./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 48a181b038aedc542d8dd67e9df1c8da9ee8e55dca7e559de86c1fa08b20b29f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:59:35,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:59:35,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:59:35,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:59:35,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:59:35,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:59:36,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:59:36,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:59:36,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:59:36,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:59:36,009 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:59:36,010 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:59:36,010 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:59:36,012 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:59:36,013 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:59:36,013 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:59:36,014 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:59:36,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:59:36,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:59:36,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:59:36,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:59:36,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:59:36,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:59:36,020 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:59:36,020 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:59:36,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:59:36,021 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:59:36,022 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:59:36,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:59:36,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:59:36,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:59:36,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:59:36,025 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:59:36,026 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_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48a181b038aedc542d8dd67e9df1c8da9ee8e55dca7e559de86c1fa08b20b29f [2023-11-06 22:59:36,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:59:36,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:59:36,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:59:36,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:59:36,411 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:59:36,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-restricted-15/PastaB4.c [2023-11-06 22:59:39,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:59:40,193 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:59:40,194 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/sv-benchmarks/c/termination-restricted-15/PastaB4.c [2023-11-06 22:59:40,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/data/995dda32b/54bcc3be79224bb79025e4e05745dcfd/FLAG64ded4d39 [2023-11-06 22:59:40,228 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/data/995dda32b/54bcc3be79224bb79025e4e05745dcfd [2023-11-06 22:59:40,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:59:40,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:59:40,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:40,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:59:40,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:59:40,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@309e36b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40, skipping insertion in model container [2023-11-06 22:59:40,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,336 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:59:40,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:40,598 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:59:40,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:40,625 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:59:40,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40 WrapperNode [2023-11-06 22:59:40,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:40,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:40,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:59:40,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:59:40,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,662 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-11-06 22:59:40,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:40,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:59:40,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:59:40,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:59:40,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,683 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:59:40,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:59:40,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:59:40,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:59:40,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (1/1) ... [2023-11-06 22:59:40,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:40,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:40,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:40,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:59:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:59:40,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:59:40,855 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:59:40,858 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:59:40,925 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:59:40,948 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:59:40,950 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:59:40,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:40 BoogieIcfgContainer [2023-11-06 22:59:40,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:59:40,955 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:59:40,956 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:59:40,960 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:59:40,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:59:40,962 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:59:40" (1/3) ... [2023-11-06 22:59:40,963 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@590e78f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:59:40, skipping insertion in model container [2023-11-06 22:59:40,964 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:59:40,965 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40" (2/3) ... [2023-11-06 22:59:40,967 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@590e78f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:59:40, skipping insertion in model container [2023-11-06 22:59:40,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:59:40,968 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:40" (3/3) ... [2023-11-06 22:59:40,970 INFO L332 chiAutomizerObserver]: Analyzing ICFG PastaB4.c [2023-11-06 22:59:41,038 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:59:41,039 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:59:41,039 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:59:41,039 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:59:41,039 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:59:41,039 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:59:41,039 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:59:41,040 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:59:41,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:41,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:59:41,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:59:41,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:59:41,066 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:59:41,066 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:59:41,066 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:59:41,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:41,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:59:41,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:59:41,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:59:41,069 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:59:41,069 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:59:41,078 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~t~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~t~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2#L12-2true [2023-11-06 22:59:41,079 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~x~0#1 > main_~y~0#1);main_~t~0#1 := main_~x~0#1;main_~x~0#1 := main_~y~0#1;main_~y~0#1 := main_~t~0#1; 2#L12-2true [2023-11-06 22:59:41,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:41,086 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:59:41,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:41,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169638331] [2023-11-06 22:59:41,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:41,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:41,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:59:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:41,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:59:41,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:41,198 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-11-06 22:59:41,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:41,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198769555] [2023-11-06 22:59:41,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:41,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:41,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:59:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:41,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:59:41,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:41,232 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-06 22:59:41,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:41,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156877415] [2023-11-06 22:59:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:41,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:41,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:59:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:41,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:59:41,356 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:59:41,357 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:59:41,357 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:59:41,357 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:59:41,358 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:59:41,358 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:41,358 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:59:41,358 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:59:41,358 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB4.c_Iteration1_Loop [2023-11-06 22:59:41,359 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:59:41,359 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:59:41,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:59:41,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:59:41,417 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:59:41,540 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:59:41,541 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:59:41,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:41,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:41,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:41,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:59:41,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:59:41,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:59:41,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:59:41,596 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:59:41,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:41,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:41,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:41,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:41,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:59:41,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:59:41,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:59:41,650 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:59:41,650 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:59:41,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:41,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:41,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:41,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:41,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:59:41,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:59:41,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:59:41,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:41,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:41,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:41,716 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:41,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:59:41,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:59:41,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:59:42,501 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:59:42,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:42,506 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:59:42,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:59:42,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:59:42,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:59:42,507 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:59:42,507 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:42,507 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:59:42,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:59:42,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB4.c_Iteration1_Loop [2023-11-06 22:59:42,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:59:42,508 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:59:42,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:59:42,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:59:42,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:59:42,646 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:59:42,651 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:59:42,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:42,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:42,657 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:42,663 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 [2023-11-06 22:59:42,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:59:42,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:59:42,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:59:42,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:59:42,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:59:42,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:59:42,682 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:59:42,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:59:42,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:42,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:42,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:42,724 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:42,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:59:42,731 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 [2023-11-06 22:59:42,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:59:42,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:59:42,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:59:42,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:59:42,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:59:42,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:59:42,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:59:42,761 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:59:42,766 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:59:42,767 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:59:42,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:42,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:42,808 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:42,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:59:42,821 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:59:42,821 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:59:42,822 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:59:42,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-06 22:59:42,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-06 22:59:42,833 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:59:42,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:42,889 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:59:42,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:42,905 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:59:42,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:42,952 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-06 22:59:42,955 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:43,024 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 17 transitions. Complement of second has 6 states. [2023-11-06 22:59:43,026 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 [2023-11-06 22:59:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:43,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-06 22:59:43,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 1 letters. [2023-11-06 22:59:43,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:59:43,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-06 22:59:43,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:59:43,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-06 22:59:43,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:59:43,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-06 22:59:43,046 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:59:43,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2023-11-06 22:59:43,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:59:43,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:59:43,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:59:43,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:59:43,052 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:59:43,052 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:59:43,052 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:59:43,052 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:59:43,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:59:43,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:59:43,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:59:43,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:59:43 BoogieIcfgContainer [2023-11-06 22:59:43,063 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:59:43,065 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:59:43,065 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:59:43,066 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:59:43,066 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:40" (3/4) ... [2023-11-06 22:59:43,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:59:43,071 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:59:43,072 INFO L158 Benchmark]: Toolchain (without parser) took 2829.54ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 52.3MB in the end (delta: 49.9MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2023-11-06 22:59:43,073 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:43,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.30ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 109.2MB in the end (delta: -7.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:59:43,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.31ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 108.0MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:59:43,083 INFO L158 Benchmark]: Boogie Preprocessor took 22.00ms. Allocated memory is still 144.7MB. Free memory was 108.0MB in the beginning and 106.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:43,084 INFO L158 Benchmark]: RCFGBuilder took 266.88ms. Allocated memory is still 144.7MB. Free memory was 106.8MB in the beginning and 98.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:59:43,085 INFO L158 Benchmark]: BuchiAutomizer took 2107.86ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 52.3MB in the end (delta: 46.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-06 22:59:43,085 INFO L158 Benchmark]: Witness Printer took 5.91ms. Allocated memory is still 144.7MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:43,095 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.30ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 109.2MB in the end (delta: -7.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.31ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 108.0MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.00ms. Allocated memory is still 144.7MB. Free memory was 108.0MB in the beginning and 106.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 266.88ms. Allocated memory is still 144.7MB. Free memory was 106.8MB in the beginning and 98.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2107.86ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 52.3MB in the end (delta: 46.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 5.91ms. Allocated memory is still 144.7MB. Free memory is still 52.3MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((-1 * y) + x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 4 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax175 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq175 hnf89 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-06 22:59:43,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-06 22:59:43,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2312a6b-25e1-4022-a831-8bcfbd9fe44e/bin/uautomizer-verify-WvqO1wxjHP/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 Writing output log to file Ultimate.log Result: TRUE