./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-05.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_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/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_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/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_b155d6bd-c94a-49c2-a442-e28fa4a904e3/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 c3769a7b9199e4d3a1d3d7ebad63ad6175b11f31d08bb9cf3238c1849c9b4724 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:49:20,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:49:20,356 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-27 19:49:20,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:49:20,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:49:20,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:49:20,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:49:20,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:49:20,406 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:49:20,407 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:49:20,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:49:20,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:49:20,408 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:49:20,409 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 19:49:20,410 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 19:49:20,410 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 19:49:20,410 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 19:49:20,410 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 19:49:20,410 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 19:49:20,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:49:20,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 19:49:20,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:49:20,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:49:20,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 19:49:20,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 19:49:20,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 19:49:20,411 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:49:20,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:49:20,412 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 19:49:20,412 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:49:20,412 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:49:20,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:49:20,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:49:20,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:49:20,412 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 19:49:20,413 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 19:49:20,414 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_b155d6bd-c94a-49c2-a442-e28fa4a904e3/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 -> c3769a7b9199e4d3a1d3d7ebad63ad6175b11f31d08bb9cf3238c1849c9b4724 [2024-11-27 19:49:20,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:49:20,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:49:20,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:49:20,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:49:20,759 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:49:20,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-bwb/or-05.c [2024-11-27 19:49:23,750 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/data/f4990fb8d/10185d326d9340178ed7ccb57318a602/FLAGac10ffce9 [2024-11-27 19:49:23,996 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:49:23,996 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/sv-benchmarks/c/termination-bwb/or-05.c [2024-11-27 19:49:24,004 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/data/f4990fb8d/10185d326d9340178ed7ccb57318a602/FLAGac10ffce9 [2024-11-27 19:49:24,025 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/data/f4990fb8d/10185d326d9340178ed7ccb57318a602 [2024-11-27 19:49:24,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:49:24,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:49:24,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:49:24,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:49:24,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:49:24,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33252e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24, skipping insertion in model container [2024-11-27 19:49:24,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:49:24,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:49:24,230 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:49:24,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:49:24,259 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:49:24,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24 WrapperNode [2024-11-27 19:49:24,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:49:24,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:49:24,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:49:24,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:49:24,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,293 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-11-27 19:49:24,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:49:24,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:49:24,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:49:24,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:49:24,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,321 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-27 19:49:24,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,323 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:49:24,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:49:24,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:49:24,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:49:24,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:49:24,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:24,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:49:24,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 19:49:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:49:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:49:24,482 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:49:24,484 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:49:24,593 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-27 19:49:24,593 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:49:24,602 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:49:24,602 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 19:49:24,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:49:24 BoogieIcfgContainer [2024-11-27 19:49:24,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:49:24,604 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 19:49:24,604 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 19:49:24,611 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 19:49:24,612 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 19:49:24,613 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 07:49:24" (1/3) ... [2024-11-27 19:49:24,614 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@483decec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 07:49:24, skipping insertion in model container [2024-11-27 19:49:24,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 19:49:24,615 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (2/3) ... [2024-11-27 19:49:24,615 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@483decec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 07:49:24, skipping insertion in model container [2024-11-27 19:49:24,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 19:49:24,616 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:49:24" (3/3) ... [2024-11-27 19:49:24,617 INFO L363 chiAutomizerObserver]: Analyzing ICFG or-05.c [2024-11-27 19:49:24,693 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 19:49:24,693 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 19:49:24,693 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 19:49:24,694 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 19:49:24,694 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 19:49:24,695 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 19:49:24,695 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 19:49:24,695 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 19:49:24,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:49:24,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:49:24,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:49:24,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:49:24,726 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 19:49:24,726 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-27 19:49:24,727 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 19:49:24,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:49:24,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:49:24,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:49:24,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:49:24,730 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 19:49:24,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-27 19:49:24,738 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0;" [2024-11-27 19:49:24,738 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 0;" "assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" [2024-11-27 19:49:24,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:24,745 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-27 19:49:24,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:24,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696195831] [2024-11-27 19:49:24,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:24,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:24,846 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:49:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:24,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:49:24,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:24,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1238, now seen corresponding path program 1 times [2024-11-27 19:49:24,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:24,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891349417] [2024-11-27 19:49:24,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:24,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:24,887 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:49:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:24,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:49:24,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:24,894 INFO L85 PathProgramCache]: Analyzing trace with hash 925720, now seen corresponding path program 1 times [2024-11-27 19:49:24,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:24,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713273879] [2024-11-27 19:49:24,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:24,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:24,908 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:49:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:24,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:49:25,054 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:49:25,055 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:49:25,055 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:49:25,055 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:49:25,056 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 19:49:25,056 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:49:25,056 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:49:25,056 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:49:25,056 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-05.c_Iteration1_Loop [2024-11-27 19:49:25,056 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:49:25,057 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:49:25,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:49:25,088 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:49:25,198 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:49:25,198 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 19:49:25,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:49:25,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:25,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:49:25,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-27 19:49:25,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:49:25,211 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:49:25,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-27 19:49:25,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:49:25,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:25,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:49:25,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-27 19:49:25,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 19:49:25,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:49:25,327 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 19:49:25,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-27 19:49:25,333 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:49:25,333 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:49:25,333 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:49:25,334 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:49:25,334 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 19:49:25,334 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:49:25,334 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:49:25,334 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:49:25,334 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-05.c_Iteration1_Loop [2024-11-27 19:49:25,334 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:49:25,335 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:49:25,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:49:25,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:49:25,457 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:49:25,462 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 19:49:25,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:49:25,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:25,466 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:49:25,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-27 19:49:25,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 19:49:25,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:49:25,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:49:25,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:49:25,491 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-27 19:49:25,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:49:25,499 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-27 19:49:25,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:49:25,506 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:49:25,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-27 19:49:25,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:49:25,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:25,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:49:25,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-27 19:49:25,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 19:49:25,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:49:25,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:49:25,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:49:25,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:49:25,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:49:25,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:49:25,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:49:25,552 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 19:49:25,558 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-27 19:49:25,562 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 19:49:25,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:49:25,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:25,567 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:49:25,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-27 19:49:25,572 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 19:49:25,572 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 19:49:25,573 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 19:49:25,574 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-27 19:49:25,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-27 19:49:25,591 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 19:49:25,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:25,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:49:25,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:49:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:25,659 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:49:25,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:49:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:49:25,725 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-27 19:49:25,728 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2024-11-27 19:49:25,795 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 29 states and 42 transitions. Complement of second has 6 states. [2024-11-27 19:49:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-27 19:49:25,804 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) [2024-11-27 19:49:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-11-27 19:49:25,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-27 19:49:25,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:49:25,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-27 19:49:25,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:49:25,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-27 19:49:25,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:49:25,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 42 transitions. [2024-11-27 19:49:25,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:49:25,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 16 states and 23 transitions. [2024-11-27 19:49:25,826 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-27 19:49:25,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-27 19:49:25,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 23 transitions. [2024-11-27 19:49:25,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 19:49:25,828 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 23 transitions. [2024-11-27 19:49:25,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 23 transitions. [2024-11-27 19:49:25,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2024-11-27 19:49:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:49:25,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-11-27 19:49:25,856 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-27 19:49:25,856 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-27 19:49:25,858 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 19:49:25,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-11-27 19:49:25,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:49:25,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:49:25,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:49:25,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-27 19:49:25,860 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-27 19:49:25,860 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0;" "assume main_~x~0#1 > 0;" "assume 1 == main_~y~0#1;" [2024-11-27 19:49:25,860 INFO L749 eck$LassoCheckResult]: Loop: "assume 0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1;main_#t~bitwise1#1 := 1 + main_~y~0#1;" "main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume main_~x~0#1 > 0;" "assume 1 == main_~y~0#1;" [2024-11-27 19:49:25,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:25,861 INFO L85 PathProgramCache]: Analyzing trace with hash 925705, now seen corresponding path program 1 times [2024-11-27 19:49:25,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:25,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073157634] [2024-11-27 19:49:25,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:25,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:25,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 19:49:25,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073157634] [2024-11-27 19:49:25,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073157634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:49:25,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843375473] [2024-11-27 19:49:25,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:25,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:49:25,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:25,923 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:49:25,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:49:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:25,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:49:25,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:49:25,963 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:49:25,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843375473] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:49:25,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:49:25,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-27 19:49:25,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517362071] [2024-11-27 19:49:25,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:49:25,982 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 19:49:25,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:25,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1456177, now seen corresponding path program 1 times [2024-11-27 19:49:25,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:25,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082594079] [2024-11-27 19:49:25,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:25,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:26,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 19:49:26,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082594079] [2024-11-27 19:49:26,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082594079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:49:26,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221982485] [2024-11-27 19:49:26,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:26,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:49:26,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:26,023 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:49:26,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 19:49:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:26,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:49:26,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:49:26,061 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:49:26,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221982485] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:49:26,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:49:26,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1, 1, 1] total 1 [2024-11-27 19:49:26,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447578943] [2024-11-27 19:49:26,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:49:26,077 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 19:49:26,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 19:49:26,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:26,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:26,081 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2024-11-27 19:49:26,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:26,113 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2024-11-27 19:49:26,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2024-11-27 19:49:26,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-27 19:49:26,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 16 states and 20 transitions. [2024-11-27 19:49:26,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-27 19:49:26,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-27 19:49:26,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2024-11-27 19:49:26,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 19:49:26,115 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-27 19:49:26,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2024-11-27 19:49:26,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-27 19:49:26,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:49:26,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2024-11-27 19:49:26,118 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-11-27 19:49:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:26,121 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-11-27 19:49:26,121 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 19:49:26,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2024-11-27 19:49:26,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-27 19:49:26,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:49:26,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:49:26,124 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-11-27 19:49:26,125 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-11-27 19:49:26,125 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0;" "assume main_~x~0#1 > 0;" "assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume main_~x~0#1 > 0;" "assume 1 == main_~y~0#1;" [2024-11-27 19:49:26,125 INFO L749 eck$LassoCheckResult]: Loop: "assume 0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1;main_#t~bitwise1#1 := 1 + main_~y~0#1;" "main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume main_~x~0#1 > 0;" "assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume main_~x~0#1 > 0;" "assume 1 == main_~y~0#1;" [2024-11-27 19:49:26,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:26,126 INFO L85 PathProgramCache]: Analyzing trace with hash 889617182, now seen corresponding path program 1 times [2024-11-27 19:49:26,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:26,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592013760] [2024-11-27 19:49:26,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:26,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,139 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:49:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:49:26,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:26,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1399400774, now seen corresponding path program 1 times [2024-11-27 19:49:26,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:26,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677733520] [2024-11-27 19:49:26,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:26,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:26,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 19:49:26,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677733520] [2024-11-27 19:49:26,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677733520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:49:26,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609095299] [2024-11-27 19:49:26,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:26,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:49:26,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:26,261 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:49:26,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 19:49:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:26,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:49:26,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:49:26,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:49:26,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-27 19:49:26,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609095299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:49:26,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:49:26,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-27 19:49:26,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249888217] [2024-11-27 19:49:26,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:49:26,390 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 19:49:26,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 19:49:26,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:49:26,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:49:26,392 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:49:26,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:26,434 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2024-11-27 19:49:26,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2024-11-27 19:49:26,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:49:26,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 14 transitions. [2024-11-27 19:49:26,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-27 19:49:26,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-27 19:49:26,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2024-11-27 19:49:26,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 19:49:26,436 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-11-27 19:49:26,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2024-11-27 19:49:26,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-27 19:49:26,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:49:26,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2024-11-27 19:49:26,440 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-11-27 19:49:26,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:49:26,441 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-11-27 19:49:26,441 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 19:49:26,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2024-11-27 19:49:26,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:49:26,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:49:26,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:49:26,442 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-11-27 19:49:26,442 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-27 19:49:26,442 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~bitwise1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0;" "assume main_~x~0#1 > 0;" "assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume main_~x~0#1 > 0;" "assume 1 == main_~y~0#1;" [2024-11-27 19:49:26,443 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1);" "assume !(0 == 1 + main_~y~0#1);" "havoc main_#t~bitwise1#1;assume (((((main_~y~0#1 < 0 && 1 + main_~y~0#1 >= 0) || main_#t~bitwise1#1 >= 1 + main_~y~0#1) && ((main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~bitwise1#1 >= main_~y~0#1)) && ((main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~bitwise1#1 <= main_~y~0#1 + (1 + main_~y~0#1))) && ((main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~bitwise1#1 < 0)) && main_#t~bitwise1#1 <= 2147483647;" "main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume main_~x~0#1 > 0;" "assume 1 == main_~y~0#1;" [2024-11-27 19:49:26,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:26,443 INFO L85 PathProgramCache]: Analyzing trace with hash 889617182, now seen corresponding path program 2 times [2024-11-27 19:49:26,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:26,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218347561] [2024-11-27 19:49:26,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:26,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,457 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:49:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:49:26,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:26,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1454393038, now seen corresponding path program 1 times [2024-11-27 19:49:26,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:26,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802577851] [2024-11-27 19:49:26,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:26,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,482 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:49:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:49:26,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:26,496 INFO L85 PathProgramCache]: Analyzing trace with hash -876398549, now seen corresponding path program 1 times [2024-11-27 19:49:26,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:49:26,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330751090] [2024-11-27 19:49:26,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:26,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,505 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:49:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:49:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,670 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:49:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:49:26,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 07:49:26 BoogieIcfgContainer [2024-11-27 19:49:26,690 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 19:49:26,690 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:49:26,691 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:49:26,691 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:49:26,695 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:49:24" (3/4) ... [2024-11-27 19:49:26,697 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 19:49:26,698 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:49:26,701 INFO L158 Benchmark]: Toolchain (without parser) took 2668.53ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 101.4MB in the end (delta: 16.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-11-27 19:49:26,702 INFO L158 Benchmark]: CDTParser took 1.15ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:49:26,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.19ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 107.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:49:26,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.80ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 106.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:49:26,703 INFO L158 Benchmark]: Boogie Preprocessor took 44.59ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.8MB in the end (delta: 999.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:49:26,703 INFO L158 Benchmark]: RCFGBuilder took 262.81ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 97.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:49:26,703 INFO L158 Benchmark]: BuchiAutomizer took 2086.32ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 101.4MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:49:26,703 INFO L158 Benchmark]: Witness Printer took 7.62ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 101.4MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:49:26,705 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.19ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 107.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.80ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 106.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.59ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.8MB in the end (delta: 999.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 262.81ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 97.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2086.32ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 101.4MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.62ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 101.4MB in the end (delta: 27.1kB). 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 (2 trivial, 1 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function x and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:2. 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 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 28 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf137 smp100 tf109 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: y|(y+1) [21] (Reason bitwiseOr) Lasso 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~bitwise1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0;" "assume main_~x~0#1 > 0;" "assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume main_~x~0#1 > 0;" "assume 1 == main_~y~0#1;" Loop: "assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1);" "assume !(0 == 1 + main_~y~0#1);" "havoc main_#t~bitwise1#1;assume (((((main_~y~0#1 < 0 && 1 + main_~y~0#1 >= 0) || main_#t~bitwise1#1 >= 1 + main_~y~0#1) && ((main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~bitwise1#1 >= main_~y~0#1)) && ((main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~bitwise1#1 <= main_~y~0#1 + (1 + main_~y~0#1))) && ((main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~bitwise1#1 < 0)) && main_#t~bitwise1#1 <= 2147483647;" "main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume main_~x~0#1 > 0;" "assume 1 == main_~y~0#1;" RESULT: Ultimate could not prove your program: unable to determine termination [2024-11-27 19:49:26,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 19:49:26,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 19:49:27,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 19:49:27,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b155d6bd-c94a-49c2-a442-e28fa4a904e3/bin/uautomizer-verify-aQ6SnzHsRB/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN