./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC --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 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:34:49,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:34:49,665 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-23 22:34:49,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:34:49,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:34:49,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:34:49,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:34:49,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:34:49,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:34:49,698 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:34:49,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:34:49,699 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:34:49,699 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:34:49,699 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 22:34:49,700 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 22:34:49,700 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 22:34:49,700 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 22:34:49,700 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 22:34:49,700 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 22:34:49,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:34:49,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 22:34:49,701 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:34:49,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:34:49,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 22:34:49,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 22:34:49,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 22:34:49,701 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 22:34:49,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:34:49,701 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 22:34:49,702 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:34:49,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:34:49,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:34:49,702 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:49,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:34:49,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-23 22:34:49,702 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 22:34:49,702 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_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC 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 -> 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c [2024-11-23 22:34:49,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:34:50,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:34:50,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:34:50,012 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:34:50,012 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:34:50,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2024-11-23 22:34:53,056 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/data/a4a851322/98ea360f291e48698f763d1db417936a/FLAG99268e965 [2024-11-23 22:34:53,289 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:34:53,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2024-11-23 22:34:53,298 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/data/a4a851322/98ea360f291e48698f763d1db417936a/FLAG99268e965 [2024-11-23 22:34:53,324 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/data/a4a851322/98ea360f291e48698f763d1db417936a [2024-11-23 22:34:53,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:34:53,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:34:53,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:53,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:34:53,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:34:53,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a99d911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53, skipping insertion in model container [2024-11-23 22:34:53,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,358 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:34:53,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:53,524 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:34:53,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:53,551 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:34:53,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53 WrapperNode [2024-11-23 22:34:53,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:53,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:53,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:34:53,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:34:53,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,583 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-11-23 22:34:53,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:53,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:34:53,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:34:53,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:34:53,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,600 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 22:34:53,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,602 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,605 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:34:53,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:34:53,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:34:53,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:34:53,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:53,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:53,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:53,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 22:34:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:34:53,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:34:53,733 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:34:53,735 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:34:53,801 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-23 22:34:53,801 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:34:53,814 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:34:53,816 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 22:34:53,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:53 BoogieIcfgContainer [2024-11-23 22:34:53,816 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:34:53,817 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 22:34:53,817 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 22:34:53,825 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 22:34:53,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 22:34:53,826 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 10:34:53" (1/3) ... [2024-11-23 22:34:53,827 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25c5cd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:34:53, skipping insertion in model container [2024-11-23 22:34:53,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 22:34:53,827 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53" (2/3) ... [2024-11-23 22:34:53,827 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25c5cd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:34:53, skipping insertion in model container [2024-11-23 22:34:53,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 22:34:53,828 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:53" (3/3) ... [2024-11-23 22:34:53,829 INFO L363 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2024-11-23 22:34:53,896 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 22:34:53,897 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 22:34:53,897 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 22:34:53,897 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 22:34:53,897 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 22:34:53,898 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 22:34:53,898 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 22:34:53,898 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 22:34:53,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:53,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 22:34:53,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:53,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:53,925 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 22:34:53,926 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 22:34:53,926 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 22:34:53,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:53,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 22:34:53,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:53,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:53,929 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 22:34:53,929 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 22:34:53,935 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0;" [2024-11-23 22:34:53,935 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~v1~0#1 > 0;" "assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1;" [2024-11-23 22:34:53,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:53,941 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-23 22:34:53,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:53,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658055116] [2024-11-23 22:34:53,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:53,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,033 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:54,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:54,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2024-11-23 22:34:54,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:54,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72430151] [2024-11-23 22:34:54,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:54,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,075 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:54,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:54,086 INFO L85 PathProgramCache]: Analyzing trace with hash 28693896, now seen corresponding path program 1 times [2024-11-23 22:34:54,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:54,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717493283] [2024-11-23 22:34:54,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:54,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,105 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:54,225 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 22:34:54,226 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 22:34:54,226 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 22:34:54,226 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 22:34:54,226 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 22:34:54,226 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:54,226 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 22:34:54,226 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 22:34:54,227 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2024-11-23 22:34:54,227 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 22:34:54,227 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 22:34:54,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:54,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:54,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:54,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:54,372 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 22:34:54,372 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 22:34:54,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:54,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:54,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:54,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-23 22:34:54,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 22:34:54,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 22:34:54,405 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 22:34:54,405 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 22:34:54,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-23 22:34:54,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:54,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:54,413 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:54,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-23 22:34:54,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 22:34:54,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 22:34:54,439 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 22:34:54,439 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 22:34:54,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:54,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:54,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:54,451 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:54,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 22:34:54,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 22:34:54,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-23 22:34:54,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:54,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:54,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:54,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:54,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 22:34:54,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 22:34:54,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-23 22:34:54,578 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 22:34:54,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:54,582 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 22:34:54,582 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 22:34:54,582 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 22:34:54,582 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 22:34:54,582 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 22:34:54,582 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:54,582 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 22:34:54,582 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 22:34:54,582 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2024-11-23 22:34:54,582 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 22:34:54,582 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 22:34:54,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:54,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:54,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:54,612 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:54,698 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 22:34:54,703 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 22:34:54,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:54,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:54,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:54,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-23 22:34:54,712 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 [2024-11-23 22:34:54,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 22:34:54,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 22:34:54,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 22:34:54,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 22:34:54,740 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-23 22:34:54,740 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-23 22:34:54,752 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 22:34:54,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:54,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:54,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:54,764 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:54,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-23 22:34:54,769 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 [2024-11-23 22:34:54,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 22:34:54,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 22:34:54,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 22:34:54,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 22:34:54,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 22:34:54,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 22:34:54,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 22:34:54,793 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 22:34:54,801 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-23 22:34:54,804 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 22:34:54,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:54,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:54,810 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:54,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-23 22:34:54,813 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 22:34:54,813 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 22:34:54,813 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 22:34:54,814 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~v2~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-11-23 22:34:54,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-23 22:34:54,830 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 22:34:54,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:54,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:34:54,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:54,903 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:34:54,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:34:54,951 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-23 22:34:54,953 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-23 22:34:54,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-23 22:34:55,023 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 25 states and 33 transitions. Complement of second has 6 states. [2024-11-23 22:34:55,025 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 [2024-11-23 22:34:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-23 22:34:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-11-23 22:34:55,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2024-11-23 22:34:55,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 22:34:55,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-23 22:34:55,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 22:34:55,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-23 22:34:55,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 22:34:55,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2024-11-23 22:34:55,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 22:34:55,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 9 states and 12 transitions. [2024-11-23 22:34:55,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-23 22:34:55,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-23 22:34:55,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-11-23 22:34:55,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 22:34:55,046 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-11-23 22:34:55,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-11-23 22:34:55,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-23 22:34:55,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2024-11-23 22:34:55,073 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-11-23 22:34:55,073 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-11-23 22:34:55,073 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 22:34:55,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2024-11-23 22:34:55,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 22:34:55,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:55,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:55,074 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-23 22:34:55,074 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 22:34:55,074 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0;" "assume main_~v1~0#1 > 0;" "assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0;" [2024-11-23 22:34:55,074 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~v1~0#1 > 0;" "assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1;" [2024-11-23 22:34:55,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:55,075 INFO L85 PathProgramCache]: Analyzing trace with hash 28693898, now seen corresponding path program 1 times [2024-11-23 22:34:55,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:55,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790410573] [2024-11-23 22:34:55,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:55,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:55,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 22:34:55,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790410573] [2024-11-23 22:34:55,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790410573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:34:55,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973617403] [2024-11-23 22:34:55,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:55,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:34:55,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:55,154 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:34:55,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 22:34:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:55,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:34:55,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:55,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:34:55,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973617403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:34:55,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:34:55,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2024-11-23 22:34:55,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539916911] [2024-11-23 22:34:55,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:34:55,241 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-23 22:34:55,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:55,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 2 times [2024-11-23 22:34:55,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:55,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470906324] [2024-11-23 22:34:55,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:55,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:55,246 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:55,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:55,293 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 22:34:55,294 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 22:34:55,294 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 22:34:55,294 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 22:34:55,294 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 22:34:55,294 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:55,294 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 22:34:55,294 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 22:34:55,294 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2024-11-23 22:34:55,294 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 22:34:55,294 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 22:34:55,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:55,302 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:55,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:55,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:55,396 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 22:34:55,396 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 22:34:55,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:55,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:55,399 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:55,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-23 22:34:55,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 22:34:55,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 22:34:55,432 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 22:34:55,432 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: [] [2024-11-23 22:34:55,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:55,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:55,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:55,449 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:55,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-23 22:34:55,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 22:34:55,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 22:34:55,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-23 22:34:55,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:55,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:55,489 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:55,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-23 22:34:55,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 22:34:55,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 22:34:55,595 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 22:34:55,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-23 22:34:55,598 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 22:34:55,598 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 22:34:55,598 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 22:34:55,599 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 22:34:55,599 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 22:34:55,599 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:55,599 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 22:34:55,599 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 22:34:55,599 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2024-11-23 22:34:55,599 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 22:34:55,599 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 22:34:55,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:55,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:55,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:55,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:55,706 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 22:34:55,706 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 22:34:55,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:55,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:55,710 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:55,713 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 [2024-11-23 22:34:55,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-23 22:34:55,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 22:34:55,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 22:34:55,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 22:34:55,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 22:34:55,732 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-23 22:34:55,732 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-23 22:34:55,737 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 22:34:55,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-23 22:34:55,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:55,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:55,751 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:55,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-23 22:34:55,756 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 [2024-11-23 22:34:55,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 22:34:55,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 22:34:55,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 22:34:55,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 22:34:55,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 22:34:55,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 22:34:55,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 22:34:55,778 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 22:34:55,785 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-23 22:34:55,786 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 22:34:55,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:55,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:55,788 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:55,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-23 22:34:55,795 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 22:34:55,795 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 22:34:55,795 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 22:34:55,795 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~v2~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-11-23 22:34:55,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:55,808 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 22:34:55,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:55,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:34:55,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:55,855 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:34:55,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:55,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:34:55,860 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-23 22:34:55,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:55,873 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 5 states. [2024-11-23 22:34:55,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-23 22:34:55,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:55,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-23 22:34:55,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-23 22:34:55,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 22:34:55,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-23 22:34:55,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 22:34:55,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-23 22:34:55,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 22:34:55,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2024-11-23 22:34:55,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 22:34:55,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2024-11-23 22:34:55,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-23 22:34:55,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-23 22:34:55,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2024-11-23 22:34:55,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 22:34:55,879 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-11-23 22:34:55,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2024-11-23 22:34:55,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-23 22:34:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:55,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2024-11-23 22:34:55,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-11-23 22:34:55,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 22:34:55,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:34:55,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:34:55,884 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:55,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:34:55,897 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2024-11-23 22:34:55,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2024-11-23 22:34:55,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 22:34:55,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 18 transitions. [2024-11-23 22:34:55,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-23 22:34:55,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-23 22:34:55,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2024-11-23 22:34:55,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 22:34:55,899 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-11-23 22:34:55,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2024-11-23 22:34:55,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-11-23 22:34:55,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:55,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2024-11-23 22:34:55,901 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-11-23 22:34:55,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:34:55,903 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-11-23 22:34:55,903 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 22:34:55,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2024-11-23 22:34:55,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 22:34:55,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:55,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:55,904 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2024-11-23 22:34:55,904 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 22:34:55,904 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_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0;" "assume main_~v1~0#1 > 0;" "assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1;" "assume main_~v1~0#1 > 0;" "assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0;" "assume main_~v1~0#1 > 0;" "assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0;" [2024-11-23 22:34:55,904 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~v1~0#1 > 0;" "assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1;" [2024-11-23 22:34:55,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:55,905 INFO L85 PathProgramCache]: Analyzing trace with hash -532342184, now seen corresponding path program 1 times [2024-11-23 22:34:55,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:55,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456156798] [2024-11-23 22:34:55,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:55,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:55,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 22:34:55,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456156798] [2024-11-23 22:34:55,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456156798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:34:55,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775781900] [2024-11-23 22:34:55,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:55,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:34:55,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:55,963 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:34:55,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 22:34:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:56,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:34:56,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:56,055 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:34:56,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775781900] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:34:56,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:34:56,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-23 22:34:56,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216395187] [2024-11-23 22:34:56,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:34:56,095 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-23 22:34:56,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:56,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 3 times [2024-11-23 22:34:56,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:56,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309033621] [2024-11-23 22:34:56,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:56,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:56,101 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:56,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:56,149 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 22:34:56,149 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 22:34:56,150 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 22:34:56,150 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 22:34:56,150 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 22:34:56,150 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:56,150 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 22:34:56,150 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 22:34:56,150 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2024-11-23 22:34:56,150 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 22:34:56,150 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 22:34:56,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:56,161 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:56,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:56,175 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:56,241 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 22:34:56,241 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 22:34:56,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:56,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:56,245 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:56,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-23 22:34:56,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 22:34:56,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 22:34:56,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-23 22:34:56,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:56,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:56,282 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:56,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-23 22:34:56,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 22:34:56,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 22:34:56,324 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 22:34:56,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:56,327 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 22:34:56,327 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 22:34:56,327 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 22:34:56,327 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 22:34:56,327 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 22:34:56,327 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:56,327 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 22:34:56,327 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 22:34:56,327 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2024-11-23 22:34:56,328 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 22:34:56,328 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 22:34:56,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:56,341 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:56,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:56,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 22:34:56,428 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 22:34:56,428 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 22:34:56,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:56,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:56,432 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:56,437 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 [2024-11-23 22:34:56,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-23 22:34:56,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 22:34:56,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 22:34:56,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 22:34:56,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 22:34:56,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 22:34:56,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 22:34:56,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 22:34:56,461 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 22:34:56,467 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 22:34:56,467 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 22:34:56,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:56,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:56,471 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:56,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-23 22:34:56,474 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 22:34:56,475 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 22:34:56,475 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 22:34:56,475 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0#1) = 1*ULTIMATE.start_main_~v1~0#1 Supporting invariants [] [2024-11-23 22:34:56,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:56,487 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 22:34:56,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:56,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:34:56,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:56,561 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:34:56,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:56,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:34:56,589 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 [2024-11-23 22:34:56,589 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:56,622 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 27 transitions. Complement of second has 4 states. [2024-11-23 22:34:56,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-23 22:34:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:56,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-11-23 22:34:56,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2024-11-23 22:34:56,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 22:34:56,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-23 22:34:56,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 22:34:56,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-23 22:34:56,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 22:34:56,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2024-11-23 22:34:56,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 22:34:56,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 18 states and 25 transitions. [2024-11-23 22:34:56,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-23 22:34:56,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-23 22:34:56,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2024-11-23 22:34:56,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 22:34:56,634 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2024-11-23 22:34:56,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2024-11-23 22:34:56,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2024-11-23 22:34:56,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.4375) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:56,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2024-11-23 22:34:56,639 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 23 transitions. [2024-11-23 22:34:56,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 22:34:56,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:34:56,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:34:56,640 INFO L87 Difference]: Start difference. First operand 16 states and 23 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:34:56,660 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2024-11-23 22:34:56,660 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2024-11-23 22:34:56,661 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 22:34:56,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2024-11-23 22:34:56,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 22:34:56,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 22:34:56,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 22:34:56,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 22:34:56,664 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 22:34:56,664 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 22:34:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:34:56,666 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 22:34:56,666 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 22:34:56,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-23 22:34:56,666 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 22:34:56,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-23 22:34:56,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 10:34:56 BoogieIcfgContainer [2024-11-23 22:34:56,681 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 22:34:56,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:34:56,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:34:56,682 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:34:56,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:53" (3/4) ... [2024-11-23 22:34:56,685 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:34:56,687 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:34:56,690 INFO L158 Benchmark]: Toolchain (without parser) took 3360.90ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 36.4MB in the end (delta: 56.5MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2024-11-23 22:34:56,692 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:56,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.54ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 83.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:34:56,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.20ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 81.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:56,694 INFO L158 Benchmark]: Boogie Preprocessor took 27.92ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 81.0MB in the end (delta: 858.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:56,694 INFO L158 Benchmark]: RCFGBuilder took 203.42ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 72.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:34:56,695 INFO L158 Benchmark]: BuchiAutomizer took 2863.71ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 37.0MB in the end (delta: 35.4MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-23 22:34:56,697 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 117.4MB. Free memory was 37.0MB in the beginning and 36.4MB in the end (delta: 570.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:56,699 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.54ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 83.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.20ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 81.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.92ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 81.0MB in the end (delta: 858.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.42ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 72.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2863.71ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 37.0MB in the end (delta: 35.4MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 117.4MB. Free memory was 37.0MB in the beginning and 36.4MB in the end (delta: 570.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * v2) + m) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * v2) + m) and consists of 3 locations. One deterministic module has affine ranking function v1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 34 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-23 22:34:56,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:56,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-23 22:34:57,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-23 22:34:57,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 22:34:57,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21fba92-f606-498d-9e9e-86bc49b5ab9a/bin/uautomizer-verify-LYvppIcaGC/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