./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a8c97e87f793b5839cb424b8cc5fefc3a9d4b8a56c80aade72a0ae572eae02d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:33:02,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:33:02,290 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 04:33:02,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:33:02,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:33:02,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:33:02,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:33:02,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:33:02,340 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:33:02,340 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:33:02,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:33:02,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:33:02,342 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:33:02,342 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 04:33:02,342 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 04:33:02,343 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 04:33:02,343 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 04:33:02,343 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 04:33:02,343 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 04:33:02,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:33:02,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 04:33:02,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:33:02,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:33:02,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 04:33:02,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 04:33:02,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 04:33:02,344 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:33:02,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:33:02,344 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 04:33:02,344 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:33:02,345 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:33:02,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:33:02,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:33:02,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:33:02,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 04:33:02,346 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 04:33:02,346 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_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a8c97e87f793b5839cb424b8cc5fefc3a9d4b8a56c80aade72a0ae572eae02d [2024-11-28 04:33:02,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:33:02,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:33:02,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:33:02,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:33:02,702 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:33:02,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c [2024-11-28 04:33:05,927 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/data/74b0ae664/af9a1a4483b14c2b85f3247842204e3b/FLAG20d4619f7 [2024-11-28 04:33:06,195 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:33:06,196 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c [2024-11-28 04:33:06,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/data/74b0ae664/af9a1a4483b14c2b85f3247842204e3b/FLAG20d4619f7 [2024-11-28 04:33:06,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/data/74b0ae664/af9a1a4483b14c2b85f3247842204e3b [2024-11-28 04:33:06,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:33:06,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:33:06,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:33:06,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:33:06,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:33:06,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a7772a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06, skipping insertion in model container [2024-11-28 04:33:06,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:33:06,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:33:06,450 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:33:06,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:33:06,476 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:33:06,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06 WrapperNode [2024-11-28 04:33:06,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:33:06,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:33:06,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:33:06,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:33:06,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,504 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-11-28 04:33:06,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:33:06,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:33:06,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:33:06,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:33:06,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,520 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 04:33:06,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,522 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:33:06,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:33:06,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:33:06,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:33:06,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (1/1) ... [2024-11-28 04:33:06,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:06,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:06,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:06,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 04:33:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:33:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:33:06,693 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:33:06,695 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:33:06,764 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-28 04:33:06,764 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:33:06,774 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:33:06,775 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:33:06,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:06 BoogieIcfgContainer [2024-11-28 04:33:06,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:33:06,776 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 04:33:06,776 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 04:33:06,783 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 04:33:06,787 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:33:06,787 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 04:33:06" (1/3) ... [2024-11-28 04:33:06,788 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a5e9a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:33:06, skipping insertion in model container [2024-11-28 04:33:06,788 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:33:06,788 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:06" (2/3) ... [2024-11-28 04:33:06,788 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a5e9a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:33:06, skipping insertion in model container [2024-11-28 04:33:06,789 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:33:06,789 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:06" (3/3) ... [2024-11-28 04:33:06,790 INFO L363 chiAutomizerObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex9.c [2024-11-28 04:33:06,858 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 04:33:06,858 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 04:33:06,858 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 04:33:06,858 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 04:33:06,858 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 04:33:06,859 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 04:33:06,859 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 04:33:06,859 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 04:33:06,864 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) [2024-11-28 04:33:06,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 04:33:06,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:33:06,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:33:06,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 04:33:06,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:33:06,884 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 04:33:06,885 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) [2024-11-28 04:33:06,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 04:33:06,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:33:06,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:33:06,886 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 04:33:06,886 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:33:06,893 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~p~0#1, main_~q~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_#t~nondet0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~p~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-28 04:33:06,894 INFO L749 eck$LassoCheckResult]: Loop: "assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1;" "assume main_~q~0#1 < main_~p~0#1;main_~q~0#1 := main_~q~0#1 - 1;" [2024-11-28 04:33:06,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 04:33:06,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:33:06,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145868826] [2024-11-28 04:33:06,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:06,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:06,973 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:33:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:06,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:33:06,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:06,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1223, now seen corresponding path program 1 times [2024-11-28 04:33:06,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:33:06,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256593163] [2024-11-28 04:33:06,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:06,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,006 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:33:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:33:07,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:07,013 INFO L85 PathProgramCache]: Analyzing trace with hash 925705, now seen corresponding path program 1 times [2024-11-28 04:33:07,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:33:07,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415201637] [2024-11-28 04:33:07,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:07,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,020 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:33:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:33:07,122 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:33:07,123 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:33:07,123 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:33:07,123 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:33:07,124 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:33:07,124 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,124 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:33:07,124 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:33:07,124 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration1_Loop [2024-11-28 04:33:07,124 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:33:07,124 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:33:07,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:07,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:07,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:07,240 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:33:07,241 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:33:07,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:07,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:07,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 04:33:07,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:33:07,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:33:07,280 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:33:07,280 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: [] [2024-11-28 04:33:07,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 04:33:07,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:07,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:07,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:33:07,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:33:07,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 04:33:07,320 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:33:07,320 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: [] [2024-11-28 04:33:07,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 04:33:07,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:07,329 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:07,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 04:33:07,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:33:07,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:33:07,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 04:33:07,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:07,362 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:07,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 04:33:07,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:33:07,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:33:07,407 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:33:07,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:07,410 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:33:07,410 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:33:07,410 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:33:07,411 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:33:07,411 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:33:07,411 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,411 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:33:07,411 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:33:07,411 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration1_Loop [2024-11-28 04:33:07,411 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:33:07,411 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:33:07,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:07,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:07,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:07,510 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:33:07,514 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:33:07,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:07,517 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:07,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 04:33:07,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:33:07,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:33:07,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:33:07,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:33:07,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:33:07,541 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:33:07,541 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:33:07,548 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:33:07,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-28 04:33:07,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:07,567 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:07,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 04:33:07,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:33:07,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:33:07,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:33:07,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:33:07,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:33:07,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:33:07,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:33:07,591 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:33:07,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:07,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:07,604 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:07,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 04:33:07,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:33:07,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:33:07,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:33:07,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:33:07,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:33:07,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:33:07,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:33:07,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:33:07,630 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:33:07,635 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 04:33:07,638 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:33:07,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:07,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:07,644 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:07,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 04:33:07,649 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:33:07,650 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:33:07,650 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:33:07,651 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = 1*ULTIMATE.start_main_~q~0#1 Supporting invariants [] [2024-11-28 04:33:07,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-28 04:33:07,660 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:33:07,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:07,698 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:33:07,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:07,717 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:33:07,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:07,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:33:07,786 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 04:33:07,788 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:33:07,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-28 04:33:07,853 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 20 states and 29 transitions. Complement of second has 6 states. [2024-11-28 04:33:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 04:33:07,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:33:07,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-11-28 04:33:07,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-28 04:33:07,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:33:07,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-28 04:33:07,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:33:07,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-28 04:33:07,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:33:07,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2024-11-28 04:33:07,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 04:33:07,875 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 11 states and 16 transitions. [2024-11-28 04:33:07,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-28 04:33:07,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-28 04:33:07,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2024-11-28 04:33:07,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:33:07,879 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2024-11-28 04:33:07,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2024-11-28 04:33:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-11-28 04:33:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:33:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2024-11-28 04:33:07,906 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2024-11-28 04:33:07,907 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2024-11-28 04:33:07,907 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 04:33:07,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2024-11-28 04:33:07,907 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 04:33:07,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:33:07,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:33:07,909 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 04:33:07,909 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 04:33:07,909 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~p~0#1, main_~q~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_#t~nondet0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~p~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1;" [2024-11-28 04:33:07,910 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~q~0#1 < main_~p~0#1);" "assume main_~p~0#1 < main_~q~0#1;main_~p~0#1 := main_~p~0#1 - 1;" "assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1;" [2024-11-28 04:33:07,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash 29861, now seen corresponding path program 1 times [2024-11-28 04:33:07,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:33:07,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760955672] [2024-11-28 04:33:07,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:07,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,918 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:33:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:33:07,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:07,924 INFO L85 PathProgramCache]: Analyzing trace with hash 45764, now seen corresponding path program 1 times [2024-11-28 04:33:07,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:33:07,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209309972] [2024-11-28 04:33:07,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:07,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,935 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:33:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:33:07,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:07,943 INFO L85 PathProgramCache]: Analyzing trace with hash 889605024, now seen corresponding path program 1 times [2024-11-28 04:33:07,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:33:07,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190103962] [2024-11-28 04:33:07,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:07,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,953 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:33:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:07,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:33:08,011 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:33:08,012 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:33:08,012 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:33:08,012 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:33:08,012 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:33:08,012 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,012 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:33:08,013 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:33:08,013 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration2_Loop [2024-11-28 04:33:08,013 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:33:08,013 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:33:08,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:08,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:08,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:08,087 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:33:08,087 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:33:08,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:08,092 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:08,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 04:33:08,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:33:08,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:33:08,120 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:33:08,120 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 04:33:08,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:08,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:08,136 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:08,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 04:33:08,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:33:08,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:33:08,167 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:33:08,167 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 04:33:08,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-28 04:33:08,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:08,179 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:08,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 04:33:08,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:33:08,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:33:08,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-28 04:33:08,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:08,212 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:08,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 04:33:08,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:33:08,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:33:08,285 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:33:08,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-28 04:33:08,288 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:33:08,288 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:33:08,288 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:33:08,289 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:33:08,289 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:33:08,289 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,289 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:33:08,289 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:33:08,289 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration2_Loop [2024-11-28 04:33:08,289 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:33:08,289 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:33:08,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:08,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:08,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:33:08,356 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:33:08,356 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:33:08,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:08,358 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:08,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 04:33:08,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:33:08,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:33:08,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:33:08,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:33:08,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:33:08,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:33:08,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:33:08,389 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:33:08,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:08,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:08,401 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:08,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 04:33:08,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:33:08,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:33:08,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:33:08,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:33:08,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:33:08,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:33:08,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:33:08,432 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:33:08,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:08,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:08,443 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:08,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 04:33:08,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:33:08,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:33:08,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:33:08,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:33:08,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:33:08,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:33:08,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:33:08,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:33:08,469 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:33:08,475 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:33:08,475 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 04:33:08,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:33:08,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:08,477 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:08,482 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:33:08,482 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:33:08,483 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:33:08,483 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = 1*ULTIMATE.start_main_~p~0#1 Supporting invariants [] [2024-11-28 04:33:08,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 04:33:08,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-28 04:33:08,495 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:33:08,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:08,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:33:08,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:08,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:33:08,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:33:08,564 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 04:33:08,564 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:33:08,600 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 39 transitions. Complement of second has 6 states. [2024-11-28 04:33:08,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 04:33:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:33:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-11-28 04:33:08,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-28 04:33:08,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:33:08,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-28 04:33:08,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:33:08,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-28 04:33:08,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:33:08,606 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 39 transitions. [2024-11-28 04:33:08,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 04:33:08,608 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 36 transitions. [2024-11-28 04:33:08,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-28 04:33:08,610 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-28 04:33:08,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 36 transitions. [2024-11-28 04:33:08,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:33:08,610 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 36 transitions. [2024-11-28 04:33:08,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 36 transitions. [2024-11-28 04:33:08,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2024-11-28 04:33:08,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 22 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:33:08,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2024-11-28 04:33:08,617 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 35 transitions. [2024-11-28 04:33:08,617 INFO L425 stractBuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2024-11-28 04:33:08,617 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 04:33:08,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 35 transitions. [2024-11-28 04:33:08,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 04:33:08,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:33:08,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:33:08,618 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 04:33:08,618 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 04:33:08,619 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~p~0#1, main_~q~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_#t~nondet0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~p~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1;" "assume !(main_~q~0#1 < main_~p~0#1);" [2024-11-28 04:33:08,619 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~p~0#1 < main_~q~0#1);" "assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1;" "assume !(main_~q~0#1 < main_~p~0#1);" [2024-11-28 04:33:08,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:08,619 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2024-11-28 04:33:08,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:33:08,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527227753] [2024-11-28 04:33:08,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:08,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:08,628 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:33:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:33:08,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:33:08,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:08,639 INFO L85 PathProgramCache]: Analyzing trace with hash 50236, now seen corresponding path program 1 times [2024-11-28 04:33:08,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:33:08,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315888197] [2024-11-28 04:33:08,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:08,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:08,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:33:08,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315888197] [2024-11-28 04:33:08,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315888197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:08,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809847181] [2024-11-28 04:33:08,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:08,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:08,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:08,707 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:08,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:33:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:08,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:33:08,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:08,751 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:08,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809847181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:33:08,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:33:08,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-28 04:33:08,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299933561] [2024-11-28 04:33:08,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:33:08,779 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 04:33:08,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:33:08,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:33:08,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:33:08,782 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. cyclomatic complexity: 16 Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:33:08,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:08,811 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2024-11-28 04:33:08,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2024-11-28 04:33:08,812 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:33:08,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2024-11-28 04:33:08,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 04:33:08,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 04:33:08,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 04:33:08,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:33:08,813 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:33:08,813 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:33:08,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:33:08,816 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:33:08,816 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 04:33:08,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:33:08,816 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:33:08,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 04:33:08,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 04:33:08 BoogieIcfgContainer [2024-11-28 04:33:08,831 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 04:33:08,832 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:33:08,832 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:33:08,832 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:33:08,833 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:06" (3/4) ... [2024-11-28 04:33:08,835 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:33:08,836 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:33:08,837 INFO L158 Benchmark]: Toolchain (without parser) took 2596.95ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 57.2MB in the end (delta: 35.7MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2024-11-28 04:33:08,837 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:33:08,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.38ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:33:08,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.84ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 82.0MB in the end (delta: 867.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:33:08,838 INFO L158 Benchmark]: Boogie Preprocessor took 33.18ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:33:08,839 INFO L158 Benchmark]: RCFGBuilder took 236.81ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 72.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:33:08,839 INFO L158 Benchmark]: BuchiAutomizer took 2055.35ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 57.3MB in the end (delta: 15.4MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-11-28 04:33:08,840 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:33:08,843 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.38ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.84ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 82.0MB in the end (delta: 867.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.18ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 236.81ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 72.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2055.35ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 57.3MB in the end (delta: 15.4MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 21.1kB). 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function q and consists of 4 locations. One deterministic module has affine ranking function p and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 12 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 04:33:08,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:33:09,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:09,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18cd9493-1d0c-4152-9518-c26ebf32f049/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE