./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ --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 c5de9087a921e8aad95bc80b29f24bf9506596da18bf9b4640846346a82bb2ae --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:37:36,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:37:36,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-23 21:37:36,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:37:36,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:37:36,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:37:36,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:37:36,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:37:36,371 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:37:36,377 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:37:36,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:37:36,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:37:36,378 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:37:36,380 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 21:37:36,381 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 21:37:36,381 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 21:37:36,383 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 21:37:36,383 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 21:37:36,384 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 21:37:36,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:37:36,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 21:37:36,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:37:36,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:37:36,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 21:37:36,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 21:37:36,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 21:37:36,387 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:37:36,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:37:36,388 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 21:37:36,388 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:37:36,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:37:36,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:37:36,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:37:36,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:37:36,391 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 21:37:36,391 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5de9087a921e8aad95bc80b29f24bf9506596da18bf9b4640846346a82bb2ae [2023-11-23 21:37:36,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:37:36,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:37:36,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:37:36,716 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:37:36,717 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:37:36,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-bwb/or-04.c [2023-11-23 21:37:39,960 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:37:40,153 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:37:40,153 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/sv-benchmarks/c/termination-bwb/or-04.c [2023-11-23 21:37:40,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/data/066cba7f1/6a11a1e2aca94d09bfc10ac5fc0e2457/FLAG917181d7a [2023-11-23 21:37:40,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/data/066cba7f1/6a11a1e2aca94d09bfc10ac5fc0e2457 [2023-11-23 21:37:40,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:37:40,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:37:40,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:40,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:37:40,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:37:40,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43892b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40, skipping insertion in model container [2023-11-23 21:37:40,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,213 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:37:40,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:40,403 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:37:40,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:40,428 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:37:40,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40 WrapperNode [2023-11-23 21:37:40,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:40,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:40,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:37:40,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:37:40,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,461 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-23 21:37:40,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:40,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:37:40,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:37:40,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:37:40,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,472 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,478 INFO L189 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-23 21:37:40,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:37:40,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:37:40,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:37:40,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:37:40,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (1/1) ... [2023-11-23 21:37:40,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:40,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:40,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:40,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 21:37:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:37:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:37:40,625 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:37:40,627 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:37:40,757 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:37:40,767 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:37:40,768 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:37:40,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:40 BoogieIcfgContainer [2023-11-23 21:37:40,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:37:40,771 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 21:37:40,771 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 21:37:40,775 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 21:37:40,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:37:40,777 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 09:37:40" (1/3) ... [2023-11-23 21:37:40,778 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@772220d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:37:40, skipping insertion in model container [2023-11-23 21:37:40,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:37:40,778 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:40" (2/3) ... [2023-11-23 21:37:40,779 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@772220d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:37:40, skipping insertion in model container [2023-11-23 21:37:40,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:37:40,779 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:40" (3/3) ... [2023-11-23 21:37:40,781 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-04.c [2023-11-23 21:37:40,840 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 21:37:40,841 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 21:37:40,841 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 21:37:40,841 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 21:37:40,841 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 21:37:40,842 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 21:37:40,842 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 21:37:40,842 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 21:37:40,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:40,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-23 21:37:40,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:37:40,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:37:40,872 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:37:40,872 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:37:40,872 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 21:37:40,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:40,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-23 21:37:40,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:37:40,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:37:40,875 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:37:40,875 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:37:40,883 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L20-2true [2023-11-23 21:37:40,883 INFO L750 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 9#L21-2true assume !(0 != main_~y~0#1); 6#L20-2true [2023-11-23 21:37:40,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:40,890 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-23 21:37:40,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:40,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848348470] [2023-11-23 21:37:40,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:40,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:40,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:40,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:40,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:40,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2023-11-23 21:37:40,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:40,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956371704] [2023-11-23 21:37:40,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:40,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:41,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:41,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956371704] [2023-11-23 21:37:41,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956371704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:41,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:41,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:37:41,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122975664] [2023-11-23 21:37:41,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:41,105 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-23 21:37:41,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:41,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:41,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:41,157 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-23 21:37:41,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:41,240 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2023-11-23 21:37:41,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2023-11-23 21:37:41,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-23 21:37:41,246 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2023-11-23 21:37:41,247 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-23 21:37:41,247 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-23 21:37:41,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2023-11-23 21:37:41,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:37:41,248 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-23 21:37:41,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2023-11-23 21:37:41,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-23 21:37:41,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 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) [2023-11-23 21:37:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2023-11-23 21:37:41,281 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-23 21:37:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:41,292 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-23 21:37:41,292 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 21:37:41,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2023-11-23 21:37:41,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-23 21:37:41,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:37:41,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:37:41,295 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:37:41,295 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:41,295 INFO L748 eck$LassoCheckResult]: Stem: 40#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 38#L20-2 [2023-11-23 21:37:41,295 INFO L750 eck$LassoCheckResult]: Loop: 38#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 39#L21-2 assume !!(0 != main_~y~0#1); 37#L21 assume main_~y~0#1 > 0; 35#L22 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 36#L22-2 assume !(0 == 1 + main_~y~0#1);assume (main_~y~0#1 < 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 >= 1 + main_~y~0#1;assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 >= main_~y~0#1;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1 + (1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 42#L22-4 main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 43#L21-2 assume !(0 != main_~y~0#1); 38#L20-2 [2023-11-23 21:37:41,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:41,300 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-23 21:37:41,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:41,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622348384] [2023-11-23 21:37:41,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:41,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:41,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:41,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:41,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:41,317 INFO L85 PathProgramCache]: Analyzing trace with hash -784860095, now seen corresponding path program 1 times [2023-11-23 21:37:41,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:41,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853147689] [2023-11-23 21:37:41,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:41,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:41,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:41,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:41,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:41,349 INFO L85 PathProgramCache]: Analyzing trace with hash 761436735, now seen corresponding path program 1 times [2023-11-23 21:37:41,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:41,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697496582] [2023-11-23 21:37:41,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:41,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:41,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:41,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:41,524 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:37:41,525 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:37:41,525 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:37:41,525 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:37:41,526 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:37:41,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:41,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:37:41,526 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:37:41,527 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2023-11-23 21:37:41,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:37:41,528 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:37:41,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:37:41,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:37:41,664 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:37:41,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:41,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:41,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:41,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:37:41,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:37:41,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 21:37:41,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-23 21:37:41,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:41,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:41,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:41,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 21:37:41,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:37:41,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:37:41,804 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:37:41,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:41,811 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:37:41,811 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:37:41,812 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:37:41,812 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:37:41,812 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:37:41,812 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:41,812 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:37:41,812 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:37:41,812 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2023-11-23 21:37:41,812 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:37:41,812 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:37:41,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:37:41,899 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:37:41,904 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:37:41,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:41,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:41,910 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:41,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 21:37:41,921 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 [2023-11-23 21:37:41,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:37:41,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:37:41,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:37:41,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:37:41,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:37:41,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:37:41,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:37:41,953 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:37:41,959 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-23 21:37:41,959 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 21:37:41,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:41,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:41,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:41,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 21:37:41,985 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:37:41,986 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:37:41,986 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:37:41,987 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-23 21:37:42,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:42,020 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:37:42,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:42,140 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:42,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:42,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:37:42,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:37:42,252 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 [2023-11-23 21:37:42,254 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:42,345 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 36 transitions. Complement of second has 6 states. [2023-11-23 21:37:42,346 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 [2023-11-23 21:37:42,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:42,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-11-23 21:37:42,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 7 letters. [2023-11-23 21:37:42,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:37:42,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 7 letters. [2023-11-23 21:37:42,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:37:42,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 14 letters. [2023-11-23 21:37:42,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:37:42,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2023-11-23 21:37:42,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-23 21:37:42,361 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 36 transitions. [2023-11-23 21:37:42,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-23 21:37:42,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2023-11-23 21:37:42,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 36 transitions. [2023-11-23 21:37:42,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:37:42,363 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-11-23 21:37:42,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 36 transitions. [2023-11-23 21:37:42,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2023-11-23 21:37:42,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2023-11-23 21:37:42,369 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-11-23 21:37:42,370 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-11-23 21:37:42,370 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-23 21:37:42,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2023-11-23 21:37:42,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-23 21:37:42,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:37:42,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:37:42,375 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-23 21:37:42,376 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-23 21:37:42,376 INFO L748 eck$LassoCheckResult]: Stem: 133#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 134#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~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;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 127#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 129#L21-2 assume !!(0 != main_~y~0#1); 131#L21 assume main_~y~0#1 > 0; 123#L22 [2023-11-23 21:37:42,376 INFO L750 eck$LassoCheckResult]: Loop: 123#L22 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 124#L22-2 assume !(0 == 1 + main_~y~0#1);assume (main_~y~0#1 < 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 >= 1 + main_~y~0#1;assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 >= main_~y~0#1;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1 + (1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 137#L22-4 main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 135#L21-2 assume !!(0 != main_~y~0#1); 136#L21 assume main_~y~0#1 > 0; 123#L22 [2023-11-23 21:37:42,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:42,383 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2023-11-23 21:37:42,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:42,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772941841] [2023-11-23 21:37:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:42,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:42,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:42,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:42,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:42,408 INFO L85 PathProgramCache]: Analyzing trace with hash 55505120, now seen corresponding path program 1 times [2023-11-23 21:37:42,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:42,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247723322] [2023-11-23 21:37:42,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:42,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:42,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:42,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:42,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:42,448 INFO L85 PathProgramCache]: Analyzing trace with hash 2129702390, now seen corresponding path program 1 times [2023-11-23 21:37:42,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:42,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176151933] [2023-11-23 21:37:42,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:42,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:42,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:42,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:42,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:42,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 09:37:42 BoogieIcfgContainer [2023-11-23 21:37:42,687 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 21:37:42,688 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:37:42,688 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:37:42,688 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:37:42,688 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:40" (3/4) ... [2023-11-23 21:37:42,690 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:37:42,692 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:37:42,693 INFO L158 Benchmark]: Toolchain (without parser) took 2510.13ms. Allocated memory is still 146.8MB. Free memory was 100.9MB in the beginning and 57.2MB in the end (delta: 43.7MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2023-11-23 21:37:42,693 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:42,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.56ms. Allocated memory is still 146.8MB. Free memory was 100.9MB in the beginning and 91.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:37:42,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.19ms. Allocated memory is still 146.8MB. Free memory was 91.3MB in the beginning and 90.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:37:42,695 INFO L158 Benchmark]: Boogie Preprocessor took 26.91ms. Allocated memory is still 146.8MB. Free memory was 90.0MB in the beginning and 88.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:42,696 INFO L158 Benchmark]: RCFGBuilder took 280.30ms. Allocated memory is still 146.8MB. Free memory was 88.2MB in the beginning and 79.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:37:42,696 INFO L158 Benchmark]: BuchiAutomizer took 1916.11ms. Allocated memory is still 146.8MB. Free memory was 78.8MB in the beginning and 57.2MB in the end (delta: 21.6MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-23 21:37:42,697 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 146.8MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:42,700 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.56ms. Allocated memory is still 146.8MB. Free memory was 100.9MB in the beginning and 91.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.19ms. Allocated memory is still 146.8MB. Free memory was 91.3MB in the beginning and 90.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.91ms. Allocated memory is still 146.8MB. Free memory was 90.0MB in the beginning and 88.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 280.30ms. Allocated memory is still 146.8MB. Free memory was 88.2MB in the beginning and 79.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1916.11ms. Allocated memory is still 146.8MB. Free memory was 78.8MB in the beginning and 57.2MB in the end (delta: 21.6MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 146.8MB. Free memory is still 57.2MB. 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 15 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq144 hnf94 smp86 dnf100 smp100 tf106 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 81ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 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) [22] (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~nondet1#1, main_#t~nondet2#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;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);" "assume !!(0 != main_~y~0#1);" "assume main_~y~0#1 > 0;" Loop: "assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1);" "assume !(0 == 1 + main_~y~0#1);assume (main_~y~0#1 < 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 >= 1 + main_~y~0#1;assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 >= main_~y~0#1;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1 + (1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647;" "main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_~x~0#1 - main_~y~0#1;" "assume !!(0 != main_~y~0#1);" "assume main_~y~0#1 > 0;" RESULT: Ultimate could not prove your program: unable to determine termination [2023-11-23 21:37:42,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:42,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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_aa2a33ea-e2e8-4a76-99cc-d938e4bbb5ed/bin/uautomizer-verify-zZY32mL2XJ/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