./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU --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 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:50,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:50,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:03:50,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:50,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:50,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:50,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:50,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:50,809 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:03:50,809 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:03:50,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:50,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:50,811 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:50,811 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:03:50,812 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:03:50,812 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:03:50,813 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:03:50,813 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:03:50,813 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:03:50,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:50,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:03:50,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:50,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:50,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:03:50,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:03:50,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:03:50,820 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:50,821 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:03:50,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:03:50,821 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:03:50,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:50,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:50,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:50,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:50,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:50,824 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:03:50,824 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_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 [2024-10-31 22:03:51,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:51,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:51,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:51,088 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:51,089 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:51,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-bwb/or-01.c Unable to find full path for "g++" [2024-10-31 22:03:53,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:53,352 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:53,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/sv-benchmarks/c/termination-bwb/or-01.c [2024-10-31 22:03:53,359 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/data/b4ffe7de5/d32518cbe9a5480a9683c3560411f27d/FLAGe13019ae6 [2024-10-31 22:03:53,760 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/data/b4ffe7de5/d32518cbe9a5480a9683c3560411f27d [2024-10-31 22:03:53,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:53,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:53,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:53,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:53,772 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:53,773 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187349c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53, skipping insertion in model container [2024-10-31 22:03:53,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:54,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:54,020 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:54,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:54,050 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:54,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54 WrapperNode [2024-10-31 22:03:54,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:54,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:54,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:54,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:54,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,085 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2024-10-31 22:03:54,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:54,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:54,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:54,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:54,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,109 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:03:54,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,111 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,117 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:54,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:54,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:54,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:54,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (1/1) ... [2024-10-31 22:03:54,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:54,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:54,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:54,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:54,270 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:54,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:54,397 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-31 22:03:54,398 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:54,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:54,412 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:03:54,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:54 BoogieIcfgContainer [2024-10-31 22:03:54,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:54,414 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:03:54,414 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:03:54,419 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:03:54,420 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:03:54,421 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:03:53" (1/3) ... [2024-10-31 22:03:54,423 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b7e5756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:03:54, skipping insertion in model container [2024-10-31 22:03:54,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:03:54,423 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:54" (2/3) ... [2024-10-31 22:03:54,424 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b7e5756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:03:54, skipping insertion in model container [2024-10-31 22:03:54,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:03:54,426 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:54" (3/3) ... [2024-10-31 22:03:54,428 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-01.c [2024-10-31 22:03:54,497 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:03:54,497 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:03:54,497 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:03:54,498 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:03:54,498 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:03:54,498 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:03:54,498 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:03:54,499 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:03:54,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:54,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:54,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:54,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:54,531 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:03:54,531 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:03:54,532 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:03:54,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:54,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:54,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:54,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:54,534 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:03:54,534 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:03:54,542 INFO L745 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L20-2true [2024-10-31 22:03:54,543 INFO L747 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 4#L22true assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~a~0#1; 2#L22-5true main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 6#L20-2true [2024-10-31 22:03:54,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:54,550 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:03:54,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:54,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131663452] [2024-10-31 22:03:54,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:54,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:54,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:54,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:54,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:54,672 INFO L85 PathProgramCache]: Analyzing trace with hash 40820, now seen corresponding path program 1 times [2024-10-31 22:03:54,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:54,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883725893] [2024-10-31 22:03:54,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:54,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:54,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:54,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:54,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:54,706 INFO L85 PathProgramCache]: Analyzing trace with hash 28699762, now seen corresponding path program 1 times [2024-10-31 22:03:54,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:54,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387717020] [2024-10-31 22:03:54,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:54,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:54,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:54,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387717020] [2024-10-31 22:03:54,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387717020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:54,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:54,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:03:54,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937156968] [2024-10-31 22:03:54,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:55,075 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:55,076 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:55,076 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:55,077 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:55,077 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:03:55,077 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:55,077 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:55,077 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:55,078 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2024-10-31 22:03:55,078 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:55,079 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:55,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:55,105 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:55,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:55,298 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:55,299 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:03:55,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:55,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:55,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:55,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:03:55,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:55,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:55,329 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:55,329 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:55,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:55,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:55,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:55,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:55,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:03:55,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:55,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:55,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:55,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:55,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:55,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:55,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:03:55,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:03:55,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:55,660 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:03:55,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:03:55,664 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:55,664 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:55,664 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:55,664 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:55,664 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:03:55,665 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:55,665 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:55,665 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:55,665 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2024-10-31 22:03:55,665 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:55,665 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:55,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:55,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:55,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:55,816 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:55,821 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:03:55,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:55,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:55,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:55,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:03:55,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:55,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:55,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:55,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:55,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:55,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:55,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:55,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:55,849 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:55,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:03:55,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:55,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:55,873 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:55,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:03:55,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:55,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:55,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:55,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:55,893 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:03:55,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:55,903 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 22:03:55,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:55,913 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:55,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:03:55,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:55,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:55,937 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:55,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:03:55,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:55,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:55,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:55,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:55,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:55,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:55,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:55,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:55,960 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:55,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:03:55,978 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-10-31 22:03:55,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:55,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:55,981 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:55,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:03:55,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:56,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:56,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:56,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:56,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:56,001 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-31 22:03:56,002 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-10-31 22:03:56,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:56,008 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:56,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:03:56,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:56,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:56,029 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:56,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:03:56,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:56,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:56,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:56,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:56,049 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:03:56,049 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-31 22:03:56,058 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:03:56,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:56,070 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:03:56,082 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-31 22:03:56,083 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-10-31 22:03:56,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:56,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:56,088 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:56,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:03:56,092 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:03:56,092 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:03:56,093 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:03:56,093 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-31 22:03:56,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:56,112 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:03:56,125 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-31 22:03:56,126 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-31 22:03:56,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:56,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:03:56,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:56,186 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:03:56,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:56,510 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-31 22:03:56,512 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:56,714 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 30 states and 41 transitions. Complement of second has 10 states. [2024-10-31 22:03:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-31 22:03:56,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:56,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2024-10-31 22:03:56,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2024-10-31 22:03:56,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:56,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-31 22:03:56,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:56,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2024-10-31 22:03:56,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:56,731 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 41 transitions. [2024-10-31 22:03:56,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:56,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 18 states and 23 transitions. [2024-10-31 22:03:56,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-31 22:03:56,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-10-31 22:03:56,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2024-10-31 22:03:56,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:56,744 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-10-31 22:03:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2024-10-31 22:03:56,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2024-10-31 22:03:56,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:56,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2024-10-31 22:03:56,790 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-10-31 22:03:56,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:56,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:56,795 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:56,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:03:56,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:56,839 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2024-10-31 22:03:56,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2024-10-31 22:03:56,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:56,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2024-10-31 22:03:56,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 22:03:56,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-31 22:03:56,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-10-31 22:03:56,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:56,842 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-10-31 22:03:56,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-10-31 22:03:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-10-31 22:03:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-10-31 22:03:56,845 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-31 22:03:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:56,846 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-31 22:03:56,846 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:03:56,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-10-31 22:03:56,847 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:56,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:56,847 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:56,848 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:03:56,848 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:03:56,848 INFO L745 eck$LassoCheckResult]: Stem: 126#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 124#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 122#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 123#L22-2 assume 0 == main_~a~0#1;main_#t~bitwise2#1 := main_~b~0#1; 120#L22-5 [2024-10-31 22:03:56,848 INFO L747 eck$LassoCheckResult]: Loop: 120#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 121#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 130#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~a~0#1; 120#L22-5 [2024-10-31 22:03:56,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:56,850 INFO L85 PathProgramCache]: Analyzing trace with hash 28699819, now seen corresponding path program 1 times [2024-10-31 22:03:56,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:56,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229346555] [2024-10-31 22:03:56,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:56,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:56,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229346555] [2024-10-31 22:03:56,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229346555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:56,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:56,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:56,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042882088] [2024-10-31 22:03:56,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:56,915 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:03:56,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:56,916 INFO L85 PathProgramCache]: Analyzing trace with hash 53210, now seen corresponding path program 2 times [2024-10-31 22:03:56,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:56,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894973145] [2024-10-31 22:03:56,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:56,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:56,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:56,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:57,013 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:57,014 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:57,014 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:57,014 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:57,014 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:03:57,014 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,014 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:57,014 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:57,014 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2024-10-31 22:03:57,014 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:57,014 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:57,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:57,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:57,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:57,141 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:57,141 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:03:57,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:57,143 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:57,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:03:57,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:57,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:57,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:57,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:57,181 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:57,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:03:57,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:03:57,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:57,505 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:03:57,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:57,509 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:57,509 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:57,510 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:57,510 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:57,510 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:03:57,510 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,510 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:57,510 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:57,510 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2024-10-31 22:03:57,510 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:57,510 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:57,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:57,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:57,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:57,627 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:57,627 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:03:57,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:57,631 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:57,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:03:57,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:57,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:57,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:57,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:57,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:57,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:57,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:57,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:57,648 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:57,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:03:57,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:57,669 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:57,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:03:57,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:57,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:57,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:57,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:57,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:57,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:57,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:57,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:57,690 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:57,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:03:57,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:57,716 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:57,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:03:57,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:57,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:57,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:57,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:57,734 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:03:57,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:57,737 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 22:03:57,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:57,749 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:57,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:57,768 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-10-31 22:03:57,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:57,770 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:57,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:03:57,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:57,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:57,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:57,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:57,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:57,784 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-31 22:03:57,785 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-10-31 22:03:57,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:57,788 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:57,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:03:57,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:57,826 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:57,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:03:57,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:57,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:57,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:57,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:57,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:57,846 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-31 22:03:57,849 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-10-31 22:03:57,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:57,852 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:57,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:03:57,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:57,875 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:57,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:03:57,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:57,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:57,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:57,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:57,893 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:03:57,893 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-31 22:03:57,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:03:57,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:57,907 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:03:57,919 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-10-31 22:03:57,919 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-10-31 22:03:57,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:57,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:57,921 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:57,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:03:57,923 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:03:57,923 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:03:57,924 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:03:57,924 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_#t~bitwise2#1 Supporting invariants [] [2024-10-31 22:03:57,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:03:57,945 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:03:57,950 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-31 22:03:57,951 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-31 22:03:57,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:57,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:03:57,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:57,997 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:03:57,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:58,285 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-31 22:03:58,285 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:58,350 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 37 transitions. Complement of second has 7 states. [2024-10-31 22:03:58,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:03:58,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-10-31 22:03:58,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-31 22:03:58,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:58,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2024-10-31 22:03:58,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:58,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-31 22:03:58,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:58,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2024-10-31 22:03:58,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-10-31 22:03:58,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 27 states and 35 transitions. [2024-10-31 22:03:58,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-10-31 22:03:58,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2024-10-31 22:03:58,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2024-10-31 22:03:58,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:58,356 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 35 transitions. [2024-10-31 22:03:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2024-10-31 22:03:58,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2024-10-31 22:03:58,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.32) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2024-10-31 22:03:58,359 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 33 transitions. [2024-10-31 22:03:58,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:58,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:58,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:58,360 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:58,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:58,373 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2024-10-31 22:03:58,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2024-10-31 22:03:58,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:58,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 10 states and 11 transitions. [2024-10-31 22:03:58,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-31 22:03:58,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-31 22:03:58,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2024-10-31 22:03:58,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:03:58,375 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 11 transitions. [2024-10-31 22:03:58,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2024-10-31 22:03:58,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-10-31 22:03:58,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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) [2024-10-31 22:03:58,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-10-31 22:03:58,377 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-10-31 22:03:58,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:58,378 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-10-31 22:03:58,379 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:03:58,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2024-10-31 22:03:58,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:58,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:58,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:58,380 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:03:58,381 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:03:58,381 INFO L745 eck$LassoCheckResult]: Stem: 254#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 255#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 253#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 251#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 252#L22-2 [2024-10-31 22:03:58,381 INFO L747 eck$LassoCheckResult]: Loop: 252#L22-2 assume !(0 == main_~a~0#1); 256#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 249#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 250#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 257#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 252#L22-2 [2024-10-31 22:03:58,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-10-31 22:03:58,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:58,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438193080] [2024-10-31 22:03:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:58,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:58,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:58,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:58,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:58,393 INFO L85 PathProgramCache]: Analyzing trace with hash 48701915, now seen corresponding path program 1 times [2024-10-31 22:03:58,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:58,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804842116] [2024-10-31 22:03:58,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:58,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:58,419 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:58,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:58,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:58,434 INFO L85 PathProgramCache]: Analyzing trace with hash 644884948, now seen corresponding path program 1 times [2024-10-31 22:03:58,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:58,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375068983] [2024-10-31 22:03:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:58,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:58,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:58,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:03:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:58,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:58,737 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:58,737 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:58,737 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:58,737 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:58,737 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:03:58,737 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:58,737 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:58,738 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:58,738 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Loop [2024-10-31 22:03:58,738 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:58,738 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:58,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:58,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:58,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:58,925 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-10-31 22:03:59,574 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:59,574 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:03:59,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:59,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:59,577 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:59,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:03:59,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:59,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:59,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 22:03:59,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:59,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:59,636 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:59,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:03:59,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:03:59,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:59,689 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:59,690 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_~b~0#1=-4} Honda state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_~b~0#1=-4} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-10-31 22:03:59,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:03:59,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:59,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:59,708 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:59,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:03:59,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:59,720 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:59,741 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:59,742 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:59,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:59,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:59,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:59,762 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:59,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:03:59,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:59,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:59,785 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:59,785 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:59,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:59,840 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:59,840 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:59,840 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:59,841 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:59,841 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:03:59,841 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:59,841 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:59,841 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:59,841 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Lasso [2024-10-31 22:03:59,841 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:59,841 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:59,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:59,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:59,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:59,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:59,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:00,042 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-10-31 22:04:00,626 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:00,626 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:00,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:00,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:00,629 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:00,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:04:00,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:00,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:00,649 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:00,649 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:00,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:00,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:00,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:00,670 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:00,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:04:00,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:00,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:00,690 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:00,691 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:00,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:00,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:00,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:00,713 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:00,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:04:00,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:00,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:00,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:00,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:00,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:00,756 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:00,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:04:00,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:00,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:00,814 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:00,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-31 22:04:00,818 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:00,818 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:00,819 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:00,819 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:00,819 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:00,819 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:00,819 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:00,819 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:00,819 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Lasso [2024-10-31 22:04:00,819 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:00,819 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:00,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:00,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:00,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:00,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:00,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:01,002 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-10-31 22:04:01,498 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:01,498 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:01,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:01,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:01,501 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:01,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:04:01,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:01,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:01,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:01,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:01,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:01,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:01,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:01,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:01,517 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:01,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 22:04:01,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:01,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:01,537 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:01,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:04:01,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:01,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:01,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:01,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:01,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:01,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:01,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:01,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:01,560 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:01,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:01,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:01,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:01,581 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:01,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:04:01,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:01,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:01,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:01,599 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2024-10-31 22:04:01,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:01,738 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2024-10-31 22:04:01,738 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2024-10-31 22:04:03,605 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:04,991 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2024-10-31 22:04:04,991 INFO L444 ModelExtractionUtils]: 30 out of 61 variables were initially zero. Simplification set additionally 25 variables to zero. [2024-10-31 22:04:04,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:04,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:04,994 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:04,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:04:04,997 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:05,034 INFO L438 nArgumentSynthesizer]: Removed 13 redundant supporting invariants from a total of 14. [2024-10-31 22:04:05,034 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:05,035 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 4294967295 Supporting invariants [2*ULTIMATE.start_main_~b~0#1 - 2*ULTIMATE.start_main_~a~0#1 + 3 >= 0] [2024-10-31 22:04:05,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:05,070 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-31 22:04:05,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:05,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:05,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:05,200 WARN L253 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:04:05,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:05,366 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 5 loop predicates [2024-10-31 22:04:05,366 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2024-10-31 22:04:05,486 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 24 transitions. Complement of second has 13 states. [2024-10-31 22:04:05,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:05,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2024-10-31 22:04:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2024-10-31 22:04:05,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 10 transitions. Stem has 4 letters. Loop has 5 letters. [2024-10-31 22:04:05,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:05,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 10 transitions. Stem has 9 letters. Loop has 5 letters. [2024-10-31 22:04:05,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:05,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 10 transitions. Stem has 4 letters. Loop has 10 letters. [2024-10-31 22:04:05,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:05,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2024-10-31 22:04:05,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:05,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 18 transitions. [2024-10-31 22:04:05,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-31 22:04:05,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-31 22:04:05,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 18 transitions. [2024-10-31 22:04:05,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:04:05,491 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-10-31 22:04:05,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 18 transitions. [2024-10-31 22:04:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-10-31 22:04:05,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-10-31 22:04:05,493 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-10-31 22:04:05,494 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-10-31 22:04:05,494 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:04:05,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2024-10-31 22:04:05,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:05,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:05,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:05,495 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:05,495 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:04:05,496 INFO L745 eck$LassoCheckResult]: Stem: 362#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 363#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 361#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 357#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 358#L22-2 assume !(0 == main_~a~0#1); 365#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 355#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 356#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 359#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~a~0#1; 353#L22-5 [2024-10-31 22:04:05,496 INFO L747 eck$LassoCheckResult]: Loop: 353#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 354#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 367#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~a~0#1; 353#L22-5 [2024-10-31 22:04:05,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:05,496 INFO L85 PathProgramCache]: Analyzing trace with hash 644884946, now seen corresponding path program 1 times [2024-10-31 22:04:05,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:05,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123189759] [2024-10-31 22:04:05,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:05,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:05,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123189759] [2024-10-31 22:04:05,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123189759] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:05,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460163866] [2024-10-31 22:04:05,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:05,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:05,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:05,737 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:05,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-31 22:04:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:05,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:04:05,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:05,868 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:06,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:06,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460163866] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:06,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:06,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 15 [2024-10-31 22:04:06,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394515313] [2024-10-31 22:04:06,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:06,114 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:04:06,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash 53210, now seen corresponding path program 3 times [2024-10-31 22:04:06,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:06,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673055432] [2024-10-31 22:04:06,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:06,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:06,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:06,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:06,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:06,182 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:06,182 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:06,182 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:06,183 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:06,183 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:06,183 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,183 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:06,183 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:06,183 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Loop [2024-10-31 22:04:06,183 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:06,183 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:06,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:06,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:06,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:06,288 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:06,289 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:06,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:06,291 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:06,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:04:06,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:06,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:06,311 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:06,312 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:06,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:06,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:06,333 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:06,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:04:06,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:06,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:06,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:06,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:06,376 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:06,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:04:06,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:06,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:06,686 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:06,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-10-31 22:04:06,689 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:06,690 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:06,690 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:06,690 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:06,690 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:06,690 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,690 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:06,690 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:06,690 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Loop [2024-10-31 22:04:06,690 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:06,690 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:06,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:06,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:06,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:06,799 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:06,799 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:06,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:06,803 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:06,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:04:06,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:06,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:06,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:06,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:06,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:06,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:06,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:06,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:06,823 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:06,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-10-31 22:04:06,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:06,844 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:06,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:04:06,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:06,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:06,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:06,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:06,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:06,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:06,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:06,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:06,865 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:06,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:06,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:06,886 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:06,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:04:06,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:06,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:06,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:06,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:06,903 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:06,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:06,905 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 22:04:06,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:06,911 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:06,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:06,930 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-10-31 22:04:06,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:06,933 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:06,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 22:04:06,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:06,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:06,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:06,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:06,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:06,947 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-31 22:04:06,948 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-10-31 22:04:06,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:06,949 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:06,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:06,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:06,964 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:06,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:04:06,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:06,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:06,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:06,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:06,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:06,978 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-31 22:04:06,978 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-10-31 22:04:06,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:06,980 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:06,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-10-31 22:04:06,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:06,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:07,001 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:07,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:04:07,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:07,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:07,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:07,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:07,019 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:07,019 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-31 22:04:07,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:07,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:07,031 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:07,043 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-10-31 22:04:07,043 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-10-31 22:04:07,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:07,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:07,046 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:07,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:04:07,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:07,048 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:04:07,048 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:07,048 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = -1*ULTIMATE.start_main_#t~bitwise2#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-31 22:04:07,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-10-31 22:04:07,068 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:04:07,071 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-31 22:04:07,072 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-31 22:04:07,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:07,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:04:07,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:07,123 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:04:07,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:07,290 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-31 22:04:07,292 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:07,342 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 27 states and 31 transitions. Complement of second has 7 states. [2024-10-31 22:04:07,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:07,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:07,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-10-31 22:04:07,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 3 letters. [2024-10-31 22:04:07,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:07,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 12 letters. Loop has 3 letters. [2024-10-31 22:04:07,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:07,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 6 letters. [2024-10-31 22:04:07,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:07,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2024-10-31 22:04:07,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:07,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 28 transitions. [2024-10-31 22:04:07,347 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-10-31 22:04:07,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-10-31 22:04:07,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2024-10-31 22:04:07,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:07,348 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-10-31 22:04:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2024-10-31 22:04:07,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2024-10-31 22:04:07,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-10-31 22:04:07,350 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-10-31 22:04:07,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:04:07,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:04:07,351 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:07,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:07,447 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-10-31 22:04:07,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 34 transitions. [2024-10-31 22:04:07,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:07,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 34 transitions. [2024-10-31 22:04:07,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-31 22:04:07,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-31 22:04:07,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 34 transitions. [2024-10-31 22:04:07,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:07,449 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-10-31 22:04:07,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 34 transitions. [2024-10-31 22:04:07,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-31 22:04:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2024-10-31 22:04:07,452 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-10-31 22:04:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:04:07,453 INFO L425 stractBuchiCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-10-31 22:04:07,453 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:04:07,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 34 transitions. [2024-10-31 22:04:07,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:07,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:07,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:07,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 4, 3, 3, 1, 1, 1] [2024-10-31 22:04:07,455 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:04:07,456 INFO L745 eck$LassoCheckResult]: Stem: 580#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 581#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 584#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 587#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 585#L22-2 assume !(0 == main_~a~0#1); 583#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 573#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 574#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 577#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 578#L22-2 assume !(0 == main_~a~0#1); 586#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 600#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 599#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 598#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 590#L22-2 assume !(0 == main_~a~0#1); 597#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 596#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 592#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 589#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~a~0#1; 591#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 579#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 575#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 576#L22-2 [2024-10-31 22:04:07,456 INFO L747 eck$LassoCheckResult]: Loop: 576#L22-2 assume !(0 == main_~a~0#1); 582#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 571#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 572#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 588#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 576#L22-2 [2024-10-31 22:04:07,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:07,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1908372501, now seen corresponding path program 2 times [2024-10-31 22:04:07,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:07,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916341273] [2024-10-31 22:04:07,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:07,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:07,821 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:07,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:07,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916341273] [2024-10-31 22:04:07,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916341273] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:07,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926195449] [2024-10-31 22:04:07,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:04:07,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:07,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:07,824 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:07,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-10-31 22:04:07,868 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:04:07,868 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:07,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 22:04:07,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:07,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-10-31 22:04:08,127 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:08,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:08,545 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:08,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926195449] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:08,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:08,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 30 [2024-10-31 22:04:08,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923855717] [2024-10-31 22:04:08,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:08,547 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:04:08,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:08,547 INFO L85 PathProgramCache]: Analyzing trace with hash 48701915, now seen corresponding path program 2 times [2024-10-31 22:04:08,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:08,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152919896] [2024-10-31 22:04:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:08,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:08,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:08,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:08,803 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:08,803 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:08,803 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:08,803 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:08,804 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:08,804 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,804 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:08,804 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:08,804 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration5_Loop [2024-10-31 22:04:08,804 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:08,804 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:08,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,971 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-10-31 22:04:09,520 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:09,520 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:09,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,522 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 22:04:09,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:09,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:09,537 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:09,537 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:09,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-10-31 22:04:09,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,552 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 22:04:09,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:09,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:09,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:09,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,589 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 22:04:09,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:09,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:09,630 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:09,630 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_~b~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_~b~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-10-31 22:04:09,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:09,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,637 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-31 22:04:09,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:09,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:09,652 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:09,652 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:09,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-10-31 22:04:09,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:09,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-31 22:04:09,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2024-10-31 22:04:09,667 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. cyclomatic complexity: 7 Second operand has 30 states, 30 states have (on average 1.9333333333333333) internal successors, (58), 30 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:09,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:09,860 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2024-10-31 22:04:09,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 54 transitions. [2024-10-31 22:04:09,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:09,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 50 states and 54 transitions. [2024-10-31 22:04:09,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-31 22:04:09,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-31 22:04:09,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 54 transitions. [2024-10-31 22:04:09,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:09,862 INFO L218 hiAutomatonCegarLoop]: Abstraction has 50 states and 54 transitions. [2024-10-31 22:04:09,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 54 transitions. [2024-10-31 22:04:09,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-10-31 22:04:09,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.08) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:09,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2024-10-31 22:04:09,867 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 54 transitions. [2024-10-31 22:04:09,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-31 22:04:09,869 INFO L425 stractBuchiCegarLoop]: Abstraction has 50 states and 54 transitions. [2024-10-31 22:04:09,869 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:04:09,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 54 transitions. [2024-10-31 22:04:09,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:09,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:09,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:09,872 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 8, 8, 7, 7, 1, 1, 1] [2024-10-31 22:04:09,873 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:04:09,873 INFO L745 eck$LassoCheckResult]: Stem: 821#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 822#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 828#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 829#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 825#L22-2 assume !(0 == main_~a~0#1); 826#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 861#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 860#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 859#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 827#L22-2 assume !(0 == main_~a~0#1); 824#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 814#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 815#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 818#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 819#L22-2 assume !(0 == main_~a~0#1); 858#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 857#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 856#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 855#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 854#L22-2 assume !(0 == main_~a~0#1); 853#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 852#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 851#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 850#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 849#L22-2 assume !(0 == main_~a~0#1); 848#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 847#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 846#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 845#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 844#L22-2 assume !(0 == main_~a~0#1); 843#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 842#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 841#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 840#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 831#L22-2 assume !(0 == main_~a~0#1); 839#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 835#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 834#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 830#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~a~0#1; 832#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 820#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 816#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 817#L22-2 [2024-10-31 22:04:09,873 INFO L747 eck$LassoCheckResult]: Loop: 817#L22-2 assume !(0 == main_~a~0#1); 823#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 812#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 813#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 833#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 817#L22-2 [2024-10-31 22:04:09,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash -53972245, now seen corresponding path program 3 times [2024-10-31 22:04:09,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:09,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818146075] [2024-10-31 22:04:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:09,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 23 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:10,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:10,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818146075] [2024-10-31 22:04:10,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818146075] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:10,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962271009] [2024-10-31 22:04:10,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:04:10,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:10,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,726 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-10-31 22:04:10,799 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-10-31 22:04:10,799 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:10,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-31 22:04:10,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:11,399 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 23 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:11,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 23 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:12,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962271009] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:12,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:12,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 25] total 58 [2024-10-31 22:04:12,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684639292] [2024-10-31 22:04:12,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:12,572 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:04:12,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:12,573 INFO L85 PathProgramCache]: Analyzing trace with hash 48701915, now seen corresponding path program 3 times [2024-10-31 22:04:12,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:12,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442452432] [2024-10-31 22:04:12,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:12,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:12,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:12,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:12,805 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:12,806 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:12,806 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:12,806 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:12,806 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:12,806 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,806 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:12,806 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:12,806 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration6_Loop [2024-10-31 22:04:12,807 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:12,807 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:12,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,954 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-10-31 22:04:13,408 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:13,408 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:13,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,410 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-31 22:04:13,412 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:13,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:13,424 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:13,425 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:13,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:13,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,438 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-31 22:04:13,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:13,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:13,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-10-31 22:04:13,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,494 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-31 22:04:13,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:13,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:13,547 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:13,547 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_~b~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_~b~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-10-31 22:04:13,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:13,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,553 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 22:04:13,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:13,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:13,572 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:13,572 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:13,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-10-31 22:04:13,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:13,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-10-31 22:04:13,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=2666, Unknown=0, NotChecked=0, Total=3306 [2024-10-31 22:04:13,592 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. cyclomatic complexity: 7 Second operand has 58 states, 58 states have (on average 2.0344827586206895) internal successors, (118), 58 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:14,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:14,153 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2024-10-31 22:04:14,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 84 transitions. [2024-10-31 22:04:14,154 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:14,157 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 80 states and 84 transitions. [2024-10-31 22:04:14,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-31 22:04:14,157 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-31 22:04:14,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 84 transitions. [2024-10-31 22:04:14,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:14,158 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 84 transitions. [2024-10-31 22:04:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 84 transitions. [2024-10-31 22:04:14,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-10-31 22:04:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.05) internal successors, (84), 79 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 84 transitions. [2024-10-31 22:04:14,167 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 84 transitions. [2024-10-31 22:04:14,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-31 22:04:14,169 INFO L425 stractBuchiCegarLoop]: Abstraction has 80 states and 84 transitions. [2024-10-31 22:04:14,169 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:04:14,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 84 transitions. [2024-10-31 22:04:14,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:14,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:14,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:14,171 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [15, 14, 14, 13, 13, 1, 1, 1] [2024-10-31 22:04:14,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:04:14,172 INFO L745 eck$LassoCheckResult]: Stem: 1260#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1261#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1264#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1268#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1265#L22-2 assume !(0 == main_~a~0#1); 1266#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1330#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1329#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1328#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1267#L22-2 assume !(0 == main_~a~0#1); 1263#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1253#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1254#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1257#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1258#L22-2 assume !(0 == main_~a~0#1); 1327#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1326#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1325#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1324#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1323#L22-2 assume !(0 == main_~a~0#1); 1322#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1321#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1320#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1319#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1318#L22-2 assume !(0 == main_~a~0#1); 1317#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1316#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1315#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1314#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1313#L22-2 assume !(0 == main_~a~0#1); 1312#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1311#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1310#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1309#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1308#L22-2 assume !(0 == main_~a~0#1); 1307#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1306#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1305#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1304#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1303#L22-2 assume !(0 == main_~a~0#1); 1302#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1301#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1300#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1299#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1298#L22-2 assume !(0 == main_~a~0#1); 1297#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1296#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1295#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1294#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1293#L22-2 assume !(0 == main_~a~0#1); 1292#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1291#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1290#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1289#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1288#L22-2 assume !(0 == main_~a~0#1); 1287#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1286#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1285#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1284#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1283#L22-2 assume !(0 == main_~a~0#1); 1282#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1281#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1280#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1279#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1271#L22-2 assume !(0 == main_~a~0#1); 1278#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1277#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1273#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1270#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~a~0#1; 1272#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1259#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1255#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1256#L22-2 [2024-10-31 22:04:14,174 INFO L747 eck$LassoCheckResult]: Loop: 1256#L22-2 assume !(0 == main_~a~0#1); 1262#L22-4 havoc main_#t~bitwise2#1;assume (((((main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 >= main_~a~0#1) && ((main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~b~0#1 + main_~a~0#1)) && ((main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 < 0)) && main_#t~bitwise2#1 <= 2147483647; 1251#L22-5 main_~b~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1252#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1269#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1256#L22-2 [2024-10-31 22:04:14,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:14,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1349747349, now seen corresponding path program 4 times [2024-10-31 22:04:14,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:14,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166571085] [2024-10-31 22:04:14,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:14,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,221 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:14,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:14,262 INFO L85 PathProgramCache]: Analyzing trace with hash 48701915, now seen corresponding path program 4 times [2024-10-31 22:04:14,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:14,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932691643] [2024-10-31 22:04:14,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:14,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:14,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash 763524785, now seen corresponding path program 5 times [2024-10-31 22:04:14,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:14,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195254797] [2024-10-31 22:04:14,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:14,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:14,595 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:14,596 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:14,596 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:14,596 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:14,596 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:14,596 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:14,596 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:14,596 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:14,596 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Loop [2024-10-31 22:04:14,596 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:14,596 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:14,597 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:14,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:14,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:14,719 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-10-31 22:04:15,168 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:15,168 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:15,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,171 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-31 22:04:15,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:15,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,186 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:15,186 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:15,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:15,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,227 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-10-31 22:04:15,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:15,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-10-31 22:04:15,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,297 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-10-31 22:04:15,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:15,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,368 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:15,368 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_~b~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_~b~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 1] [2024-10-31 22:04:15,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-10-31 22:04:15,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,373 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-10-31 22:04:15,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:15,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,386 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:15,386 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:15,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:17,787 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:17,787 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:17,787 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:17,787 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:17,787 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:17,788 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:17,788 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:17,788 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:17,788 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2024-10-31 22:04:17,788 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:17,788 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:17,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:17,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:17,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:17,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:17,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:17,955 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-10-31 22:04:18,465 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:18,465 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:18,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,466 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-10-31 22:04:18,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,481 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,482 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:18,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-10-31 22:04:18,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,521 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-10-31 22:04:18,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,535 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,535 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:18,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-10-31 22:04:18,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,550 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-10-31 22:04:18,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:18,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,584 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-10-31 22:04:18,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:18,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,633 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:18,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2024-10-31 22:04:18,640 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:18,640 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:18,640 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:18,640 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:18,640 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:18,640 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,640 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:18,640 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:18,640 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2024-10-31 22:04:18,641 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:18,641 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:18,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,873 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-10-31 22:04:19,370 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:19,371 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:19,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:19,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:19,372 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:19,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-10-31 22:04:19,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:19,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:19,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:19,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:19,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:19,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:19,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:19,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:19,388 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:19,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-10-31 22:04:19,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:19,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:19,402 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:19,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-10-31 22:04:19,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:19,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:19,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:19,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:19,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:19,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:19,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:19,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:19,418 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:19,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:19,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:19,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:19,432 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:19,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-10-31 22:04:19,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:19,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:19,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:19,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:19,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:19,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:19,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:19,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:19,450 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:19,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-10-31 22:04:19,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:19,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:19,473 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:19,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-10-31 22:04:19,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:19,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:19,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:19,489 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2024-10-31 22:04:19,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:19,620 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2024-10-31 22:04:19,620 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2024-10-31 22:04:23,040 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:24,664 INFO L443 ModelExtractionUtils]: Simplification made 35 calls to the SMT solver. [2024-10-31 22:04:24,664 INFO L444 ModelExtractionUtils]: 23 out of 61 variables were initially zero. Simplification set additionally 23 variables to zero. [2024-10-31 22:04:24,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:24,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:24,666 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:24,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-10-31 22:04:24,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:24,702 INFO L438 nArgumentSynthesizer]: Removed 11 redundant supporting invariants from a total of 14. [2024-10-31 22:04:24,702 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:24,702 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0, 1*ULTIMATE.start_main_~x~0#1 >= 0, -5*ULTIMATE.start_main_~a~0#1 + 5*ULTIMATE.start_main_~b~0#1 + 6 >= 0] [2024-10-31 22:04:24,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01832db0-9459-4dfe-9915-7794126053e0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:24,733 INFO L156 tatePredicateManager]: 1 out of 3 supporting invariants were superfluous and have been removed [2024-10-31 22:04:24,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:24,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-31 22:04:24,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:25,526 WARN L253 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:04:25,526 INFO L278 TraceCheckSpWp]: Computing forward predicates...