./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.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_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/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_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/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_c3610224-f364-490d-9276-68a5d7b7c73e/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 fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:46:52,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:46:52,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 11:46:52,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:46:52,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:46:52,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:46:52,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:46:52,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:46:52,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:46:52,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:46:52,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:46:52,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:46:52,605 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:46:52,605 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 11:46:52,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 11:46:52,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 11:46:52,607 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:46:52,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:46:52,607 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 11:46:52,607 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:46:52,607 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:46:52,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:46:52,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:46:52,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:46:52,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 11:46:52,608 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 11:46:52,608 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_c3610224-f364-490d-9276-68a5d7b7c73e/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 -> fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 [2024-12-02 11:46:52,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:46:52,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:46:52,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:46:52,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:46:52,859 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:46:52,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2024-12-02 11:46:55,545 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/data/ffecdb116/ff312ad4246b41a28f0389f3a03d27cd/FLAG8c591ff86 [2024-12-02 11:46:55,734 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:46:55,735 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2024-12-02 11:46:55,743 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/data/ffecdb116/ff312ad4246b41a28f0389f3a03d27cd/FLAG8c591ff86 [2024-12-02 11:46:56,090 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/data/ffecdb116/ff312ad4246b41a28f0389f3a03d27cd [2024-12-02 11:46:56,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:46:56,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:46:56,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:46:56,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:46:56,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:46:56,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ead5856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56, skipping insertion in model container [2024-12-02 11:46:56,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,106 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:46:56,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:46:56,214 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:46:56,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:46:56,239 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:46:56,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56 WrapperNode [2024-12-02 11:46:56,240 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:46:56,241 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:46:56,241 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:46:56,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:46:56,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,264 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2024-12-02 11:46:56,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:46:56,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:46:56,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:46:56,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:46:56,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,273 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,278 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 11:46:56,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,280 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:46:56,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:46:56,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:46:56,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:46:56,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (1/1) ... [2024-12-02 11:46:56,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:56,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:56,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:56,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 11:46:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:46:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:46:56,385 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:46:56,387 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:46:56,450 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-02 11:46:56,451 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:46:56,459 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:46:56,459 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 11:46:56,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:46:56 BoogieIcfgContainer [2024-12-02 11:46:56,460 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:46:56,461 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 11:46:56,461 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 11:46:56,466 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 11:46:56,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:46:56,467 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 11:46:56" (1/3) ... [2024-12-02 11:46:56,468 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65cf6eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:46:56, skipping insertion in model container [2024-12-02 11:46:56,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:46:56,468 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:46:56" (2/3) ... [2024-12-02 11:46:56,468 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65cf6eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:46:56, skipping insertion in model container [2024-12-02 11:46:56,469 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:46:56,469 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:46:56" (3/3) ... [2024-12-02 11:46:56,470 INFO L363 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2024-12-02 11:46:56,516 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 11:46:56,516 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 11:46:56,516 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 11:46:56,517 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 11:46:56,517 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 11:46:56,517 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 11:46:56,517 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 11:46:56,517 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 11:46:56,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 11:46:56,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-12-02 11:46:56,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:46:56,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:46:56,541 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 11:46:56,541 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:46:56,541 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 11:46:56,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 11:46:56,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-12-02 11:46:56,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:46:56,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:46:56,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 11:46:56,543 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:46:56,549 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0;" [2024-12-02 11:46:56,549 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume !(main_~j~0#1 < main_~m~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-12-02 11:46:56,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:56,554 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-12-02 11:46:56,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:56,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102853747] [2024-12-02 11:46:56,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:56,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:56,627 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:56,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:56,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:56,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1266393, now seen corresponding path program 1 times [2024-12-02 11:46:56,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:56,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160723040] [2024-12-02 11:46:56,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:56,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:56,652 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:56,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:56,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:56,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029114, now seen corresponding path program 1 times [2024-12-02 11:46:56,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:56,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675824837] [2024-12-02 11:46:56,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:56,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:56,668 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:56,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:56,742 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:56,743 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:56,743 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:56,743 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:56,743 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:46:56,743 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:56,743 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:56,744 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:56,744 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2024-12-02 11:46:56,744 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:56,744 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:56,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:56,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:56,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:56,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:56,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:56,845 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:56,846 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:46:56,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:56,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:56,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:56,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-02 11:46:56,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:56,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:56,879 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:56,879 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 11:46:56,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-02 11:46:56,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:56,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:56,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:56,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 11:46:56,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:56,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:56,910 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:56,910 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 11:46:56,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 11:46:56,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:56,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:56,921 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:56,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 11:46:56,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:56,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:56,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 11:46:56,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:56,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:56,944 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:56,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 11:46:56,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:46:56,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:57,029 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:46:57,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 11:46:57,032 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:57,032 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:57,032 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:57,032 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:57,032 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:46:57,032 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,032 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:57,033 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:57,033 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2024-12-02 11:46:57,033 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:57,033 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:57,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,107 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:57,111 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:46:57,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,114 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 11:46:57,117 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 11:46:57,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:57,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:57,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:57,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:57,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:46:57,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:46:57,142 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:46:57,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 11:46:57,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,151 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 11:46:57,154 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 11:46:57,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:57,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:57,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:57,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:57,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:46:57,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:46:57,174 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:46:57,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 11:46:57,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,184 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 11:46:57,186 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 11:46:57,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:57,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:46:57,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:57,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:57,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:57,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:46:57,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:46:57,203 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:46:57,206 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 11:46:57,209 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 11:46:57,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,213 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 11:46:57,214 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:46:57,215 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:46:57,215 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:46:57,215 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-12-02 11:46:57,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 11:46:57,223 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:46:57,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:57,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:46:57,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:57,268 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:46:57,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:57,305 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 11:46:57,338 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 11:46:57,340 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:57,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 11:46:57,389 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 59 transitions. Complement of second has 6 states. [2024-12-02 11:46:57,391 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 11:46:57,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2024-12-02 11:46:57,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 3 letters. Loop has 4 letters. [2024-12-02 11:46:57,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:57,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 7 letters. Loop has 4 letters. [2024-12-02 11:46:57,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:57,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 3 letters. Loop has 8 letters. [2024-12-02 11:46:57,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:57,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 59 transitions. [2024-12-02 11:46:57,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-12-02 11:46:57,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 19 states and 25 transitions. [2024-12-02 11:46:57,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-12-02 11:46:57,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-12-02 11:46:57,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2024-12-02 11:46:57,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:46:57,409 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2024-12-02 11:46:57,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2024-12-02 11:46:57,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-12-02 11:46:57,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 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 11:46:57,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2024-12-02 11:46:57,426 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-12-02 11:46:57,426 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-12-02 11:46:57,426 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 11:46:57,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2024-12-02 11:46:57,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-12-02 11:46:57,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:46:57,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:46:57,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-12-02 11:46:57,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:46:57,427 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~m~0#1;" [2024-12-02 11:46:57,427 INFO L749 eck$LassoCheckResult]: Loop: "main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1;" "assume !(main_~k~0#1 < main_~N~0#1 - 1);" "main_~i~0#1 := main_~k~0#1;" "assume main_~j~0#1 < main_~m~0#1;" [2024-12-02 11:46:57,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:57,428 INFO L85 PathProgramCache]: Analyzing trace with hash 889510735, now seen corresponding path program 1 times [2024-12-02 11:46:57,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:57,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127460627] [2024-12-02 11:46:57,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:57,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:57,434 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:57,439 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:57,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:57,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1701239, now seen corresponding path program 1 times [2024-12-02 11:46:57,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:57,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809365514] [2024-12-02 11:46:57,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:57,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:57,445 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:57,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:57,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:57,451 INFO L85 PathProgramCache]: Analyzing trace with hash 629438917, now seen corresponding path program 1 times [2024-12-02 11:46:57,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:57,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545901686] [2024-12-02 11:46:57,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:57,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:57,459 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:57,466 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:57,501 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:57,502 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:57,502 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:57,502 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:57,502 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:46:57,502 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,502 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:57,502 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:57,502 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2024-12-02 11:46:57,502 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:57,502 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:57,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,579 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:57,580 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:46:57,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,581 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 11:46:57,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:57,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:57,606 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:57,606 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 11:46:57,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 11:46:57,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,613 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 11:46:57,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:57,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:57,634 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:57,634 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=-1, ULTIMATE.start_main_~N~0#1=0} Honda state: {ULTIMATE.start_main_~i~0#1=-1, ULTIMATE.start_main_~N~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 11:46:57,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 11:46:57,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,641 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-12-02 11:46:57,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:57,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:57,661 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:57,661 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 11:46:57,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-12-02 11:46:57,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,668 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-12-02 11:46:57,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:57,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:57,682 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:57,682 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 11:46:57,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-12-02 11:46:57,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,688 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-12-02 11:46:57,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:57,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:57,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-12-02 11:46:57,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,710 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 11:46:57,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:46:57,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:57,811 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:46:57,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-12-02 11:46:57,814 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:57,814 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:57,814 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:57,814 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:57,814 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:46:57,814 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,814 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:57,814 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:57,814 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2024-12-02 11:46:57,814 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:57,814 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:57,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,828 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:57,879 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:57,879 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:46:57,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,881 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 11:46:57,884 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 11:46:57,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:57,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:46:57,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:57,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:57,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:57,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:46:57,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:46:57,898 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:46:57,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 11:46:57,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,907 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 11:46:57,909 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 11:46:57,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:57,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:57,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:57,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:57,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:46:57,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:46:57,927 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:46:57,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-12-02 11:46:57,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,934 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 11:46:57,936 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 11:46:57,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:57,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:57,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:57,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:57,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:46:57,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:46:57,953 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:46:57,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 11:46:57,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,962 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 11:46:57,964 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 11:46:57,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:57,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:46:57,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:57,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:57,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:57,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:46:57,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:46:57,978 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:46:57,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-12-02 11:46:57,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:57,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:57,985 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:57,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 11:46:57,988 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 11:46:58,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:58,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:46:58,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:58,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:58,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:58,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:46:58,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:46:58,005 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:46:58,008 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-12-02 11:46:58,008 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 11:46:58,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,010 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-12-02 11:46:58,012 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:46:58,012 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:46:58,012 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:46:58,012 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-12-02 11:46:58,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 11:46:58,018 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:46:58,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:58,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:46:58,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:58,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:46:58,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:58,074 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 11:46:58,074 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 11:46:58,075 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:58,098 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 54 transitions. Complement of second has 6 states. [2024-12-02 11:46:58,099 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 11:46:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:58,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2024-12-02 11:46:58,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 6 letters. Loop has 4 letters. [2024-12-02 11:46:58,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:58,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 10 letters. Loop has 4 letters. [2024-12-02 11:46:58,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:58,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 6 letters. Loop has 8 letters. [2024-12-02 11:46:58,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:58,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 54 transitions. [2024-12-02 11:46:58,102 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-12-02 11:46:58,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 29 states and 40 transitions. [2024-12-02 11:46:58,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-12-02 11:46:58,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-12-02 11:46:58,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 40 transitions. [2024-12-02 11:46:58,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:46:58,103 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 40 transitions. [2024-12-02 11:46:58,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 40 transitions. [2024-12-02 11:46:58,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2024-12-02 11:46:58,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:58,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2024-12-02 11:46:58,105 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 38 transitions. [2024-12-02 11:46:58,105 INFO L425 stractBuchiCegarLoop]: Abstraction has 28 states and 38 transitions. [2024-12-02 11:46:58,105 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 11:46:58,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 38 transitions. [2024-12-02 11:46:58,106 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-12-02 11:46:58,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:46:58,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:46:58,106 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:46:58,106 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 11:46:58,107 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~m~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1;" [2024-12-02 11:46:58,107 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~k~0#1 < main_~N~0#1 - 1;" "main_~k~0#1 := 1 + main_~k~0#1;" [2024-12-02 11:46:58,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029034, now seen corresponding path program 1 times [2024-12-02 11:46:58,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:58,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977989875] [2024-12-02 11:46:58,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:58,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,113 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:58,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 1 times [2024-12-02 11:46:58,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:58,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819606833] [2024-12-02 11:46:58,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:58,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,122 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:58,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,125 INFO L85 PathProgramCache]: Analyzing trace with hash -533884914, now seen corresponding path program 1 times [2024-12-02 11:46:58,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:58,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186309551] [2024-12-02 11:46:58,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:58,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,131 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:58,158 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:58,158 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:58,158 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:58,158 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:58,158 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:46:58,159 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,159 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:58,159 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:58,159 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2024-12-02 11:46:58,159 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:58,159 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:58,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,200 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:58,201 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:46:58,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,202 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-12-02 11:46:58,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:58,205 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:58,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-12-02 11:46:58,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,224 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 11:46:58,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:46:58,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:58,297 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:46:58,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 11:46:58,300 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:58,300 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:58,300 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:58,300 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:58,300 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:46:58,300 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,301 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:58,301 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:58,301 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2024-12-02 11:46:58,301 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:58,301 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:58,302 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,338 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:58,339 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:46:58,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,341 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 11:46:58,343 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 11:46:58,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:58,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:46:58,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:58,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:58,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:58,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:46:58,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:46:58,360 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:46:58,364 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-12-02 11:46:58,364 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 11:46:58,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,366 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-12-02 11:46:58,368 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:46:58,368 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:46:58,368 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:46:58,368 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, ULTIMATE.start_main_~N~0#1) = -1*ULTIMATE.start_main_~k~0#1 + 1*ULTIMATE.start_main_~N~0#1 Supporting invariants [] [2024-12-02 11:46:58,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 11:46:58,378 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:46:58,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:58,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:46:58,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:58,404 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:46:58,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:58,418 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 11:46:58,418 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 11:46:58,419 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 38 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:58,438 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 38 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 54 transitions. Complement of second has 7 states. [2024-12-02 11:46:58,438 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 11:46:58,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:58,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-12-02 11:46:58,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2024-12-02 11:46:58,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:58,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2024-12-02 11:46:58,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:58,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2024-12-02 11:46:58,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:58,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 54 transitions. [2024-12-02 11:46:58,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-12-02 11:46:58,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 35 states and 48 transitions. [2024-12-02 11:46:58,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-12-02 11:46:58,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-12-02 11:46:58,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 48 transitions. [2024-12-02 11:46:58,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:46:58,442 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 48 transitions. [2024-12-02 11:46:58,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 48 transitions. [2024-12-02 11:46:58,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2024-12-02 11:46:58,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 30 states have internal predecessors, (43), 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 11:46:58,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2024-12-02 11:46:58,445 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 43 transitions. [2024-12-02 11:46:58,445 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 43 transitions. [2024-12-02 11:46:58,445 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 11:46:58,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 43 transitions. [2024-12-02 11:46:58,446 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-12-02 11:46:58,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:46:58,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:46:58,446 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:46:58,446 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:46:58,446 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~m~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1;" "assume !(main_~k~0#1 < main_~N~0#1 - 1);" "main_~i~0#1 := main_~k~0#1;" "assume !(main_~j~0#1 < main_~m~0#1);" [2024-12-02 11:46:58,446 INFO L749 eck$LassoCheckResult]: Loop: "main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume !(main_~j~0#1 < main_~m~0#1);" [2024-12-02 11:46:58,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash 629438919, now seen corresponding path program 1 times [2024-12-02 11:46:58,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:58,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624188141] [2024-12-02 11:46:58,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:58,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,455 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:58,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2215593, now seen corresponding path program 2 times [2024-12-02 11:46:58,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:58,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565159791] [2024-12-02 11:46:58,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:58,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,465 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:58,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:58,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,469 INFO L85 PathProgramCache]: Analyzing trace with hash 2007496047, now seen corresponding path program 1 times [2024-12-02 11:46:58,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:58,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855476357] [2024-12-02 11:46:58,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:58,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:58,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:46:58,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855476357] [2024-12-02 11:46:58,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855476357] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:46:58,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200938740] [2024-12-02 11:46:58,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:58,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:46:58,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,541 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-12-02 11:46:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:58,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:46:58,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:58,586 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:46:58,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200938740] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:46:58,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:46:58,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-12-02 11:46:58,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596780202] [2024-12-02 11:46:58,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:46:58,626 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:58,626 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:58,626 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:58,626 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:58,626 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:46:58,626 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,626 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:58,626 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:58,626 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2024-12-02 11:46:58,626 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:58,626 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:58,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-12-02 11:46:58,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-12-02 11:46:58,683 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:58,683 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:46:58,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,685 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-12-02 11:46:58,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:58,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:58,699 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:58,699 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 11:46:58,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-12-02 11:46:58,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,706 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-12-02 11:46:58,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:58,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:58,727 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:58,727 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 11:46:58,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-12-02 11:46:58,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,733 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-12-02 11:46:58,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:58,735 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:58,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-12-02 11:46:58,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,755 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-12-02 11:46:58,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:46:58,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:58,854 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:46:58,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-12-02 11:46:58,857 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:58,857 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:58,857 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:58,857 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:58,857 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:46:58,857 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,857 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:58,857 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:58,857 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2024-12-02 11:46:58,857 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:58,857 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:58,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:58,906 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:58,906 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:46:58,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,908 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-12-02 11:46:58,910 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 11:46:58,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:58,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:46:58,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:58,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:58,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:58,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:46:58,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:46:58,923 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:46:58,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-12-02 11:46:58,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,929 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-12-02 11:46:58,932 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 11:46:58,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:58,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:46:58,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:58,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:58,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:58,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:46:58,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:46:58,947 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:46:58,950 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-12-02 11:46:58,950 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 11:46:58,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:58,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:58,952 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:58,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-12-02 11:46:58,954 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:46:58,954 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:46:58,954 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:46:58,954 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-12-02 11:46:58,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-12-02 11:46:58,962 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:46:58,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:58,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:46:58,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:58,995 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:46:58,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:59,021 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 11:46:59,021 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 11:46:59,021 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 43 transitions. cyclomatic complexity: 17 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:59,043 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 43 transitions. cyclomatic complexity: 17. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 73 states and 98 transitions. Complement of second has 8 states. [2024-12-02 11:46:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-12-02 11:46:59,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:59,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2024-12-02 11:46:59,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 10 letters. Loop has 4 letters. [2024-12-02 11:46:59,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:59,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 14 letters. Loop has 4 letters. [2024-12-02 11:46:59,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:59,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 10 letters. Loop has 8 letters. [2024-12-02 11:46:59,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:59,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 98 transitions. [2024-12-02 11:46:59,048 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2024-12-02 11:46:59,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 56 states and 75 transitions. [2024-12-02 11:46:59,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-12-02 11:46:59,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2024-12-02 11:46:59,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 75 transitions. [2024-12-02 11:46:59,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:46:59,049 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 75 transitions. [2024-12-02 11:46:59,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 75 transitions. [2024-12-02 11:46:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2024-12-02 11:46:59,052 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 11:46:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2024-12-02 11:46:59,053 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 71 transitions. [2024-12-02 11:46:59,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:46:59,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:46:59,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:46:59,055 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:59,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:46:59,094 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2024-12-02 11:46:59,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 69 transitions. [2024-12-02 11:46:59,095 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2024-12-02 11:46:59,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 52 states and 68 transitions. [2024-12-02 11:46:59,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-12-02 11:46:59,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2024-12-02 11:46:59,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 68 transitions. [2024-12-02 11:46:59,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:46:59,095 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 68 transitions. [2024-12-02 11:46:59,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 68 transitions. [2024-12-02 11:46:59,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 32. [2024-12-02 11:46:59,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.3125) internal successors, (42), 31 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 11:46:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2024-12-02 11:46:59,098 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 42 transitions. [2024-12-02 11:46:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:46:59,100 INFO L425 stractBuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2024-12-02 11:46:59,100 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 11:46:59,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 42 transitions. [2024-12-02 11:46:59,101 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-12-02 11:46:59,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:46:59,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:46:59,101 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:46:59,101 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:46:59,101 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~m~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1;" "assume !(main_~k~0#1 < main_~N~0#1 - 1);" "main_~i~0#1 := main_~k~0#1;" "assume !(main_~j~0#1 < main_~m~0#1);" [2024-12-02 11:46:59,101 INFO L749 eck$LassoCheckResult]: Loop: "main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~m~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1;" "assume !(main_~k~0#1 < main_~N~0#1 - 1);" "main_~i~0#1 := main_~k~0#1;" "assume !(main_~j~0#1 < main_~m~0#1);" [2024-12-02 11:46:59,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:59,102 INFO L85 PathProgramCache]: Analyzing trace with hash 629438919, now seen corresponding path program 2 times [2024-12-02 11:46:59,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:59,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614488583] [2024-12-02 11:46:59,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:59,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,108 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:59,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:59,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1741160735, now seen corresponding path program 1 times [2024-12-02 11:46:59,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:59,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897180391] [2024-12-02 11:46:59,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:59,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,117 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:59,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash -827239195, now seen corresponding path program 2 times [2024-12-02 11:46:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:59,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761330093] [2024-12-02 11:46:59,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,130 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:59,172 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:59,172 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:59,172 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:59,172 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:59,173 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:46:59,173 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,173 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:59,173 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:59,173 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2024-12-02 11:46:59,173 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:59,173 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:59,174 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,231 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:59,231 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:46:59,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:59,233 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:59,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-12-02 11:46:59,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:59,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:59,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-12-02 11:46:59,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:59,258 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:59,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-12-02 11:46:59,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:46:59,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:59,353 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:46:59,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-12-02 11:46:59,357 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:59,357 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:59,357 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:59,357 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:59,357 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:46:59,357 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,357 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:59,357 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:59,357 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2024-12-02 11:46:59,357 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:59,357 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:59,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,410 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:59,410 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:46:59,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:59,412 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:59,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-12-02 11:46:59,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 11:46:59,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:46:59,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:46:59,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:46:59,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:46:59,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:46:59,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:46:59,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:46:59,428 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:46:59,430 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 11:46:59,431 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 11:46:59,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:59,432 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:59,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-12-02 11:46:59,434 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:46:59,434 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:46:59,434 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:46:59,434 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-12-02 11:46:59,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-12-02 11:46:59,441 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:46:59,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:59,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:46:59,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:59,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 11:46:59,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:59,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:46:59,538 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-12-02 11:46:59,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 15 Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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 11:46:59,556 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 15. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 80 transitions. Complement of second has 7 states. [2024-12-02 11:46:59,556 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 11:46:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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 11:46:59,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-12-02 11:46:59,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 8 letters. [2024-12-02 11:46:59,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:59,558 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 11:46:59,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:59,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:46:59,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:59,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 11:46:59,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:59,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:46:59,655 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2024-12-02 11:46:59,655 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 15 Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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 11:46:59,709 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 15. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 78 states and 103 transitions. Complement of second has 10 states. [2024-12-02 11:46:59,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-12-02 11:46:59,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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 11:46:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2024-12-02 11:46:59,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 10 letters. Loop has 8 letters. [2024-12-02 11:46:59,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:59,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 18 letters. Loop has 8 letters. [2024-12-02 11:46:59,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:59,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 10 letters. Loop has 16 letters. [2024-12-02 11:46:59,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:46:59,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 103 transitions. [2024-12-02 11:46:59,712 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-12-02 11:46:59,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 93 transitions. [2024-12-02 11:46:59,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2024-12-02 11:46:59,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-12-02 11:46:59,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 93 transitions. [2024-12-02 11:46:59,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:46:59,714 INFO L218 hiAutomatonCegarLoop]: Abstraction has 71 states and 93 transitions. [2024-12-02 11:46:59,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 93 transitions. [2024-12-02 11:46:59,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 61. [2024-12-02 11:46:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 60 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:46:59,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2024-12-02 11:46:59,717 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 80 transitions. [2024-12-02 11:46:59,717 INFO L425 stractBuchiCegarLoop]: Abstraction has 61 states and 80 transitions. [2024-12-02 11:46:59,717 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-12-02 11:46:59,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 80 transitions. [2024-12-02 11:46:59,718 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-12-02 11:46:59,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:46:59,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:46:59,719 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:46:59,719 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 11:46:59,719 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~m~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1;" "assume !(main_~k~0#1 < main_~N~0#1 - 1);" "main_~i~0#1 := main_~k~0#1;" "assume main_~j~0#1 < main_~m~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1;" [2024-12-02 11:46:59,719 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~k~0#1 < main_~N~0#1 - 1;" "main_~k~0#1 := 1 + main_~k~0#1;" [2024-12-02 11:46:59,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:59,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1962230028, now seen corresponding path program 2 times [2024-12-02 11:46:59,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:59,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996273443] [2024-12-02 11:46:59,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:59,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,726 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:59,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:59,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 2 times [2024-12-02 11:46:59,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:59,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148017663] [2024-12-02 11:46:59,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:59,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,733 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:46:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:46:59,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:46:59,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:59,736 INFO L85 PathProgramCache]: Analyzing trace with hash -212412968, now seen corresponding path program 1 times [2024-12-02 11:46:59,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:46:59,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7548251] [2024-12-02 11:46:59,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:59,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:59,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:46:59,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7548251] [2024-12-02 11:46:59,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7548251] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:46:59,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384850666] [2024-12-02 11:46:59,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:59,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:46:59,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:59,777 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:46:59,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-12-02 11:46:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:59,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:46:59,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:46:59,817 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:46:59,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384850666] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:46:59,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:46:59,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-12-02 11:46:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617781175] [2024-12-02 11:46:59,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:46:59,844 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:46:59,844 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:46:59,844 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:46:59,844 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:46:59,844 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:46:59,844 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,844 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:46:59,844 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:46:59,844 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2024-12-02 11:46:59,844 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:46:59,844 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:46:59,845 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:46:59,881 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:46:59,881 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:46:59,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:59,883 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:59,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-12-02 11:46:59,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:59,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:59,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-12-02 11:46:59,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-12-02 11:46:59,916 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:59,917 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 11:46:59,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-12-02 11:46:59,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:59,926 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:59,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-12-02 11:46:59,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:59,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:59,947 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:46:59,947 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 11:46:59,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-12-02 11:46:59,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:59,954 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:59,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-12-02 11:46:59,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:46:59,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:46:59,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-12-02 11:46:59,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:46:59,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:59,975 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:46:59,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-12-02 11:46:59,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:46:59,978 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:47:00,053 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:47:00,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-12-02 11:47:00,057 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:47:00,057 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:47:00,057 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:47:00,057 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:47:00,057 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:47:00,057 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,057 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:47:00,057 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:47:00,057 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2024-12-02 11:47:00,057 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:47:00,057 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:47:00,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,092 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:47:00,092 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:47:00,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:00,094 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:47:00,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-12-02 11:47:00,097 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 11:47:00,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:47:00,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:47:00,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:47:00,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:47:00,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:47:00,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:47:00,117 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:47:00,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-12-02 11:47:00,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:00,125 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:47:00,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-12-02 11:47:00,128 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 11:47:00,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:47:00,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:47:00,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:47:00,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:47:00,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:47:00,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:47:00,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:47:00,142 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:47:00,145 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 11:47:00,145 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 11:47:00,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:00,147 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:47:00,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-12-02 11:47:00,149 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:47:00,149 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:47:00,149 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:47:00,149 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, ULTIMATE.start_main_~N~0#1) = -1*ULTIMATE.start_main_~k~0#1 + 1*ULTIMATE.start_main_~N~0#1 Supporting invariants [] [2024-12-02 11:47:00,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-12-02 11:47:00,156 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:47:00,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,186 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,198 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 11:47:00,199 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 11:47:00,199 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 80 transitions. cyclomatic complexity: 29 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 11:47:00,218 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 80 transitions. cyclomatic complexity: 29. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 86 states and 112 transitions. Complement of second has 7 states. [2024-12-02 11:47:00,221 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 11:47:00,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 11:47:00,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-12-02 11:47:00,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2024-12-02 11:47:00,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,223 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 11:47:00,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,252 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,264 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 11:47:00,265 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-12-02 11:47:00,265 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 80 transitions. cyclomatic complexity: 29 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 11:47:00,279 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 80 transitions. cyclomatic complexity: 29. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 86 states and 112 transitions. Complement of second has 7 states. [2024-12-02 11:47:00,279 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 11:47:00,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 11:47:00,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-12-02 11:47:00,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2024-12-02 11:47:00,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,280 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 11:47:00,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,306 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,316 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 11:47:00,316 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 2 loop predicates [2024-12-02 11:47:00,317 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 80 transitions. cyclomatic complexity: 29 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 11:47:00,330 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 80 transitions. cyclomatic complexity: 29. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 80 states and 109 transitions. Complement of second has 6 states. [2024-12-02 11:47:00,331 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 11:47:00,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 11:47:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-12-02 11:47:00,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 2 letters. [2024-12-02 11:47:00,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 13 letters. Loop has 2 letters. [2024-12-02 11:47:00,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2024-12-02 11:47:00,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 109 transitions. [2024-12-02 11:47:00,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-12-02 11:47:00,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 52 states and 70 transitions. [2024-12-02 11:47:00,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-12-02 11:47:00,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-12-02 11:47:00,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 70 transitions. [2024-12-02 11:47:00,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:47:00,336 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-12-02 11:47:00,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 70 transitions. [2024-12-02 11:47:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2024-12-02 11:47:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 48 states have internal predecessors, (65), 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 11:47:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2024-12-02 11:47:00,338 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 65 transitions. [2024-12-02 11:47:00,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:47:00,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:47:00,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:47:00,338 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 11:47:00,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:00,355 INFO L93 Difference]: Finished difference Result 52 states and 66 transitions. [2024-12-02 11:47:00,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 66 transitions. [2024-12-02 11:47:00,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-12-02 11:47:00,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 66 transitions. [2024-12-02 11:47:00,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-12-02 11:47:00,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-12-02 11:47:00,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 66 transitions. [2024-12-02 11:47:00,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:47:00,356 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 66 transitions. [2024-12-02 11:47:00,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 66 transitions. [2024-12-02 11:47:00,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-12-02 11:47:00,358 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 11:47:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2024-12-02 11:47:00,359 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 66 transitions. [2024-12-02 11:47:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:47:00,359 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 66 transitions. [2024-12-02 11:47:00,360 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-12-02 11:47:00,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 66 transitions. [2024-12-02 11:47:00,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-12-02 11:47:00,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:47:00,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:47:00,361 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:47:00,361 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:47:00,361 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~m~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1;" "assume !(main_~k~0#1 < main_~N~0#1 - 1);" "main_~i~0#1 := main_~k~0#1;" "assume !(main_~j~0#1 < main_~m~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" [2024-12-02 11:47:00,361 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 < main_~m~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1;" "assume !(main_~k~0#1 < main_~N~0#1 - 1);" "main_~i~0#1 := main_~k~0#1;" [2024-12-02 11:47:00,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:00,361 INFO L85 PathProgramCache]: Analyzing trace with hash -212336728, now seen corresponding path program 3 times [2024-12-02 11:47:00,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:47:00,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571316029] [2024-12-02 11:47:00,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:00,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:47:00,365 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:47:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:47:00,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:47:00,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:00,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1574219, now seen corresponding path program 2 times [2024-12-02 11:47:00,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:47:00,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547796316] [2024-12-02 11:47:00,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:00,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:47:00,372 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:47:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:47:00,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:47:00,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:00,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2104895118, now seen corresponding path program 4 times [2024-12-02 11:47:00,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:47:00,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704601358] [2024-12-02 11:47:00,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:00,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:47:00,380 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:47:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:47:00,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:47:00,409 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:47:00,409 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:47:00,409 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:47:00,409 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:47:00,409 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:47:00,409 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,410 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:47:00,410 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:47:00,410 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2024-12-02 11:47:00,410 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:47:00,410 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:47:00,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,417 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,460 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:47:00,460 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:47:00,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:00,461 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:47:00,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-12-02 11:47:00,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:47:00,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:47:00,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-12-02 11:47:00,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:00,482 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:47:00,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-12-02 11:47:00,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:47:00,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:47:00,557 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:47:00,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-12-02 11:47:00,560 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:47:00,560 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:47:00,560 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:47:00,560 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:47:00,560 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:47:00,560 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,560 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:47:00,560 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:47:00,560 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2024-12-02 11:47:00,560 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:47:00,560 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:47:00,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,570 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:47:00,604 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:47:00,604 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:47:00,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:00,606 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:47:00,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-12-02 11:47:00,608 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 11:47:00,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:47:00,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:47:00,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:47:00,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:47:00,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:47:00,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:47:00,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:47:00,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:47:00,626 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-12-02 11:47:00,626 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 11:47:00,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:47:00,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:00,628 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:47:00,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-12-02 11:47:00,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:47:00,630 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:47:00,630 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:47:00,630 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-12-02 11:47:00,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-12-02 11:47:00,636 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:47:00,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,698 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 11:47:00,699 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 11:47:00,699 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 66 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:47:00,714 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 66 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 69 states and 90 transitions. Complement of second has 7 states. [2024-12-02 11:47:00,714 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 11:47:00,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:47:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-12-02 11:47:00,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 4 letters. [2024-12-02 11:47:00,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,715 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 11:47:00,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,779 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 11:47:00,779 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 11:47:00,779 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 66 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:47:00,802 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 66 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 84 transitions. Complement of second has 7 states. [2024-12-02 11:47:00,802 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 11:47:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:47:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-12-02 11:47:00,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 13 letters. Loop has 4 letters. [2024-12-02 11:47:00,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,803 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 11:47:00,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:00,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:47:00,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:00,867 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 11:47:00,867 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 11:47:00,868 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 66 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:47:00,882 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 66 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 87 states and 117 transitions. Complement of second has 6 states. [2024-12-02 11:47:00,883 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 11:47:00,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:47:00,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-12-02 11:47:00,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 13 letters. Loop has 4 letters. [2024-12-02 11:47:00,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 17 letters. Loop has 4 letters. [2024-12-02 11:47:00,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 13 letters. Loop has 8 letters. [2024-12-02 11:47:00,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:47:00,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 87 states and 117 transitions. [2024-12-02 11:47:00,886 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 11:47:00,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 87 states to 0 states and 0 transitions. [2024-12-02 11:47:00,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 11:47:00,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 11:47:00,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 11:47:00,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 11:47:00,886 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:47:00,886 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:47:00,886 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:47:00,886 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-12-02 11:47:00,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 11:47:00,887 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 11:47:00,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 11:47:00,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 11:47:00 BoogieIcfgContainer [2024-12-02 11:47:00,894 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 11:47:00,894 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:47:00,894 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:47:00,894 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:47:00,895 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:46:56" (3/4) ... [2024-12-02 11:47:00,896 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:47:00,897 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:47:00,898 INFO L158 Benchmark]: Toolchain (without parser) took 4805.13ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 49.5MB in the end (delta: 67.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-12-02 11:47:00,898 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:47:00,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 146.94ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 107.2MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:47:00,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.18ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 106.3MB in the end (delta: 947.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:47:00,899 INFO L158 Benchmark]: Boogie Preprocessor took 23.28ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:47:00,899 INFO L158 Benchmark]: RCFGBuilder took 171.83ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 95.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:47:00,899 INFO L158 Benchmark]: BuchiAutomizer took 4432.90ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 49.5MB in the end (delta: 46.2MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-12-02 11:47:00,899 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 17.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:47:00,901 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 146.94ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 107.2MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.18ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 106.3MB in the end (delta: 947.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.28ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 171.83ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 95.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4432.90ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 49.5MB in the end (delta: 46.2MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 17.7kB). 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 9 terminating modules (2 trivial, 5 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long) -1 * i) + n) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * j) + m) and consists of 4 locations. One deterministic module has affine ranking function (N + ((long) -1 * k)) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * i) + n) and consists of 5 locations. One deterministic module has affine ranking function (((long) -1 * i) + n) and consists of 6 locations. One nondeterministic module has affine ranking function (N + ((long) -1 * k)) and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -1 * j) + m) and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 3.1s. 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 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 43 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 [4, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 247 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 170 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s 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 11:47:00,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-12-02 11:47:01,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-12-02 11:47:01,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-12-02 11:47:01,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-12-02 11:47:01,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3610224-f364-490d-9276-68a5d7b7c73e/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