./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu --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 c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:12,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:12,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:59:12,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:12,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:12,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:12,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:12,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:12,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:12,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:12,809 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:12,809 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:59:12,810 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:59:12,811 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:59:12,811 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:59:12,812 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:59:12,812 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:59:12,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:12,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:59:12,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:12,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:12,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:59:12,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:59:12,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:59:12,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:59:12,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:12,819 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:59:12,819 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:12,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:12,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:12,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:12,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:12,823 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:59:12,823 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_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb [2023-11-19 07:59:13,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:13,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:13,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:13,201 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:13,201 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:13,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2023-11-19 07:59:16,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:16,463 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:16,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2023-11-19 07:59:16,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/data/771b9b4de/dcf9d8d101124ce7abc74b826c4b09e9/FLAG0d1888326 [2023-11-19 07:59:16,517 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/data/771b9b4de/dcf9d8d101124ce7abc74b826c4b09e9 [2023-11-19 07:59:16,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:16,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:16,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:16,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:16,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:16,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec2eead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16, skipping insertion in model container [2023-11-19 07:59:16,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,563 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:16,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:16,759 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:16,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:16,784 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:16,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16 WrapperNode [2023-11-19 07:59:16,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:16,785 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:16,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:16,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:16,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,819 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-11-19 07:59:16,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:16,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:16,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:16,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:16,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,831 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:16,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:16,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:16,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:16,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:16,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:16,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:16,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:17,019 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:17,022 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:17,096 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:17,103 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:17,103 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:59:17,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:17 BoogieIcfgContainer [2023-11-19 07:59:17,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:17,109 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:59:17,109 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:59:17,116 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:59:17,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:59:17,117 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:59:16" (1/3) ... [2023-11-19 07:59:17,119 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4416e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:59:17, skipping insertion in model container [2023-11-19 07:59:17,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:59:17,119 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (2/3) ... [2023-11-19 07:59:17,119 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4416e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:59:17, skipping insertion in model container [2023-11-19 07:59:17,120 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:59:17,120 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:17" (3/3) ... [2023-11-19 07:59:17,121 INFO L332 chiAutomizerObserver]: Analyzing ICFG Nyala-2lex-2.c [2023-11-19 07:59:17,191 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:59:17,191 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:59:17,192 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:59:17,192 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:59:17,192 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:59:17,192 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:59:17,194 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:59:17,195 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:59:17,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-11-19 07:59:17,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:59:17,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:59:17,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:59:17,224 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:59:17,224 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:59:17,224 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:59:17,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-11-19 07:59:17,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:59:17,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:59:17,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:59:17,228 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:59:17,228 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:59:17,237 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L21-2true [2023-11-19 07:59:17,238 INFO L750 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 5#L21true assume !(main_~y~0#1 < 0); 7#L21-2true [2023-11-19 07:59:17,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:59:17,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:17,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788305197] [2023-11-19 07:59:17,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:17,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:17,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:17,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:17,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:17,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-19 07:59:17,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:17,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825944566] [2023-11-19 07:59:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:17,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:17,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:17,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:17,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:17,394 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-19 07:59:17,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:17,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808340770] [2023-11-19 07:59:17,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:17,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:17,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:17,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:17,547 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:59:17,548 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:59:17,548 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:59:17,548 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:59:17,549 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:59:17,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:17,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:59:17,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:59:17,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration1_Loop [2023-11-19 07:59:17,550 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:59:17,550 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:59:17,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:17,597 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:17,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:17,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:17,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:59:17,710 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:59:17,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:17,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:17,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:17,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:17,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:17,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:59:17,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:59:17,754 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: [] [2023-11-19 07:59:17,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:17,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:17,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:17,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:17,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:59:17,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:17,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:17,807 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:59:17,807 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: [] [2023-11-19 07:59:17,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:17,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:17,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:17,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:17,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:59:17,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:17,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:17,854 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:59:17,854 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:59:17,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:17,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:17,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:17,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:17,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:59:17,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:17,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:17,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:17,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:17,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:17,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:17,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:59:17,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:17,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:59:17,997 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:59:18,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:18,000 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:59:18,000 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:59:18,000 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:59:18,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:59:18,001 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:59:18,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:59:18,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:59:18,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration1_Loop [2023-11-19 07:59:18,001 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:59:18,001 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:59:18,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:18,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:18,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:18,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:18,069 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:59:18,073 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:59:18,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:18,076 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,083 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 [2023-11-19 07:59:18,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:18,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:18,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:18,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:18,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:59:18,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:59:18,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:59:18,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:59:18,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:18,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:18,155 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,158 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 [2023-11-19 07:59:18,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:59:18,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:18,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:18,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:18,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:18,173 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:59:18,173 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:59:18,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:59:18,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-19 07:59:18,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:18,203 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:59:18,204 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 [2023-11-19 07:59:18,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:18,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:59:18,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:18,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:18,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:18,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:59:18,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:59:18,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:59:18,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:18,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:18,254 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,263 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 [2023-11-19 07:59:18,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:18,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:59:18,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:18,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:18,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:18,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:59:18,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:59:18,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:59:18,287 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:59:18,290 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:59:18,290 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:59:18,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:18,331 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,339 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:59:18,339 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:59:18,339 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:59:18,339 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 [] [2023-11-19 07:59:18,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:59:18,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:18,366 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:59:18,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:18,405 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:59:18,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:18,423 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:18,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:18,524 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 [2023-11-19 07:59:18,526 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:18,574 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 31 transitions. Complement of second has 6 states. [2023-11-19 07:59:18,576 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 [2023-11-19 07:59:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:18,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-19 07:59:18,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-19 07:59:18,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:18,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-19 07:59:18,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:18,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:59:18,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:18,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2023-11-19 07:59:18,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:59:18,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 8 states and 10 transitions. [2023-11-19 07:59:18,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-19 07:59:18,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-19 07:59:18,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2023-11-19 07:59:18,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:18,594 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-19 07:59:18,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2023-11-19 07:59:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-11-19 07:59:18,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2023-11-19 07:59:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-11-19 07:59:18,619 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-19 07:59:18,619 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-19 07:59:18,619 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:59:18,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2023-11-19 07:59:18,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:59:18,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:59:18,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:59:18,654 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 07:59:18,655 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:59:18,655 INFO L748 eck$LassoCheckResult]: Stem: 70#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 71#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_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~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; 72#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 68#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 67#L21-2 [2023-11-19 07:59:18,655 INFO L750 eck$LassoCheckResult]: Loop: 67#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 66#L21 assume !(main_~y~0#1 < 0); 67#L21-2 [2023-11-19 07:59:18,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:18,656 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-19 07:59:18,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:18,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537869899] [2023-11-19 07:59:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:18,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:18,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:18,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:18,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-11-19 07:59:18,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:18,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803885312] [2023-11-19 07:59:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:18,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:18,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:18,681 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:18,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:18,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:18,697 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-11-19 07:59:18,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:18,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180780333] [2023-11-19 07:59:18,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:18,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:18,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:18,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:18,741 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:59:18,741 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:59:18,741 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:59:18,741 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:59:18,741 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:59:18,741 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:59:18,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:59:18,742 INFO L133 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration2_Loop [2023-11-19 07:59:18,742 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:59:18,742 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:59:18,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:18,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:18,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:18,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:18,796 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:59:18,796 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:59:18,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:18,798 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:18,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:18,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:59:18,831 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:59:18,831 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:59:18,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:18,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:18,859 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:59:18,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:18,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:18,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:18,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:18,907 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:59:18,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:59:18,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:18,986 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:59:18,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:18,990 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:59:18,990 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:59:18,990 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:59:18,990 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:59:18,990 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:59:18,990 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:18,990 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:59:18,990 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:59:18,990 INFO L133 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration2_Loop [2023-11-19 07:59:18,991 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:59:18,991 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:59:18,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:18,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,048 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:59:19,048 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:59:19,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:19,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:19,049 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:19,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:59:19,062 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 [2023-11-19 07:59:19,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:19,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:19,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:19,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:19,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:59:19,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:59:19,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:59:19,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:19,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:19,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:19,123 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:19,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 07:59:19,134 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 [2023-11-19 07:59:19,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:19,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:59:19,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:19,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:19,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:19,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:59:19,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:59:19,165 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:59:19,168 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:59:19,168 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:59:19,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:19,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:19,169 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:19,176 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:59:19,177 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:59:19,177 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:59:19,177 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 [] [2023-11-19 07:59:19,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 07:59:19,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:19,201 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:59:19,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:59:19,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,237 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:19,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:19,263 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 [2023-11-19 07:59:19,263 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:19,281 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 15 transitions. Complement of second has 5 states. [2023-11-19 07:59:19,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:59:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:19,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-19 07:59:19,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-19 07:59:19,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:19,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:59:19,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:19,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-19 07:59:19,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:19,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2023-11-19 07:59:19,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:59:19,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2023-11-19 07:59:19,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-19 07:59:19,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-19 07:59:19,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2023-11-19 07:59:19,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:19,286 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-19 07:59:19,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2023-11-19 07:59:19,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-19 07:59:19,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2023-11-19 07:59:19,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-19 07:59:19,291 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:59:19,292 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:59:19,292 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:59:19,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-19 07:59:19,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:59:19,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:59:19,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:59:19,294 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2023-11-19 07:59:19,294 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:59:19,294 INFO L748 eck$LassoCheckResult]: Stem: 127#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 130#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 131#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 129#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 125#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 124#L21-2 [2023-11-19 07:59:19,294 INFO L750 eck$LassoCheckResult]: Loop: 124#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 123#L21 assume !(main_~y~0#1 < 0); 124#L21-2 [2023-11-19 07:59:19,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:19,295 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2023-11-19 07:59:19,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:19,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113239563] [2023-11-19 07:59:19,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:19,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:19,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:19,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:19,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:19,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-11-19 07:59:19,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:19,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266045191] [2023-11-19 07:59:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:19,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:19,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:19,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:19,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:19,318 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2023-11-19 07:59:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:19,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952548087] [2023-11-19 07:59:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:19,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:19,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:19,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:19,389 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:59:19,389 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:59:19,389 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:59:19,389 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:59:19,389 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:59:19,389 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:19,390 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:59:19,390 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:59:19,390 INFO L133 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration3_Loop [2023-11-19 07:59:19,390 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:59:19,390 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:59:19,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,440 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:59:19,440 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:59:19,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:19,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:19,441 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:19,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:19,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:19,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 07:59:19,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:19,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:19,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:19,500 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:19,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:59:19,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:19,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 07:59:19,610 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:59:19,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:19,614 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:59:19,614 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:59:19,614 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:59:19,614 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:59:19,614 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:59:19,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:19,615 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:59:19,615 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:59:19,615 INFO L133 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration3_Loop [2023-11-19 07:59:19,615 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:59:19,615 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:59:19,616 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,622 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:19,682 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:59:19,683 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:59:19,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:19,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:19,684 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:19,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-19 07:59:19,695 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 [2023-11-19 07:59:19,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:19,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:59:19,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:19,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:19,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:19,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:59:19,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:59:19,716 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:59:19,722 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:59:19,722 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:59:19,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:19,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:19,730 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:19,736 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:59:19,736 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:59:19,736 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:59:19,736 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 [] [2023-11-19 07:59:19,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-19 07:59:19,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:19,759 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:59:19,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:59:19,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,811 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:19,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:19,824 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 [2023-11-19 07:59:19,824 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:19,843 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 15 transitions. Complement of second has 5 states. [2023-11-19 07:59:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:59:19,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:19,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-19 07:59:19,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:59:19,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:19,846 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:59:19,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:59:19,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,884 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:19,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:19,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:19,898 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:59:19,898 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:19,914 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2023-11-19 07:59:19,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:59:19,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-19 07:59:19,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:59:19,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:19,918 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:59:19,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:59:19,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,968 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:19,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:19,980 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:59:19,981 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:19,996 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 5 states. [2023-11-19 07:59:19,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:59:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:20,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-19 07:59:20,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:59:20,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:20,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-19 07:59:20,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:20,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 07:59:20,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:20,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2023-11-19 07:59:20,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:59:20,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 16 transitions. [2023-11-19 07:59:20,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-19 07:59:20,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-19 07:59:20,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2023-11-19 07:59:20,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:20,009 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-19 07:59:20,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2023-11-19 07:59:20,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2023-11-19 07:59:20,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2023-11-19 07:59:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-19 07:59:20,013 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:59:20,013 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:59:20,013 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:59:20,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-19 07:59:20,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:59:20,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:59:20,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:59:20,016 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2023-11-19 07:59:20,016 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:59:20,016 INFO L748 eck$LassoCheckResult]: Stem: 278#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 279#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_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~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; 281#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 275#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 277#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 280#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 274#L21-2 [2023-11-19 07:59:20,016 INFO L750 eck$LassoCheckResult]: Loop: 274#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 272#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 274#L21-2 [2023-11-19 07:59:20,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:20,017 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 3 times [2023-11-19 07:59:20,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:20,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927579227] [2023-11-19 07:59:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:20,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:20,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:20,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:20,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:20,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2023-11-19 07:59:20,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:20,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166031755] [2023-11-19 07:59:20,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:20,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:20,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:20,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:20,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:20,073 INFO L85 PathProgramCache]: Analyzing trace with hash 295744364, now seen corresponding path program 4 times [2023-11-19 07:59:20,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:20,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173291258] [2023-11-19 07:59:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:20,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:20,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:20,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:20,138 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:59:20,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:59:20,138 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:59:20,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:59:20,138 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:59:20,139 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,139 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:59:20,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:59:20,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration4_Loop [2023-11-19 07:59:20,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:59:20,139 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:59:20,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,149 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,205 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:59:20,206 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:59:20,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,210 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 07:59:20,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:20,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:20,238 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:59:20,238 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:59:20,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,264 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:20,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:20,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 07:59:20,293 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:59:20,293 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:59:20,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:20,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,314 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:20,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:20,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-19 07:59:20,346 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:59:20,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:59:20,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:20,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,371 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:20,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:20,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-19 07:59:20,395 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:59:20,395 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:59:20,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:20,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,415 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:59:20,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:20,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-19 07:59:20,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-19 07:59:20,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,464 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:59:20,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:59:20,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 07:59:20,507 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:59:20,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-19 07:59:20,510 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:59:20,510 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:59:20,510 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:59:20,510 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:59:20,510 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:59:20,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:59:20,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:59:20,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration4_Loop [2023-11-19 07:59:20,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:59:20,511 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:59:20,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,521 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:59:20,587 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:59:20,587 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:59:20,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,588 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 07:59:20,591 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 [2023-11-19 07:59:20,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:20,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:59:20,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:20,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:20,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:20,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:59:20,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:59:20,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:59:20,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-19 07:59:20,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,631 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-19 07:59:20,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:20,667 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 [2023-11-19 07:59:20,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:20,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:20,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:20,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:20,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:59:20,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:59:20,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:59:20,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-19 07:59:20,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:20,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,720 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,726 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 [2023-11-19 07:59:20,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:20,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:20,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:20,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:20,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:59:20,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:59:20,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-19 07:59:20,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:59:20,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:20,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,782 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,785 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 [2023-11-19 07:59:20,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:20,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:59:20,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:20,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:20,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:20,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:59:20,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:59:20,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-19 07:59:20,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:59:20,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:20,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,833 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-19 07:59:20,835 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 [2023-11-19 07:59:20,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:59:20,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:59:20,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:59:20,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:59:20,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:59:20,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:59:20,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:59:20,858 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:59:20,861 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:59:20,861 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:59:20,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:20,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,863 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,865 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:59:20,865 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:59:20,865 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:59:20,865 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-11-19 07:59:20,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-19 07:59:20,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:20,890 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:59:20,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:20,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:59:20,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:20,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:20,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:20,976 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 [2023-11-19 07:59:20,977 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:21,011 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 4 states. [2023-11-19 07:59:21,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:59:21,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:21,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-19 07:59:21,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:59:21,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:21,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-19 07:59:21,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:21,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 07:59:21,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:59:21,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2023-11-19 07:59:21,017 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:59:21,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2023-11-19 07:59:21,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:59:21,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:59:21,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:59:21,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:21,018 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:59:21,018 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:59:21,018 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:59:21,018 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:59:21,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:59:21,019 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:59:21,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:59:21,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:59:21 BoogieIcfgContainer [2023-11-19 07:59:21,038 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:59:21,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:59:21,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:59:21,039 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:59:21,039 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:17" (3/4) ... [2023-11-19 07:59:21,042 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:59:21,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:59:21,043 INFO L158 Benchmark]: Toolchain (without parser) took 4517.43ms. Allocated memory was 148.9MB in the beginning and 209.7MB in the end (delta: 60.8MB). Free memory was 120.7MB in the beginning and 162.9MB in the end (delta: -42.2MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:21,044 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 121.6MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:21,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.94ms. Allocated memory is still 148.9MB. Free memory was 120.1MB in the beginning and 111.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:59:21,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.86ms. Allocated memory is still 148.9MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:21,045 INFO L158 Benchmark]: Boogie Preprocessor took 22.62ms. Allocated memory is still 148.9MB. Free memory was 109.7MB in the beginning and 108.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:21,049 INFO L158 Benchmark]: RCFGBuilder took 264.41ms. Allocated memory is still 148.9MB. Free memory was 108.6MB in the beginning and 99.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:59:21,049 INFO L158 Benchmark]: BuchiAutomizer took 3929.13ms. Allocated memory was 148.9MB in the beginning and 209.7MB in the end (delta: 60.8MB). Free memory was 99.6MB in the beginning and 162.9MB in the end (delta: -63.4MB). Peak memory consumption was 212.8kB. Max. memory is 16.1GB. [2023-11-19 07:59:21,050 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 209.7MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:21,054 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 121.6MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.94ms. Allocated memory is still 148.9MB. Free memory was 120.1MB in the beginning and 111.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.86ms. Allocated memory is still 148.9MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.62ms. Allocated memory is still 148.9MB. Free memory was 109.7MB in the beginning and 108.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 264.41ms. Allocated memory is still 148.9MB. Free memory was 108.6MB in the beginning and 99.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3929.13ms. Allocated memory was 148.9MB in the beginning and 209.7MB in the end (delta: 60.8MB). Free memory was 99.6MB in the beginning and 162.9MB in the end (delta: -63.4MB). Peak memory consumption was 212.8kB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 209.7MB. Free memory is still 162.9MB. 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. One deterministic module has affine ranking function ((2 * x) + 1) and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 30 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:59:21,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:21,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcf8688-45fd-4fd0-b55b-9c6f1abb15ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE