./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/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_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/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_c240493c-ef73-444a-ab66-a26b291e2d2d/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 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:45,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:45,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:37:45,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:45,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:45,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:45,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:45,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:45,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:45,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:45,661 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:45,662 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:37:45,663 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:37:45,663 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:37:45,664 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:37:45,665 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:37:45,666 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:37:45,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:45,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:37:45,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:45,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:45,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:37:45,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:37:45,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:37:45,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:37:45,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:45,673 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:37:45,674 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:45,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:45,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:45,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:45,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:45,677 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:37:45,678 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_c240493c-ef73-444a-ab66-a26b291e2d2d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 [2023-11-19 07:37:45,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:45,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:45,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:45,987 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:45,988 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:45,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2023-11-19 07:37:49,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:49,372 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:49,373 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2023-11-19 07:37:49,386 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/data/dd9efd736/ea1c88e459e040a6af6bc57b00f10652/FLAG9e4af0ce2 [2023-11-19 07:37:49,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/data/dd9efd736/ea1c88e459e040a6af6bc57b00f10652 [2023-11-19 07:37:49,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:49,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:49,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:49,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:49,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:49,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7209d76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49, skipping insertion in model container [2023-11-19 07:37:49,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,463 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:49,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:49,666 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:49,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:49,702 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:49,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49 WrapperNode [2023-11-19 07:37:49,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:49,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:49,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:49,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:49,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,746 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2023-11-19 07:37:49,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:49,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:49,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:49,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:49,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,761 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:49,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:49,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:49,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:49,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (1/1) ... [2023-11-19 07:37:49,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:49,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:49,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:49,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:49,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:49,966 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:49,969 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:50,076 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:50,085 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:50,086 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:37:50,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:50 BoogieIcfgContainer [2023-11-19 07:37:50,090 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:50,091 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:37:50,091 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:37:50,096 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:37:50,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:37:50,100 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:37:49" (1/3) ... [2023-11-19 07:37:50,102 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c9540b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:37:50, skipping insertion in model container [2023-11-19 07:37:50,102 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:37:50,102 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:49" (2/3) ... [2023-11-19 07:37:50,104 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c9540b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:37:50, skipping insertion in model container [2023-11-19 07:37:50,105 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:37:50,106 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:50" (3/3) ... [2023-11-19 07:37:50,108 INFO L332 chiAutomizerObserver]: Analyzing ICFG Cairo_step2-1.c [2023-11-19 07:37:50,189 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:37:50,189 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:37:50,189 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:37:50,190 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:37:50,190 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:37:50,190 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:37:50,193 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:37:50,193 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:37:50,199 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 07:37:50,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:37:50,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:37:50,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:37:50,229 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:37:50,229 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:37:50,229 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:37:50,230 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 07:37:50,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:37:50,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:37:50,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:37:50,232 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:37:50,232 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:37:50,242 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L15true assume main_~x~0#1 > 0; 6#L16-2true [2023-11-19 07:37:50,242 INFO L750 eck$LassoCheckResult]: Loop: 6#L16-2true assume !!(0 != main_~x~0#1 && -1 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 2; 6#L16-2true [2023-11-19 07:37:50,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:50,250 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-19 07:37:50,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:50,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451973886] [2023-11-19 07:37:50,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:50,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:50,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:50,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:50,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:50,412 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2023-11-19 07:37:50,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:50,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123447054] [2023-11-19 07:37:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:50,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:50,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:50,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:50,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:50,462 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2023-11-19 07:37:50,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:50,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826768276] [2023-11-19 07:37:50,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:50,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:50,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:50,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:50,639 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:50,640 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:50,640 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:50,640 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:50,640 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:37:50,641 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:50,641 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:50,641 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:50,641 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Loop [2023-11-19 07:37:50,641 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:50,642 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:50,665 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 07:37:50,691 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 07:37:50,719 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 07:37:50,841 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:50,842 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:37:50,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:50,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:50,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:50,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:50,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:50,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:37:50,888 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:50,888 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 07:37:50,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:50,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:50,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:50,914 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:50,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:50,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:50,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:37:50,961 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:50,961 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 07:37:50,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:50,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:50,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:50,987 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:50,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:50,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:51,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:37:51,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,050 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:37:51,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:37:51,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:51,093 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:51,093 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [0, 1, 1] Nus: [1, 0] [2023-11-19 07:37:51,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,124 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:51,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:51,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:51,125 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:51,125 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:37:51,125 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,126 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:51,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:51,126 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2023-11-19 07:37:51,126 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:51,126 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:51,129 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 07:37:51,133 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 07:37:51,137 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 07:37:51,140 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 07:37:51,158 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 07:37:51,275 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:51,275 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:37:51,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,277 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:51,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:51,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:37:51,325 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:51,326 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:51,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,347 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:37:51,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:51,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:51,378 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:51,379 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:51,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,396 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:37:51,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:51,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:51,425 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:51,425 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:51,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,452 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:37:51,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:51,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:51,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,503 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:37:51,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:51,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:37:51,581 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:37:51,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,591 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:51,591 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:51,591 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:51,591 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:51,591 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:37:51,591 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,591 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:51,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:51,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2023-11-19 07:37:51,592 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:51,592 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:51,595 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 07:37:51,598 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 07:37:51,602 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 07:37:51,606 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 07:37:51,621 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 07:37:51,730 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:51,736 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:37:51,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,741 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,755 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 07:37:51,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:51,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:51,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:51,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:51,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:51,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:51,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:37:51,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:51,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,812 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,822 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 07:37:51,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:51,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:51,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:51,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:51,839 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:51,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:51,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:37:51,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:51,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,881 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,884 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 07:37:51,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:37:51,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:51,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:37:51,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:51,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:51,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:51,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:37:51,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:37:51,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:51,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:51,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:51,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:51,918 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:51,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:37:51,920 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 07:37:51,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:51,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:51,931 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:37:51,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:51,952 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-19 07:37:51,952 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-19 07:37:52,006 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:37:52,035 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-11-19 07:37:52,035 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-11-19 07:37:52,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:52,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:52,070 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:52,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:37:52,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:37:52,100 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-11-19 07:37:52,100 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:37:52,101 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 + 1 >= 0] [2023-11-19 07:37:52,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:52,126 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-19 07:37:52,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:52,189 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:37:52,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:52,207 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:37:52,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:52,209 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 07:37:52,253 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 07:37:52,255 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:52,326 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 22 transitions. Complement of second has 6 states. [2023-11-19 07:37:52,328 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 07:37:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-19 07:37:52,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-19 07:37:52,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:52,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-19 07:37:52,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:52,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-19 07:37:52,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:52,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2023-11-19 07:37:52,344 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:37:52,347 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2023-11-19 07:37:52,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:37:52,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:37:52,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:37:52,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:52,353 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:37:52,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:37:52,353 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:37:52,353 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:37:52,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:37:52,361 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:37:52,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:37:52,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:37:52 BoogieIcfgContainer [2023-11-19 07:37:52,370 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:37:52,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:37:52,371 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:37:52,372 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:37:52,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:50" (3/4) ... [2023-11-19 07:37:52,374 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:37:52,375 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:37:52,381 INFO L158 Benchmark]: Toolchain (without parser) took 2956.62ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 89.6MB in the beginning and 95.4MB in the end (delta: -5.8MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:52,382 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 136.3MB. Free memory is still 108.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:52,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.27ms. Allocated memory is still 136.3MB. Free memory was 89.6MB in the beginning and 80.2MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:37:52,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.15ms. Allocated memory is still 136.3MB. Free memory was 80.2MB in the beginning and 78.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:52,384 INFO L158 Benchmark]: Boogie Preprocessor took 21.28ms. Allocated memory is still 136.3MB. Free memory was 78.9MB in the beginning and 77.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:52,385 INFO L158 Benchmark]: RCFGBuilder took 320.44ms. Allocated memory is still 136.3MB. Free memory was 77.9MB in the beginning and 69.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:37:52,388 INFO L158 Benchmark]: BuchiAutomizer took 2279.59ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 69.2MB in the beginning and 95.4MB in the end (delta: -26.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2023-11-19 07:37:52,388 INFO L158 Benchmark]: Witness Printer took 3.70ms. Allocated memory is still 174.1MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:52,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 136.3MB. Free memory is still 108.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.27ms. Allocated memory is still 136.3MB. Free memory was 89.6MB in the beginning and 80.2MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.15ms. Allocated memory is still 136.3MB. Free memory was 80.2MB in the beginning and 78.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.28ms. Allocated memory is still 136.3MB. Free memory was 78.9MB in the beginning and 77.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 320.44ms. Allocated memory is still 136.3MB. Free memory was 77.9MB in the beginning and 69.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2279.59ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 69.2MB in the beginning and 95.4MB in the end (delta: -26.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Witness Printer took 3.70ms. Allocated memory is still 174.1MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 9 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax169 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf97 smp100 dnf238 smp42 tf102 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 183ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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 07:37:52,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:52,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c240493c-ef73-444a-ab66-a26b291e2d2d/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