./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.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_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/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_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/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_a47e538f-7d4f-4f64-9deb-0934d772bfa2/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 b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:27:03,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:27:03,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-27 23:27:03,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:27:03,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:27:03,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:27:03,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:27:03,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:27:03,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:27:03,913 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:27:03,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:27:03,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:27:03,914 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:27:03,914 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 23:27:03,914 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 23:27:03,914 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 23:27:03,914 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 23:27:03,914 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 23:27:03,915 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 23:27:03,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:27:03,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 23:27:03,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:27:03,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:27:03,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 23:27:03,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 23:27:03,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 23:27:03,917 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:27:03,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:27:03,918 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 23:27:03,918 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:27:03,918 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:27:03,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:27:03,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:27:03,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:27:03,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 23:27:03,919 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 23:27:03,919 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_a47e538f-7d4f-4f64-9deb-0934d772bfa2/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 -> b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 [2024-11-27 23:27:04,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:27:04,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:27:04,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:27:04,230 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:27:04,230 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:27:04,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2024-11-27 23:27:07,190 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/data/db4a95ff5/22efc180bf0d4673aa0169f200fb6dcc/FLAGebc6cc486 [2024-11-27 23:27:07,436 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:27:07,437 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2024-11-27 23:27:07,445 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/data/db4a95ff5/22efc180bf0d4673aa0169f200fb6dcc/FLAGebc6cc486 [2024-11-27 23:27:07,472 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/data/db4a95ff5/22efc180bf0d4673aa0169f200fb6dcc [2024-11-27 23:27:07,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:27:07,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:27:07,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:27:07,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:27:07,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:27:07,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb222af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07, skipping insertion in model container [2024-11-27 23:27:07,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:27:07,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:27:07,674 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:27:07,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:27:07,699 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:27:07,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07 WrapperNode [2024-11-27 23:27:07,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:27:07,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:27:07,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:27:07,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:27:07,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,733 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2024-11-27 23:27:07,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:27:07,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:27:07,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:27:07,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:27:07,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,745 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,751 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-27 23:27:07,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,754 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:27:07,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:27:07,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:27:07,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:27:07,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (1/1) ... [2024-11-27 23:27:07,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:07,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:07,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:07,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 23:27:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:27:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:27:07,909 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:27:07,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:27:07,987 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-27 23:27:07,987 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:27:08,000 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:27:08,000 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 23:27:08,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:27:08 BoogieIcfgContainer [2024-11-27 23:27:08,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:27:08,002 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 23:27:08,002 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 23:27:08,008 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 23:27:08,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:27:08,009 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 11:27:07" (1/3) ... [2024-11-27 23:27:08,010 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49fa47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:27:08, skipping insertion in model container [2024-11-27 23:27:08,011 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:27:08,011 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:07" (2/3) ... [2024-11-27 23:27:08,011 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49fa47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:27:08, skipping insertion in model container [2024-11-27 23:27:08,011 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:27:08,011 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:27:08" (3/3) ... [2024-11-27 23:27:08,013 INFO L363 chiAutomizerObserver]: Analyzing ICFG b.09-no-inv_assume.c [2024-11-27 23:27:08,063 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 23:27:08,064 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 23:27:08,064 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 23:27:08,064 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 23:27:08,064 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 23:27:08,065 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 23:27:08,065 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 23:27:08,065 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 23:27:08,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:08,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:27:08,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:27:08,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:27:08,090 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 23:27:08,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 23:27:08,092 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 23:27:08,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:08,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:27:08,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:27:08,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:27:08,094 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 23:27:08,094 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 23:27:08,101 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" [2024-11-27 23:27:08,101 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~x~0#1);" "assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-11-27 23:27:08,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:08,107 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-27 23:27:08,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:08,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867121349] [2024-11-27 23:27:08,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:08,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:08,203 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:08,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:08,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:08,228 INFO L85 PathProgramCache]: Analyzing trace with hash 40910, now seen corresponding path program 1 times [2024-11-27 23:27:08,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:08,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709478457] [2024-11-27 23:27:08,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:08,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:08,245 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:08,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:08,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:08,257 INFO L85 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 1 times [2024-11-27 23:27:08,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:08,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001420131] [2024-11-27 23:27:08,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:08,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:08,274 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:08,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:08,406 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:27:08,407 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:27:08,407 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:27:08,407 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:27:08,407 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 23:27:08,408 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:08,408 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:27:08,408 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:27:08,408 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2024-11-27 23:27:08,408 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:27:08,408 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:27:08,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:08,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:08,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:08,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:08,602 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:27:08,603 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 23:27:08,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:08,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:08,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:08,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-27 23:27:08,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:08,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:08,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-27 23:27:08,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:08,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:08,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:08,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-27 23:27:08,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:27:08,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:08,816 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 23:27:08,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-27 23:27:08,820 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:27:08,821 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:27:08,821 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:27:08,821 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:27:08,821 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 23:27:08,821 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:08,821 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:27:08,821 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:27:08,821 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2024-11-27 23:27:08,821 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:27:08,821 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:27:08,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:08,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:08,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:08,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:08,944 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:27:08,948 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 23:27:08,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:08,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:08,952 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:08,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-27 23:27:08,956 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 [2024-11-27 23:27:08,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 23:27:08,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 23:27:08,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 23:27:08,974 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-27 23:27:08,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 23:27:08,984 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-27 23:27:08,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 23:27:08,996 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 23:27:09,003 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 23:27:09,006 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 23:27:09,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:09,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:09,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-27 23:27:09,017 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 23:27:09,017 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 23:27:09,018 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 23:27:09,018 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-27 23:27:09,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-27 23:27:09,033 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 23:27:09,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:09,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:27:09,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:09,111 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:27:09,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:27:09,208 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 [2024-11-27 23:27:09,211 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:09,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-27 23:27:09,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 32 transitions. Complement of second has 6 states. [2024-11-27 23:27:09,285 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 [2024-11-27 23:27:09,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-11-27 23:27:09,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-27 23:27:09,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:09,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-27 23:27:09,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:09,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-27 23:27:09,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:09,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2024-11-27 23:27:09,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:27:09,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 13 states and 16 transitions. [2024-11-27 23:27:09,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-27 23:27:09,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-27 23:27:09,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-11-27 23:27:09,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 23:27:09,314 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-27 23:27:09,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-11-27 23:27:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2024-11-27 23:27:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-11-27 23:27:09,340 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-27 23:27:09,341 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-27 23:27:09,341 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 23:27:09,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-11-27 23:27:09,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:27:09,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:27:09,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:27:09,343 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-27 23:27:09,343 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 23:27:09,343 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "assume !(0 == main_~x~0#1);" [2024-11-27 23:27:09,343 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1;" "main_~c~0#1 := 1 + main_~c~0#1;" "assume !(0 == main_~x~0#1);" [2024-11-27 23:27:09,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:09,346 INFO L85 PathProgramCache]: Analyzing trace with hash 925609, now seen corresponding path program 1 times [2024-11-27 23:27:09,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:09,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517083877] [2024-11-27 23:27:09,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:09,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:09,354 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:09,360 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:09,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:09,362 INFO L85 PathProgramCache]: Analyzing trace with hash 48712, now seen corresponding path program 1 times [2024-11-27 23:27:09,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:09,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428708284] [2024-11-27 23:27:09,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:09,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:09,376 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:09,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:09,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:09,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1805032864, now seen corresponding path program 1 times [2024-11-27 23:27:09,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:09,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933490774] [2024-11-27 23:27:09,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:09,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:09,390 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:09,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:09,438 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:27:09,438 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:27:09,438 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:27:09,438 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:27:09,438 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 23:27:09,438 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,438 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:27:09,438 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:27:09,438 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Loop [2024-11-27 23:27:09,438 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:27:09,438 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:27:09,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,570 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:27:09,571 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 23:27:09,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:09,573 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:09,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-27 23:27:09,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:09,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:09,601 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:09,601 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: [] [2024-11-27 23:27:09,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-27 23:27:09,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:09,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:09,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-27 23:27:09,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:09,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:09,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:09,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:09,638 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:09,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-27 23:27:09,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:27:09,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:09,685 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:09,685 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=1}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-11-27 23:27:09,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-27 23:27:09,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:09,696 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:09,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-27 23:27:09,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:09,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:09,718 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:09,718 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: [] [2024-11-27 23:27:09,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-27 23:27:09,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:09,726 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:09,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-27 23:27:09,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:09,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:09,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-27 23:27:09,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:09,749 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:09,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-27 23:27:09,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:27:09,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:09,786 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:09,786 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=-4}] Lambdas: [1, 5, 1] Nus: [0, 1] [2024-11-27 23:27:09,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-27 23:27:09,844 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:27:09,844 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:27:09,847 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:27:09,847 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:27:09,847 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 23:27:09,847 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,847 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:27:09,847 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:27:09,847 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2024-11-27 23:27:09,847 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:27:09,847 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:27:09,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:09,997 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:27:09,998 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 23:27:09,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:09,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:10,000 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:10,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-27 23:27:10,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:10,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:10,028 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:10,028 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 23:27:10,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:10,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:10,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:10,040 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:10,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-27 23:27:10,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:10,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:10,060 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:10,060 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 23:27:10,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-27 23:27:10,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:10,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:10,073 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:10,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-27 23:27:10,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:10,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:10,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:10,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:10,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:10,107 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:10,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-27 23:27:10,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:27:10,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:10,222 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 23:27:10,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-27 23:27:10,225 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:27:10,225 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:27:10,225 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:27:10,226 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:27:10,226 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 23:27:10,226 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:10,226 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:27:10,226 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:27:10,226 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2024-11-27 23:27:10,226 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:27:10,226 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:27:10,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:10,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:10,238 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:10,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:10,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:10,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:10,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:10,375 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:27:10,375 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 23:27:10,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:10,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:10,377 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:10,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-27 23:27:10,381 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 [2024-11-27 23:27:10,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 23:27:10,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 23:27:10,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 23:27:10,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 23:27:10,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 23:27:10,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 23:27:10,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 23:27:10,400 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 23:27:10,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-27 23:27:10,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:10,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:10,412 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:10,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-27 23:27:10,416 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 [2024-11-27 23:27:10,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 23:27:10,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 23:27:10,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 23:27:10,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 23:27:10,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 23:27:10,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 23:27:10,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 23:27:10,435 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 23:27:10,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:10,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:10,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:10,446 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:10,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-27 23:27:10,451 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 [2024-11-27 23:27:10,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 23:27:10,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 23:27:10,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 23:27:10,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 23:27:10,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 23:27:10,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 23:27:10,473 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 23:27:10,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-27 23:27:10,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:10,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:10,485 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:10,489 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 [2024-11-27 23:27:10,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-27 23:27:10,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 23:27:10,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 23:27:10,504 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-27 23:27:10,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 23:27:10,518 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-11-27 23:27:10,518 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-27 23:27:10,542 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 23:27:10,568 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-11-27 23:27:10,568 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2024-11-27 23:27:10,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:10,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:10,570 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:10,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-27 23:27:10,574 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 23:27:10,599 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-11-27 23:27:10,599 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 23:27:10,599 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [2*ULTIMATE.start_main_~x~0#1 - 1 >= 0] [2024-11-27 23:27:10,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:10,614 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-27 23:27:10,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:10,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:27:10,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:10,674 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:27:10,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:27:10,709 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-27 23:27:10,710 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-27 23:27:10,754 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 17 states and 22 transitions. Complement of second has 5 states. [2024-11-27 23:27:10,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2024-11-27 23:27:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-27 23:27:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2024-11-27 23:27:10,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-27 23:27:10,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:10,758 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 23:27:10,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:10,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:27:10,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:10,816 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:27:10,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:27:10,849 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-27 23:27:10,849 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-27 23:27:10,892 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 22 states and 27 transitions. Complement of second has 6 states. [2024-11-27 23:27:10,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-27 23:27:10,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-27 23:27:10,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-27 23:27:10,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-27 23:27:10,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:10,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-27 23:27:10,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:10,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 6 letters. [2024-11-27 23:27:10,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:10,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2024-11-27 23:27:10,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:27:10,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 14 states and 17 transitions. [2024-11-27 23:27:10,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-27 23:27:10,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-27 23:27:10,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2024-11-27 23:27:10,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 23:27:10,897 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-27 23:27:10,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2024-11-27 23:27:10,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2024-11-27 23:27:10,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:10,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-11-27 23:27:10,898 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-11-27 23:27:10,898 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-11-27 23:27:10,898 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 23:27:10,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2024-11-27 23:27:10,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:27:10,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:27:10,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:27:10,899 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-27 23:27:10,899 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 23:27:10,899 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "assume !(0 == main_~x~0#1);" "assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-11-27 23:27:10,899 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~x~0#1);" "assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-11-27 23:27:10,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:10,902 INFO L85 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 2 times [2024-11-27 23:27:10,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:10,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581998169] [2024-11-27 23:27:10,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:10,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:10,913 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:10,921 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:10,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:10,922 INFO L85 PathProgramCache]: Analyzing trace with hash 40972, now seen corresponding path program 2 times [2024-11-27 23:27:10,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:10,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039721402] [2024-11-27 23:27:10,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:10,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:10,931 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:10,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:10,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:10,939 INFO L85 PathProgramCache]: Analyzing trace with hash -532051712, now seen corresponding path program 1 times [2024-11-27 23:27:10,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:10,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904728562] [2024-11-27 23:27:10,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:10,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:10,950 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:10,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:11,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:11,032 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:27:11,032 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:27:11,032 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:27:11,033 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:27:11,033 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 23:27:11,033 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,033 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:27:11,033 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:27:11,033 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Loop [2024-11-27 23:27:11,034 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:27:11,034 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:27:11,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,143 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:27:11,145 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 23:27:11,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,149 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-27 23:27:11,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:11,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:11,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,181 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-27 23:27:11,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:27:11,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,229 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:11,229 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~y~0#1=-5} Honda state: {ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~y~0#1=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [12, 1, 9] Nus: [0, 0] [2024-11-27 23:27:11,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-27 23:27:11,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,240 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-27 23:27:11,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:11,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,269 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:11,269 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 23:27:11,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:11,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,281 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-27 23:27:11,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:11,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-27 23:27:11,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,316 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-27 23:27:11,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:27:11,322 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,358 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:11,358 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=-4}] Lambdas: [1, 5, 1] Nus: [0, 1] [2024-11-27 23:27:11,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-27 23:27:11,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,368 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-27 23:27:11,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:11,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,390 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:11,390 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 23:27:11,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-27 23:27:11,442 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:27:11,442 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:27:11,442 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:27:11,442 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:27:11,442 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 23:27:11,442 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,442 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:27:11,442 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:27:11,442 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2024-11-27 23:27:11,442 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:27:11,442 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:27:11,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,450 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,570 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:27:11,571 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 23:27:11,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,573 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:11,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-27 23:27:11,594 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:11,594 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 23:27:11,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:11,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,605 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-27 23:27:11,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:11,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,633 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:11,633 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 23:27:11,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-27 23:27:11,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,644 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-27 23:27:11,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:11,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,663 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:11,663 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 23:27:11,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-27 23:27:11,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,671 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-27 23:27:11,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:11,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-27 23:27:11,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,695 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-27 23:27:11,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:27:11,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:11,734 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 23:27:11,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-27 23:27:11,737 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:27:11,737 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:27:11,737 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:27:11,737 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:27:11,737 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 23:27:11,737 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,737 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:27:11,737 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:27:11,737 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2024-11-27 23:27:11,737 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:27:11,737 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:27:11,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:11,859 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:27:11,859 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 23:27:11,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,861 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-27 23:27:11,863 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 [2024-11-27 23:27:11,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 23:27:11,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 23:27:11,875 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-27 23:27:11,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 23:27:11,890 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-11-27 23:27:11,890 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-27 23:27:11,914 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 23:27:11,943 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2024-11-27 23:27:11,943 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-11-27 23:27:11,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:11,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:11,945 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:11,949 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 23:27:11,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-27 23:27:11,969 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-11-27 23:27:11,969 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 23:27:11,969 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 >= 0] [2024-11-27 23:27:11,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-27 23:27:11,982 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-27 23:27:12,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:12,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:27:12,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:12,088 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:27:12,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:12,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:27:12,144 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2024-11-27 23:27:12,145 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:12,231 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 10 states. [2024-11-27 23:27:12,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2024-11-27 23:27:12,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:12,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2024-11-27 23:27:12,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-27 23:27:12,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:12,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-27 23:27:12,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:12,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 6 letters. [2024-11-27 23:27:12,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:27:12,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2024-11-27 23:27:12,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:27:12,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 25 transitions. [2024-11-27 23:27:12,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-27 23:27:12,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-27 23:27:12,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2024-11-27 23:27:12,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 23:27:12,239 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-27 23:27:12,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2024-11-27 23:27:12,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 12. [2024-11-27 23:27:12,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-11-27 23:27:12,241 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-27 23:27:12,241 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-27 23:27:12,241 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 23:27:12,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-11-27 23:27:12,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 23:27:12,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:27:12,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:27:12,242 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:27:12,242 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 23:27:12,242 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "assume !(0 == main_~x~0#1);" "assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1;" "main_~c~0#1 := 1 + main_~c~0#1;" "assume !(0 == main_~x~0#1);" "assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-11-27 23:27:12,242 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~x~0#1);" "assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-11-27 23:27:12,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:12,242 INFO L85 PathProgramCache]: Analyzing trace with hash -530204732, now seen corresponding path program 2 times [2024-11-27 23:27:12,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:12,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668518397] [2024-11-27 23:27:12,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:12,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:12,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:27:12,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668518397] [2024-11-27 23:27:12,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668518397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:12,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718274034] [2024-11-27 23:27:12,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:12,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:12,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:12,330 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:12,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 23:27:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:12,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:27:12,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:12,371 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:12,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718274034] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:27:12,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:27:12,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-27 23:27:12,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603696236] [2024-11-27 23:27:12,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:12,388 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 23:27:12,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:12,389 INFO L85 PathProgramCache]: Analyzing trace with hash 40972, now seen corresponding path program 3 times [2024-11-27 23:27:12,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:27:12,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857561266] [2024-11-27 23:27:12,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:12,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:12,393 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:27:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:27:12,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:27:12,423 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:27:12,423 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:27:12,423 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:27:12,423 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:27:12,423 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 23:27:12,423 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:12,423 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:27:12,423 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:27:12,423 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration4_Loop [2024-11-27 23:27:12,423 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:27:12,423 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:27:12,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:12,433 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:12,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:12,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:27:12,502 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:27:12,502 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 23:27:12,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:12,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:12,506 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:12,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-27 23:27:12,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:12,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:12,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-27 23:27:12,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:12,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:12,535 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:12,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-27 23:27:12,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:27:12,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:12,581 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:12,581 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~y~0#1=-5} Honda state: {ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~y~0#1=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [12, 1, 9] Nus: [0, 0] [2024-11-27 23:27:12,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-27 23:27:12,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:12,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:12,593 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:12,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-27 23:27:12,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:12,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:12,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:12,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:12,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:12,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:12,636 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:12,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-27 23:27:12,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:27:12,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:12,679 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:12,680 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=-4}] Lambdas: [1, 5, 1] Nus: [0, 1] [2024-11-27 23:27:12,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-27 23:27:12,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:12,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:12,692 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:12,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-27 23:27:12,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:12,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:12,716 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:12,716 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 23:27:12,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-27 23:27:12,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:27:12,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:12,727 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:12,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-27 23:27:12,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:27:12,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:27:12,748 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:27:12,748 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 23:27:12,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:12,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:27:12,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:27:12,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:27:12,761 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:27:12,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:12,789 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2024-11-27 23:27:12,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2024-11-27 23:27:12,790 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 23:27:12,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2024-11-27 23:27:12,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-27 23:27:12,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-27 23:27:12,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-27 23:27:12,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:27:12,791 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:27:12,791 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:27:12,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:27:12,792 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:27:12,792 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-27 23:27:12,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:27:12,794 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 23:27:12,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-27 23:27:12,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 11:27:12 BoogieIcfgContainer [2024-11-27 23:27:12,805 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 23:27:12,806 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:27:12,806 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:27:12,806 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:27:12,807 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:27:08" (3/4) ... [2024-11-27 23:27:12,809 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:27:12,810 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:27:12,811 INFO L158 Benchmark]: Toolchain (without parser) took 5334.04ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 84.2MB in the end (delta: 8.6MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2024-11-27 23:27:12,812 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:27:12,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.92ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 82.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:27:12,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.73ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.8MB in the end (delta: 881.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:27:12,815 INFO L158 Benchmark]: Boogie Preprocessor took 32.73ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.9MB in the end (delta: 932.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:27:12,815 INFO L158 Benchmark]: RCFGBuilder took 232.43ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 72.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:27:12,815 INFO L158 Benchmark]: BuchiAutomizer took 4803.79ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 85.0MB in the end (delta: -12.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:27:12,815 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 84.2MB in the end (delta: 820.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:27:12,821 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.92ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 82.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.73ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.8MB in the end (delta: 881.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.73ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.9MB in the end (delta: 932.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 232.43ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 72.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4803.79ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 85.0MB in the end (delta: -12.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 84.2MB in the end (delta: 820.4kB). 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 (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * y) + x) and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.8s. 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, 13 StatesRemovedByMinimization, 3 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 [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 29 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax154 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf95 smp100 dnf149 smp100 tf103 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 116ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 6 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-27 23:27:12,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:13,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a47e538f-7d4f-4f64-9deb-0934d772bfa2/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