./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Pure2Phase-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_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Pure2Phase-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a633be8572429ac13238ea7bd46ff22a6a657dc142a1db237c08b8a68a6d4e8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:32:03,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:32:03,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 03:32:03,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:32:03,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:32:03,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:32:03,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:32:03,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:32:03,378 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:32:03,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:32:03,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:32:03,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:32:03,379 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:32:03,379 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 03:32:03,379 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 03:32:03,379 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 03:32:03,379 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 03:32:03,379 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 03:32:03,380 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 03:32:03,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:32:03,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 03:32:03,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:32:03,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:32:03,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 03:32:03,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 03:32:03,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 03:32:03,380 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:32:03,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:32:03,381 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 03:32:03,381 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:32:03,381 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:32:03,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:32:03,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:32:03,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:32:03,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 03:32:03,382 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 03:32:03,382 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_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a633be8572429ac13238ea7bd46ff22a6a657dc142a1db237c08b8a68a6d4e8 [2024-11-28 03:32:03,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:32:03,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:32:03,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:32:03,726 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:32:03,726 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:32:03,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted/Pure2Phase-1.c [2024-11-28 03:32:06,882 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/data/5a52e214e/4d46f6b7a27c4fec8f1330e012b412b7/FLAG4390f327c [2024-11-28 03:32:07,131 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:32:07,132 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/sv-benchmarks/c/termination-crafted/Pure2Phase-1.c [2024-11-28 03:32:07,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/data/5a52e214e/4d46f6b7a27c4fec8f1330e012b412b7/FLAG4390f327c [2024-11-28 03:32:07,172 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/data/5a52e214e/4d46f6b7a27c4fec8f1330e012b412b7 [2024-11-28 03:32:07,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:32:07,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:32:07,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:07,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:32:07,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:32:07,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1627824a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07, skipping insertion in model container [2024-11-28 03:32:07,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,201 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:32:07,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:07,389 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:32:07,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:07,419 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:32:07,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07 WrapperNode [2024-11-28 03:32:07,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:07,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:07,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:32:07,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:32:07,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,459 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-11-28 03:32:07,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:07,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:32:07,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:32:07,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:32:07,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,475 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,482 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 03:32:07,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,486 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:32:07,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:32:07,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:32:07,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:32:07,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (1/1) ... [2024-11-28 03:32:07,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:07,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:07,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:07,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 03:32:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:32:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:32:07,670 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:32:07,672 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:32:07,757 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-28 03:32:07,757 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:32:07,768 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:32:07,768 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:32:07,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:07 BoogieIcfgContainer [2024-11-28 03:32:07,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:32:07,770 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 03:32:07,770 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 03:32:07,777 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 03:32:07,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:32:07,779 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:32:07" (1/3) ... [2024-11-28 03:32:07,780 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@159e6565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:32:07, skipping insertion in model container [2024-11-28 03:32:07,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:32:07,780 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:07" (2/3) ... [2024-11-28 03:32:07,780 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@159e6565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:32:07, skipping insertion in model container [2024-11-28 03:32:07,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:32:07,781 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:07" (3/3) ... [2024-11-28 03:32:07,782 INFO L363 chiAutomizerObserver]: Analyzing ICFG Pure2Phase-1.c [2024-11-28 03:32:07,838 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 03:32:07,839 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 03:32:07,839 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 03:32:07,839 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 03:32:07,839 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 03:32:07,839 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 03:32:07,840 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 03:32:07,840 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 03:32:07,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:07,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:32:07,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:32:07,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:32:07,867 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 03:32:07,868 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 03:32:07,868 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 03:32:07,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:07,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:32:07,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:32:07,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:32:07,870 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 03:32:07,870 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 03:32:07,879 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823);" "assume !!(main_~z~0#1 <= 1073741823);" [2024-11-28 03:32:07,879 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~z~0#1 >= 0;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !(main_~y~0#1 >= 0);main_~z~0#1 := main_~z~0#1 - 1;" [2024-11-28 03:32:07,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:07,887 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-11-28 03:32:07,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:07,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912062409] [2024-11-28 03:32:07,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:07,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:07,959 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:07,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:07,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:07,980 INFO L85 PathProgramCache]: Analyzing trace with hash 47803, now seen corresponding path program 1 times [2024-11-28 03:32:07,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:07,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066988282] [2024-11-28 03:32:07,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:07,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:07,991 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:07,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:07,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:07,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908788, now seen corresponding path program 1 times [2024-11-28 03:32:07,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:07,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577950352] [2024-11-28 03:32:07,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:07,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:08,009 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:08,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:08,132 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:32:08,133 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:32:08,133 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:32:08,133 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:32:08,134 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 03:32:08,134 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:08,134 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:32:08,134 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:32:08,134 INFO L132 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration1_Loop [2024-11-28 03:32:08,134 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:32:08,135 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:32:08,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:08,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:08,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:08,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:08,320 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:32:08,321 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 03:32:08,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:08,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:08,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:08,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 03:32:08,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:08,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:08,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 03:32:08,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:08,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:08,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:08,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 03:32:08,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 03:32:08,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:08,407 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 03:32:08,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 03:32:08,412 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:32:08,412 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:32:08,412 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:32:08,412 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:32:08,412 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 03:32:08,412 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:08,412 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:32:08,412 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:32:08,413 INFO L132 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration1_Loop [2024-11-28 03:32:08,413 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:32:08,413 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:32:08,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:08,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:08,435 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:08,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:08,561 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:32:08,566 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 03:32:08,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:08,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:08,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:08,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 03:32:08,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:08,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:08,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:32:08,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:08,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:08,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:08,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:32:08,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:32:08,600 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 03:32:08,607 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 03:32:08,610 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 03:32:08,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:08,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:08,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:08,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 03:32:08,624 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 03:32:08,624 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 03:32:08,625 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 03:32:08,626 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2024-11-28 03:32:08,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:08,644 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 03:32:08,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:08,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:32:08,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:08,714 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:32:08,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:08,804 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 03:32:08,806 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2024-11-28 03:32:08,859 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 26 states and 35 transitions. Complement of second has 6 states. [2024-11-28 03:32:08,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:32:08,866 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) [2024-11-28 03:32:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-11-28 03:32:08,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-28 03:32:08,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:08,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-28 03:32:08,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:08,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2024-11-28 03:32:08,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:08,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 35 transitions. [2024-11-28 03:32:08,897 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:32:08,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 14 states and 17 transitions. [2024-11-28 03:32:08,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-28 03:32:08,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-28 03:32:08,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2024-11-28 03:32:08,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:32:08,903 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-28 03:32:08,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-28 03:32:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2024-11-28 03:32:08,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-28 03:32:08,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2024-11-28 03:32:08,934 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-28 03:32:08,934 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-28 03:32:08,934 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 03:32:08,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2024-11-28 03:32:08,935 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:32:08,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:32:08,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:32:08,935 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:08,935 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 03:32:08,935 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823);" "assume !!(main_~z~0#1 <= 1073741823);" "assume main_~z~0#1 >= 0;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~y~0#1 >= 0;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" [2024-11-28 03:32:08,935 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~z~0#1 <= 1073741823);" "assume main_~z~0#1 >= 0;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~y~0#1 >= 0;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" [2024-11-28 03:32:08,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:08,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908781, now seen corresponding path program 1 times [2024-11-28 03:32:08,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:08,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749928261] [2024-11-28 03:32:08,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:08,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:08,946 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:08,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:08,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:08,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1835256, now seen corresponding path program 1 times [2024-11-28 03:32:08,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:08,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801327507] [2024-11-28 03:32:08,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:08,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:08,971 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:08,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:08,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:08,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1143297948, now seen corresponding path program 1 times [2024-11-28 03:32:08,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:08,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652570434] [2024-11-28 03:32:08,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:08,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:08,991 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:09,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:09,049 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:32:09,049 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:32:09,049 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:32:09,049 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:32:09,049 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 03:32:09,050 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,050 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:32:09,050 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:32:09,050 INFO L132 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration2_Loop [2024-11-28 03:32:09,050 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:32:09,050 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:32:09,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,152 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:32:09,152 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 03:32:09,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,157 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:09,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:09,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 03:32:09,185 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:32:09,185 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:32:09,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-28 03:32:09,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,194 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 03:32:09,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:09,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:09,219 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:32:09,219 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:32:09,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 03:32:09,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 03:32:09,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:09,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:09,245 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:32:09,246 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:32:09,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-28 03:32:09,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,253 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 03:32:09,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:09,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:09,270 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:32:09,270 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=0} Honda state: {ULTIMATE.start_main_~z~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:32:09,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-28 03:32:09,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,280 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 03:32:09,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:09,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:09,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-28 03:32:09,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,305 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 03:32:09,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 03:32:09,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:09,379 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 03:32:09,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-28 03:32:09,387 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:32:09,387 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:32:09,387 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:32:09,387 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:32:09,387 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 03:32:09,388 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,388 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:32:09,388 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:32:09,388 INFO L132 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration2_Loop [2024-11-28 03:32:09,388 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:32:09,388 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:32:09,390 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,489 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:32:09,489 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 03:32:09,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,491 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 03:32:09,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:09,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:09,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:09,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:09,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:09,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:32:09,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:32:09,518 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:32:09,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-28 03:32:09,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,529 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 03:32:09,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:09,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:09,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:09,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:09,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:09,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:32:09,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:32:09,557 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:32:09,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-28 03:32:09,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,567 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 03:32:09,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:09,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:09,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:32:09,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:09,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:09,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:09,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:32:09,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:32:09,585 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:32:09,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-28 03:32:09,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,597 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 03:32:09,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:09,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:09,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:32:09,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:09,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:09,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:09,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:32:09,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:32:09,616 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:32:09,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:09,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,628 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 03:32:09,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:09,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:09,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:32:09,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:09,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:09,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:09,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:32:09,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:32:09,658 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 03:32:09,661 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 03:32:09,661 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 03:32:09,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:09,664 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:09,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 03:32:09,670 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 03:32:09,670 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 03:32:09,670 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 03:32:09,670 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-28 03:32:09,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:09,680 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 03:32:09,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:09,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:32:09,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:09,735 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:32:09,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:09,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:09,783 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 03:32:09,784 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:09,823 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 22 states and 27 transitions. Complement of second has 6 states. [2024-11-28 03:32:09,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 03:32:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-11-28 03:32:09,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-28 03:32:09,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:09,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-28 03:32:09,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:09,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2024-11-28 03:32:09,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:09,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2024-11-28 03:32:09,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 03:32:09,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 27 transitions. [2024-11-28 03:32:09,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-28 03:32:09,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-28 03:32:09,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2024-11-28 03:32:09,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:32:09,832 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-11-28 03:32:09,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2024-11-28 03:32:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2024-11-28 03:32:09,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:09,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2024-11-28 03:32:09,834 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-28 03:32:09,834 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-28 03:32:09,835 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 03:32:09,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2024-11-28 03:32:09,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 03:32:09,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:32:09,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:32:09,840 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:09,840 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 03:32:09,841 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823);" "assume !!(main_~z~0#1 <= 1073741823);" "assume main_~z~0#1 >= 0;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~y~0#1 >= 0;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~z~0#1 <= 1073741823);" [2024-11-28 03:32:09,841 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~z~0#1 >= 0;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !(main_~y~0#1 >= 0);main_~z~0#1 := main_~z~0#1 - 1;" [2024-11-28 03:32:09,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:09,841 INFO L85 PathProgramCache]: Analyzing trace with hash 179597393, now seen corresponding path program 2 times [2024-11-28 03:32:09,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:09,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539637167] [2024-11-28 03:32:09,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:09,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:09,854 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:09,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:09,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:09,866 INFO L85 PathProgramCache]: Analyzing trace with hash 47803, now seen corresponding path program 2 times [2024-11-28 03:32:09,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:09,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845140070] [2024-11-28 03:32:09,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:09,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:09,879 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:09,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:09,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:09,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1143297941, now seen corresponding path program 1 times [2024-11-28 03:32:09,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:09,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140390545] [2024-11-28 03:32:09,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:09,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:09,901 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:09,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:09,955 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:32:09,955 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:32:09,955 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:32:09,955 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:32:09,955 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 03:32:09,955 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:09,955 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:32:09,955 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:32:09,955 INFO L132 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration3_Loop [2024-11-28 03:32:09,956 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:32:09,956 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:32:09,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:09,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,041 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:32:10,041 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 03:32:10,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,044 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:10,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:10,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 03:32:10,077 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:32:10,078 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:32:10,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:10,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,091 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:10,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:10,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 03:32:10,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:10,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,131 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 03:32:10,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 03:32:10,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:10,184 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:32:10,185 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=-8} Honda state: {ULTIMATE.start_main_~y~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0#1=-1}, {ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~y~0#1=0}] Lambdas: [1, 4, 2] Nus: [0, 1] [2024-11-28 03:32:10,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-28 03:32:10,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,195 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 03:32:10,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:10,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:10,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-28 03:32:10,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,217 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 03:32:10,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 03:32:10,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:10,251 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 03:32:10,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-28 03:32:10,255 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:32:10,255 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:32:10,256 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:32:10,256 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:32:10,256 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 03:32:10,256 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,256 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:32:10,256 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:32:10,256 INFO L132 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration3_Loop [2024-11-28 03:32:10,256 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:32:10,256 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:32:10,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,333 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:32:10,334 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 03:32:10,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,336 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 03:32:10,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:10,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:10,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:32:10,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:10,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:10,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:10,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:32:10,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:32:10,359 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:32:10,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-28 03:32:10,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,373 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 03:32:10,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:10,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:10,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:10,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:10,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:10,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:32:10,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:32:10,400 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:32:10,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-28 03:32:10,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,411 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 03:32:10,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:10,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:10,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:32:10,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:10,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:10,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:10,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:32:10,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:32:10,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 03:32:10,437 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 03:32:10,437 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 03:32:10,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,443 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 03:32:10,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 03:32:10,445 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 03:32:10,445 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 03:32:10,446 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2024-11-28 03:32:10,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-28 03:32:10,458 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 03:32:10,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:10,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:32:10,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:10,511 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:32:10,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:10,544 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 03:32:10,544 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:10,569 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 29 states and 36 transitions. Complement of second has 5 states. [2024-11-28 03:32:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:32:10,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-11-28 03:32:10,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-28 03:32:10,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:10,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 3 letters. [2024-11-28 03:32:10,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:10,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 6 letters. [2024-11-28 03:32:10,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:10,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2024-11-28 03:32:10,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 03:32:10,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 23 states and 28 transitions. [2024-11-28 03:32:10,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-28 03:32:10,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-28 03:32:10,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2024-11-28 03:32:10,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:32:10,574 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-11-28 03:32:10,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2024-11-28 03:32:10,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-28 03:32:10,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:10,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2024-11-28 03:32:10,576 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-11-28 03:32:10,576 INFO L425 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-11-28 03:32:10,576 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 03:32:10,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2024-11-28 03:32:10,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 03:32:10,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:32:10,577 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:32:10,578 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 03:32:10,578 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 03:32:10,578 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823);" "assume !!(main_~z~0#1 <= 1073741823);" "assume main_~z~0#1 >= 0;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~y~0#1 >= 0;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~z~0#1 <= 1073741823);" "assume main_~z~0#1 >= 0;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~y~0#1 >= 0;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~z~0#1 <= 1073741823);" [2024-11-28 03:32:10,578 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~z~0#1 >= 0;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !(main_~y~0#1 >= 0);main_~z~0#1 := main_~z~0#1 - 1;" [2024-11-28 03:32:10,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:10,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1082497990, now seen corresponding path program 3 times [2024-11-28 03:32:10,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:10,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150450869] [2024-11-28 03:32:10,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:10,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:10,585 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:10,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:10,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:10,591 INFO L85 PathProgramCache]: Analyzing trace with hash 47803, now seen corresponding path program 3 times [2024-11-28 03:32:10,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:10,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214135484] [2024-11-28 03:32:10,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:10,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:10,601 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:10,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:10,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2083143710, now seen corresponding path program 2 times [2024-11-28 03:32:10,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:32:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601507481] [2024-11-28 03:32:10,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:10,620 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:10,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:32:10,684 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:32:10,685 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:32:10,685 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:32:10,685 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:32:10,685 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 03:32:10,685 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,685 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:32:10,685 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:32:10,685 INFO L132 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration4_Loop [2024-11-28 03:32:10,685 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:32:10,685 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:32:10,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,803 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:32:10,805 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 03:32:10,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,807 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 03:32:10,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:32:10,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:10,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-28 03:32:10,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-28 03:32:10,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:10,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,844 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-28 03:32:10,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 03:32:10,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:32:10,882 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 03:32:10,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-28 03:32:10,884 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:32:10,884 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:32:10,885 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:32:10,885 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:32:10,885 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 03:32:10,885 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,885 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:32:10,885 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:32:10,885 INFO L132 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration4_Loop [2024-11-28 03:32:10,885 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:32:10,885 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:32:10,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,898 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:32:10,966 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:32:10,966 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 03:32:10,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,971 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:10,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-28 03:32:10,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:32:10,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:32:10,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:32:10,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:32:10,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:32:10,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:32:10,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:32:10,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:32:10,991 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 03:32:10,994 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 03:32:10,994 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 03:32:10,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:32:10,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:10,996 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:11,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-28 03:32:11,001 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 03:32:11,001 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 03:32:11,001 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 03:32:11,001 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2024-11-28 03:32:11,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:11,010 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 03:32:11,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:11,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:32:11,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:11,068 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:32:11,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:11,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:11,108 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 03:32:11,108 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9 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) [2024-11-28 03:32:11,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9. 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 27 states and 32 transitions. Complement of second has 5 states. [2024-11-28 03:32:11,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:32:11,139 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) [2024-11-28 03:32:11,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-11-28 03:32:11,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 3 letters. [2024-11-28 03:32:11,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:11,140 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 03:32:11,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:11,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:32:11,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:11,204 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:32:11,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:11,231 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 [2024-11-28 03:32:11,232 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9 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) [2024-11-28 03:32:11,250 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9. 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 27 states and 32 transitions. Complement of second has 5 states. [2024-11-28 03:32:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:32:11,251 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) [2024-11-28 03:32:11,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-11-28 03:32:11,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 3 letters. [2024-11-28 03:32:11,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:11,252 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 03:32:11,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:11,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:32:11,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:11,312 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:32:11,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:11,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:11,338 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 [2024-11-28 03:32:11,338 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9 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) [2024-11-28 03:32:11,366 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9. 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 32 states and 38 transitions. Complement of second has 4 states. [2024-11-28 03:32:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:32:11,367 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) [2024-11-28 03:32:11,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-28 03:32:11,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2024-11-28 03:32:11,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:11,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 15 letters. Loop has 3 letters. [2024-11-28 03:32:11,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:11,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 6 letters. [2024-11-28 03:32:11,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:32:11,369 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 38 transitions. [2024-11-28 03:32:11,370 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 03:32:11,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2024-11-28 03:32:11,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 03:32:11,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 03:32:11,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 03:32:11,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:32:11,370 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:32:11,371 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:32:11,371 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:32:11,371 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 03:32:11,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:32:11,371 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 03:32:11,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 03:32:11,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:32:11 BoogieIcfgContainer [2024-11-28 03:32:11,380 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 03:32:11,381 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:32:11,381 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:32:11,381 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:32:11,382 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:07" (3/4) ... [2024-11-28 03:32:11,385 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:32:11,385 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:32:11,386 INFO L158 Benchmark]: Toolchain (without parser) took 4209.97ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 65.5MB in the end (delta: 27.6MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-11-28 03:32:11,387 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:11,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.21ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 83.0MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:32:11,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.54ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 997.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:11,388 INFO L158 Benchmark]: Boogie Preprocessor took 38.34ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.2MB in the end (delta: 830.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:11,388 INFO L158 Benchmark]: RCFGBuilder took 267.92ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 72.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:32:11,388 INFO L158 Benchmark]: BuchiAutomizer took 3610.73ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 65.5MB in the end (delta: 7.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-11-28 03:32:11,388 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 65.5MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:11,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.21ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 83.0MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.54ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 997.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.34ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.2MB in the end (delta: 830.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 267.92ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 72.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3610.73ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 65.5MB in the end (delta: 7.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 65.5MB in the end (delta: 33.7kB). 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) 2 * z) + 1) and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function (((long) 2 * z) + 1) and consists of 3 locations. One nondeterministic module has affine ranking function (((long) 2 * z) + 1) and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 65 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 03:32:11,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-28 03:32:11,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed4e5d9-15bf-4818-8a9f-f12d7b902fa4/bin/uautomizer-verify-aQ6SnzHsRB/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