./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-02.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_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/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_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/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_02edb708-ddeb-4117-9fde-7596f6f4b6e6/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 a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:38,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:38,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:07:38,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:38,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:38,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:38,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:38,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:38,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:07:38,375 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:07:38,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:38,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:38,378 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:38,379 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:07:38,379 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:07:38,379 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:07:38,380 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:07:38,383 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:07:38,384 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:07:38,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:38,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:07:38,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:07:38,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:07:38,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:07:38,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:07:38,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:07:38,388 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:07:38,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:07:38,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:07:38,389 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:07:38,389 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:07:38,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:07:38,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:07:38,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:07:38,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:07:38,391 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:07:38,392 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_02edb708-ddeb-4117-9fde-7596f6f4b6e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c [2024-10-31 22:07:38,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:07:38,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:07:38,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:07:38,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:07:38,763 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:07:38,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-bwb/and-02.c Unable to find full path for "g++" [2024-10-31 22:07:40,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:07:41,137 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:07:41,138 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/sv-benchmarks/c/termination-bwb/and-02.c [2024-10-31 22:07:41,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/data/8bb9cc5c0/edfdf7c41e1f45afa6d996f697e676a1/FLAGbae7a68de [2024-10-31 22:07:41,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/data/8bb9cc5c0/edfdf7c41e1f45afa6d996f697e676a1 [2024-10-31 22:07:41,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:07:41,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:07:41,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:41,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:07:41,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:07:41,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197f22da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41, skipping insertion in model container [2024-10-31 22:07:41,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,215 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:07:41,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:41,527 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:07:41,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:41,564 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:07:41,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41 WrapperNode [2024-10-31 22:07:41,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:41,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:41,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:07:41,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:07:41,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,603 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-10-31 22:07:41,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:41,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:07:41,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:07:41,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:07:41,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,630 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:07:41,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,635 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:41,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:41,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:41,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:41,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:41,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:41,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:41,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:41,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:41,831 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:41,834 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:41,957 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-31 22:07:41,957 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:41,973 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:41,973 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:07:41,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:41 BoogieIcfgContainer [2024-10-31 22:07:41,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:41,975 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:07:41,976 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:07:41,981 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:07:41,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:07:41,982 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:07:41" (1/3) ... [2024-10-31 22:07:41,984 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f4a4f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:07:41, skipping insertion in model container [2024-10-31 22:07:41,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:07:41,984 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (2/3) ... [2024-10-31 22:07:41,985 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f4a4f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:07:41, skipping insertion in model container [2024-10-31 22:07:41,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:07:41,985 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:41" (3/3) ... [2024-10-31 22:07:41,987 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-02.c [2024-10-31 22:07:42,063 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:07:42,063 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:07:42,064 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:07:42,064 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:07:42,064 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:07:42,064 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:07:42,064 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:07:42,065 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:07:42,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 22:07:42,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:07:42,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:42,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:42,101 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:07:42,101 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:42,102 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:07:42,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 22:07:42,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:07:42,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:42,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:42,104 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:07:42,105 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:42,115 INFO L745 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 6#L18-2true [2024-10-31 22:07:42,115 INFO L747 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 4#L18true assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 6#L18-2true [2024-10-31 22:07:42,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:42,123 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:07:42,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:42,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705233789] [2024-10-31 22:07:42,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:42,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:42,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:42,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:42,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 1 times [2024-10-31 22:07:42,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:42,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944936974] [2024-10-31 22:07:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:42,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:42,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:42,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:42,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash 925813, now seen corresponding path program 1 times [2024-10-31 22:07:42,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:42,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016006207] [2024-10-31 22:07:42,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:42,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:42,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:42,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:42,478 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:42,478 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:42,479 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:42,479 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:42,479 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:42,480 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:42,480 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:42,480 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:42,480 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-10-31 22:07:42,481 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:42,481 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:42,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:42,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:42,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:42,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:42,643 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:42,644 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:42,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:42,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:42,650 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:42,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:07:42,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:42,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:42,675 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:42,675 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:07:42,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:42,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:42,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:42,710 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:42,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:07:42,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:42,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:42,730 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:42,731 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 22:07:42,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:42,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:42,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:42,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:42,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:07:42,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:42,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:42,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:07:42,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:42,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:42,812 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:42,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:07:42,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:42,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:42,846 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:42,846 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=2}, {ULTIMATE.start_main_~a~0#1=-3}, {ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2024-10-31 22:07:42,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:42,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:42,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:42,865 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:42,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:07:42,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:42,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:42,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:42,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:42,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:42,896 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:42,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:07:42,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:42,898 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:42,941 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:42,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:07:42,947 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:42,947 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:42,947 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:42,947 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:42,947 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:42,948 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:42,948 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:42,948 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:42,949 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-10-31 22:07:42,949 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:42,949 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:42,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:42,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:42,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:42,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:43,060 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:43,066 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:43,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:43,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:43,071 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:43,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:07:43,074 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 22:07:43,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:43,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:43,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:43,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:43,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:43,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:43,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:43,100 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:43,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:43,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:43,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:43,119 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:43,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:07:43,122 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 22:07:43,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:43,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:43,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:43,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:43,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:43,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:43,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:43,139 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:43,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:07:43,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:43,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:43,162 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:43,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:07:43,164 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 22:07:43,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:43,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:43,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:43,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:43,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:43,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:43,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:43,185 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:43,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:07:43,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:43,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:43,206 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:43,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:07:43,210 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 22:07:43,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:43,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:43,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:43,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:43,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:43,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:43,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:43,233 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:43,238 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:07:43,239 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:07:43,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:43,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:43,253 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:43,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:07:43,257 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:43,257 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:07:43,258 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:43,258 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-31 22:07:43,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:43,279 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:07:43,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:43,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:43,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:43,372 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:43,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:43,378 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 22:07:43,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:07:43,440 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:43,442 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:43,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 38 transitions. Complement of second has 6 states. [2024-10-31 22:07:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:07:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:43,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-10-31 22:07:43,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-31 22:07:43,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:43,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 22:07:43,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:43,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 22:07:43,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:43,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 38 transitions. [2024-10-31 22:07:43,516 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:07:43,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 15 states and 22 transitions. [2024-10-31 22:07:43,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 22:07:43,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-31 22:07:43,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2024-10-31 22:07:43,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:43,524 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 22 transitions. [2024-10-31 22:07:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2024-10-31 22:07:43,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2024-10-31 22:07:43,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 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 22:07:43,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-10-31 22:07:43,553 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-10-31 22:07:43,553 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-10-31 22:07:43,553 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:07:43,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-10-31 22:07:43,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:07:43,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:43,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:43,555 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:07:43,555 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:07:43,556 INFO L745 eck$LassoCheckResult]: Stem: 83#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 84#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_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 85#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 77#L18 assume main_~x~0#1 > 0; 78#L19 [2024-10-31 22:07:43,556 INFO L747 eck$LassoCheckResult]: Loop: 78#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 75#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 81#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 82#L18 assume main_~x~0#1 > 0; 78#L19 [2024-10-31 22:07:43,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,557 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-10-31 22:07:43,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:43,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541779058] [2024-10-31 22:07:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:43,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:43,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:43,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:43,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1456270, now seen corresponding path program 1 times [2024-10-31 22:07:43,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:43,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004557301] [2024-10-31 22:07:43,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:43,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:43,671 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 22:07:43,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:43,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004557301] [2024-10-31 22:07:43,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004557301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:43,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:43,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:43,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616520998] [2024-10-31 22:07:43,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:43,686 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:07:43,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:43,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:43,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:43,691 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:43,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:43,729 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-10-31 22:07:43,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2024-10-31 22:07:43,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:07:43,732 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2024-10-31 22:07:43,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-31 22:07:43,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-31 22:07:43,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2024-10-31 22:07:43,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:43,733 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-10-31 22:07:43,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2024-10-31 22:07:43,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-31 22:07:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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 22:07:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2024-10-31 22:07:43,737 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-10-31 22:07:43,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:43,738 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-10-31 22:07:43,739 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:07:43,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2024-10-31 22:07:43,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:07:43,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:43,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:43,741 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:07:43,741 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:07:43,742 INFO L745 eck$LassoCheckResult]: Stem: 117#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 118#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_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 121#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 116#L18 assume main_~x~0#1 > 0; 119#L19 [2024-10-31 22:07:43,742 INFO L747 eck$LassoCheckResult]: Loop: 119#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 108#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 109#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 112#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 115#L18 assume main_~x~0#1 > 0; 119#L19 [2024-10-31 22:07:43,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,744 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 2 times [2024-10-31 22:07:43,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:43,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052673137] [2024-10-31 22:07:43,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:43,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:43,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:43,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:43,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,764 INFO L85 PathProgramCache]: Analyzing trace with hash 46857754, now seen corresponding path program 1 times [2024-10-31 22:07:43,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:43,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178109290] [2024-10-31 22:07:43,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:43,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:43,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:43,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:43,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,792 INFO L85 PathProgramCache]: Analyzing trace with hash 585782485, now seen corresponding path program 1 times [2024-10-31 22:07:43,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:43,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545175462] [2024-10-31 22:07:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:43,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:43,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:43,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:43,917 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:43,917 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:43,917 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:43,918 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:43,918 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:43,918 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:43,918 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:43,918 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:43,918 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-10-31 22:07:43,918 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:43,918 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:43,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:43,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:43,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:44,003 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:44,004 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:44,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:44,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:44,009 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:44,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:07:44,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:44,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:44,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:44,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:44,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:44,044 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:44,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:07:44,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:44,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:44,193 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:44,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:07:44,198 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:44,198 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:44,198 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:44,199 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:44,199 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:44,199 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:44,199 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:44,199 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:44,199 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-10-31 22:07:44,199 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:44,199 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:44,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:44,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:44,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:44,291 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:44,291 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:44,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:44,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:44,295 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:44,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:07:44,298 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 22:07:44,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:44,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:44,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:44,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:44,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:44,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:44,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:44,321 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:44,325 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:07:44,325 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:07:44,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:44,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:44,328 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:44,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:07:44,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:44,332 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:07:44,333 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:44,333 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2024-10-31 22:07:44,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:07:44,354 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:07:44,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:44,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:44,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:44,397 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:07:44,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:44,488 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 22:07:44,489 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-10-31 22:07:44,489 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:44,605 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 50 transitions. Complement of second has 10 states. [2024-10-31 22:07:44,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 22:07:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:44,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2024-10-31 22:07:44,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 5 letters. [2024-10-31 22:07:44,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:44,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 9 letters. Loop has 5 letters. [2024-10-31 22:07:44,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:44,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 10 letters. [2024-10-31 22:07:44,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:44,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2024-10-31 22:07:44,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 22:07:44,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 50 transitions. [2024-10-31 22:07:44,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-10-31 22:07:44,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-10-31 22:07:44,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 50 transitions. [2024-10-31 22:07:44,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:44,611 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 50 transitions. [2024-10-31 22:07:44,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 50 transitions. [2024-10-31 22:07:44,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-10-31 22:07:44,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 28 states have internal predecessors, (44), 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 22:07:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2024-10-31 22:07:44,615 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 44 transitions. [2024-10-31 22:07:44,616 INFO L425 stractBuchiCegarLoop]: Abstraction has 29 states and 44 transitions. [2024-10-31 22:07:44,616 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:07:44,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 44 transitions. [2024-10-31 22:07:44,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:07:44,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:44,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:44,623 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:07:44,623 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-10-31 22:07:44,624 INFO L745 eck$LassoCheckResult]: Stem: 227#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 231#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 235#L18 assume main_~x~0#1 > 0; 234#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 215#L19-5 [2024-10-31 22:07:44,624 INFO L747 eck$LassoCheckResult]: Loop: 215#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 224#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 220#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 221#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 239#L18 assume main_~x~0#1 > 0; 229#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 215#L19-5 [2024-10-31 22:07:44,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2024-10-31 22:07:44,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:44,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960615748] [2024-10-31 22:07:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:44,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:44,713 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 22:07:44,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:44,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960615748] [2024-10-31 22:07:44,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960615748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:44,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:44,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:07:44,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818838682] [2024-10-31 22:07:44,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:44,715 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:07:44,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:44,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1671524450, now seen corresponding path program 1 times [2024-10-31 22:07:44,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:44,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321409081] [2024-10-31 22:07:44,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:44,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:44,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:44,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:44,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321409081] [2024-10-31 22:07:44,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321409081] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:07:44,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542085076] [2024-10-31 22:07:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:44,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:07:44,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:44,800 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:07:44,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-31 22:07:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:44,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:44,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:44,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:44,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:07:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:44,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542085076] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:07:44,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:07:44,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-10-31 22:07:44,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160373606] [2024-10-31 22:07:44,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:07:44,877 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:07:44,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:44,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:44,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:44,879 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. cyclomatic complexity: 18 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 22:07:44,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:44,922 INFO L93 Difference]: Finished difference Result 36 states and 54 transitions. [2024-10-31 22:07:44,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2024-10-31 22:07:44,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:07:44,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 54 transitions. [2024-10-31 22:07:44,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-10-31 22:07:44,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-10-31 22:07:44,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 54 transitions. [2024-10-31 22:07:44,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:44,929 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 54 transitions. [2024-10-31 22:07:44,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 54 transitions. [2024-10-31 22:07:44,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2024-10-31 22:07:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 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 22:07:44,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 47 transitions. [2024-10-31 22:07:44,936 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 47 transitions. [2024-10-31 22:07:44,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:44,940 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 47 transitions. [2024-10-31 22:07:44,940 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:07:44,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 47 transitions. [2024-10-31 22:07:44,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:07:44,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:44,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:44,942 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:07:44,946 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:07:44,946 INFO L745 eck$LassoCheckResult]: Stem: 333#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 334#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_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 328#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 324#L18 assume main_~x~0#1 > 0; 325#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 318#L19-2 [2024-10-31 22:07:44,947 INFO L747 eck$LassoCheckResult]: Loop: 318#L19-2 assume !(main_~x~0#1 == main_~a~0#1); 320#L19-4 havoc main_#t~bitwise2#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise2#1 >= -2147483648; 338#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 341#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 340#L18 assume main_~x~0#1 > 0; 335#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 318#L19-2 [2024-10-31 22:07:44,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:44,947 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2024-10-31 22:07:44,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:44,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622045102] [2024-10-31 22:07:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:44,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:44,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:44,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:44,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:44,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1598506711, now seen corresponding path program 1 times [2024-10-31 22:07:44,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:44,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642683719] [2024-10-31 22:07:44,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:44,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:44,973 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:44,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:44,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:44,981 INFO L85 PathProgramCache]: Analyzing trace with hash 352137795, now seen corresponding path program 1 times [2024-10-31 22:07:44,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:44,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824309701] [2024-10-31 22:07:44,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:44,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:44,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:44,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:45,226 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:45,226 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:45,226 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:45,226 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:45,226 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:45,226 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:45,226 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:45,226 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:45,226 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Loop [2024-10-31 22:07:45,227 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:45,227 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:45,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:45,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:45,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:45,372 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-10-31 22:07:45,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:07:45,738 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:45,738 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:45,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:45,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:45,741 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:45,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:07:45,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:45,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:45,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:45,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:45,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:45,799 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:45,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:07:45,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:45,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:45,977 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:45,978 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-4} Honda state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-4} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-10-31 22:07:45,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:45,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:45,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:45,999 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:46,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:07:46,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:46,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:46,014 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:46,014 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 22:07:46,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:46,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:46,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:46,031 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:46,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:07:46,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:46,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:46,046 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:46,046 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 22:07:46,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:07:46,089 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:46,089 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:46,089 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:46,089 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:46,089 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:46,089 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:46,089 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:46,089 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:46,090 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-10-31 22:07:46,090 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:46,090 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:46,091 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,221 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-10-31 22:07:46,449 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:46,449 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:46,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:46,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:46,451 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:46,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:07:46,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:46,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:46,465 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:46,466 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:07:46,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:46,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:46,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:46,481 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:46,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:07:46,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:46,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:46,495 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:46,495 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 22:07:46,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-31 22:07:46,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:46,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:46,509 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:46,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:07:46,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:46,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:46,523 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:46,524 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 22:07:46,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-10-31 22:07:46,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:46,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:46,538 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:46,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:07:46,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:46,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:46,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:46,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:46,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:46,576 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:46,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:07:46,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:46,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:46,904 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:46,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:46,907 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:46,908 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:46,908 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:46,908 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:46,908 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:46,908 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:46,908 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:46,908 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:46,908 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-10-31 22:07:46,908 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:46,908 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:46,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:46,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:47,041 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-10-31 22:07:47,301 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:47,301 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:47,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:47,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:47,304 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:47,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:07:47,312 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 22:07:47,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:47,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:47,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:47,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:47,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:47,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:47,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:47,330 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:47,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:47,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:47,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:47,345 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:47,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:07:47,347 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 22:07:47,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:47,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:47,362 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-10-31 22:07:47,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:47,407 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-10-31 22:07:47,408 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-10-31 22:07:47,523 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:47,620 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2024-10-31 22:07:47,620 INFO L444 ModelExtractionUtils]: 11 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. [2024-10-31 22:07:47,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:47,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:47,622 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:47,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:07:47,624 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:47,656 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2024-10-31 22:07:47,657 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:47,657 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0] [2024-10-31 22:07:47,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 22:07:47,699 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-31 22:07:47,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:47,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:47,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:47,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:07:47,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:47,935 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 22:07:47,935 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 22:07:47,936 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 22:07:48,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-31 22:07:48,070 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 77 states and 106 transitions. Complement of second has 12 states. [2024-10-31 22:07:48,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 3 non-accepting loop states 2 accepting loop states [2024-10-31 22:07:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 22:07:48,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 18 transitions. [2024-10-31 22:07:48,074 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 18 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-31 22:07:48,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:48,075 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:07:48,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:48,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:48,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:48,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:07:48,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:48,272 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 22:07:48,273 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 5 loop predicates [2024-10-31 22:07:48,273 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 22:07:48,506 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 97 states and 136 transitions. Complement of second has 20 states. [2024-10-31 22:07:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 3 stem states 7 non-accepting loop states 2 accepting loop states [2024-10-31 22:07:48,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 22:07:48,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 23 transitions. [2024-10-31 22:07:48,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-31 22:07:48,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:48,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 11 letters. Loop has 6 letters. [2024-10-31 22:07:48,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:48,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 12 letters. [2024-10-31 22:07:48,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:48,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 136 transitions. [2024-10-31 22:07:48,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-10-31 22:07:48,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 88 states and 123 transitions. [2024-10-31 22:07:48,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-10-31 22:07:48,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-10-31 22:07:48,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 123 transitions. [2024-10-31 22:07:48,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:48,516 INFO L218 hiAutomatonCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-10-31 22:07:48,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 123 transitions. [2024-10-31 22:07:48,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 62. [2024-10-31 22:07:48,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 61 states have internal predecessors, (90), 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 22:07:48,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2024-10-31 22:07:48,525 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-10-31 22:07:48,525 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-10-31 22:07:48,526 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:07:48,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 90 transitions. [2024-10-31 22:07:48,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:07:48,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:48,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:48,528 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:07:48,529 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-10-31 22:07:48,529 INFO L745 eck$LassoCheckResult]: Stem: 689#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 690#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 693#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 716#L18 assume main_~x~0#1 > 0; 714#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 713#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 677#L19-5 [2024-10-31 22:07:48,529 INFO L747 eck$LassoCheckResult]: Loop: 677#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 686#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 682#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 683#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 732#L18 assume main_~x~0#1 > 0; 697#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 677#L19-5 [2024-10-31 22:07:48,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:48,529 INFO L85 PathProgramCache]: Analyzing trace with hash 889692489, now seen corresponding path program 1 times [2024-10-31 22:07:48,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:48,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223852335] [2024-10-31 22:07:48,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:48,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:48,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:48,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:48,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:48,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1671524450, now seen corresponding path program 2 times [2024-10-31 22:07:48,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:48,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591348685] [2024-10-31 22:07:48,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:48,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:48,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:48,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591348685] [2024-10-31 22:07:48,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591348685] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:07:48,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058197431] [2024-10-31 22:07:48,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:07:48,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:07:48,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:48,607 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:07:48,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-31 22:07:48,643 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:07:48,643 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:07:48,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:48,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:48,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:07:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:48,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058197431] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:07:48,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:07:48,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-10-31 22:07:48,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067416692] [2024-10-31 22:07:48,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:07:48,672 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:07:48,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:48,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:48,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:48,673 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:48,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:48,710 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2024-10-31 22:07:48,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 64 transitions. [2024-10-31 22:07:48,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:48,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 36 states and 45 transitions. [2024-10-31 22:07:48,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-10-31 22:07:48,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-10-31 22:07:48,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2024-10-31 22:07:48,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:48,713 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-10-31 22:07:48,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2024-10-31 22:07:48,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2024-10-31 22:07:48,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 32 states have internal predecessors, (42), 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 22:07:48,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2024-10-31 22:07:48,718 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-10-31 22:07:48,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:07:48,719 INFO L425 stractBuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-10-31 22:07:48,719 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:07:48,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 42 transitions. [2024-10-31 22:07:48,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:48,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:48,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:48,721 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:48,721 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:48,721 INFO L745 eck$LassoCheckResult]: Stem: 841#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 842#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 843#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 852#L18 assume main_~x~0#1 > 0; 847#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 827#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 828#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 836#L18-2 [2024-10-31 22:07:48,721 INFO L747 eck$LassoCheckResult]: Loop: 836#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 835#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 836#L18-2 [2024-10-31 22:07:48,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:48,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663410, now seen corresponding path program 2 times [2024-10-31 22:07:48,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:48,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436533084] [2024-10-31 22:07:48,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:48,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:48,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:48,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:48,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:48,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 2 times [2024-10-31 22:07:48,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:48,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595935437] [2024-10-31 22:07:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:48,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:48,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:48,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:48,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash 585782500, now seen corresponding path program 1 times [2024-10-31 22:07:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:48,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115684352] [2024-10-31 22:07:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:48,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:48,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:48,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115684352] [2024-10-31 22:07:48,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115684352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:48,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:48,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:07:48,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058366925] [2024-10-31 22:07:48,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:48,825 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:48,826 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:48,826 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:48,826 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:48,826 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:48,826 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:48,826 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:48,826 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:48,826 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-10-31 22:07:48,827 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:48,827 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:48,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:48,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:48,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:48,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:48,884 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:48,884 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:48,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:48,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:48,886 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:48,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:07:48,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:48,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:48,905 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:48,906 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:07:48,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:48,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:48,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:48,928 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:48,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:07:48,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:48,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:48,949 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:48,949 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 22:07:48,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:48,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:48,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:48,963 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:48,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:07:48,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:48,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:48,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:48,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:48,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:48,991 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:48,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:07:48,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:48,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:49,025 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:49,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-10-31 22:07:49,028 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:49,028 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:49,028 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:49,028 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:49,029 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:49,029 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,029 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:49,029 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:49,029 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-10-31 22:07:49,029 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:49,029 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:49,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,083 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:49,083 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:49,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:49,085 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:49,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:07:49,087 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 22:07:49,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:49,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:49,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:49,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:49,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:49,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:49,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:49,101 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:49,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:49,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:49,121 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:49,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:07:49,123 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 22:07:49,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:49,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:49,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:49,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:49,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:49,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:49,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:49,139 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:49,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:49,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:49,159 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:49,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:07:49,161 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 22:07:49,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:49,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:49,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:49,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:49,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:49,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:49,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:49,180 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:49,187 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:07:49,188 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:07:49,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:49,191 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:49,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:07:49,193 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:49,193 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:07:49,193 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:49,193 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-31 22:07:49,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-31 22:07:49,212 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:07:49,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:49,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:49,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:49,254 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:49,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:49,258 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 22:07:49,258 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:49,258 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 42 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:49,292 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 42 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 85 states and 109 transitions. Complement of second has 5 states. [2024-10-31 22:07:49,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:07:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2024-10-31 22:07:49,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-31 22:07:49,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:49,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-31 22:07:49,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:49,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 4 letters. [2024-10-31 22:07:49,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:49,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 109 transitions. [2024-10-31 22:07:49,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:49,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 63 states and 82 transitions. [2024-10-31 22:07:49,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-10-31 22:07:49,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-10-31 22:07:49,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 82 transitions. [2024-10-31 22:07:49,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:49,301 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 82 transitions. [2024-10-31 22:07:49,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 82 transitions. [2024-10-31 22:07:49,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 35. [2024-10-31 22:07:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 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 22:07:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2024-10-31 22:07:49,307 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2024-10-31 22:07:49,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:49,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:49,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:49,308 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 22:07:49,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:49,337 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2024-10-31 22:07:49,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2024-10-31 22:07:49,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:49,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 46 transitions. [2024-10-31 22:07:49,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-10-31 22:07:49,341 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-10-31 22:07:49,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2024-10-31 22:07:49,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:49,341 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2024-10-31 22:07:49,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2024-10-31 22:07:49,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2024-10-31 22:07:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 34 states have internal predecessors, (43), 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 22:07:49,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2024-10-31 22:07:49,347 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-10-31 22:07:49,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:49,348 INFO L425 stractBuchiCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-10-31 22:07:49,349 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:07:49,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 43 transitions. [2024-10-31 22:07:49,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:49,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:49,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:49,352 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:07:49,352 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:49,352 INFO L745 eck$LassoCheckResult]: Stem: 1085#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1086#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_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 1087#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1095#L18 assume main_~x~0#1 > 0; 1093#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1072#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 1073#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1080#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1081#L18 assume main_~x~0#1 > 0; 1088#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 1089#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1077#L18-2 [2024-10-31 22:07:49,352 INFO L747 eck$LassoCheckResult]: Loop: 1077#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1076#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1077#L18-2 [2024-10-31 22:07:49,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash 296252863, now seen corresponding path program 1 times [2024-10-31 22:07:49,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:49,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123084026] [2024-10-31 22:07:49,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:49,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:49,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:49,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:49,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123084026] [2024-10-31 22:07:49,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123084026] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:07:49,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110531580] [2024-10-31 22:07:49,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:49,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:07:49,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:49,430 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:07:49,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-10-31 22:07:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:49,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:07:49,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:49,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:07:49,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:49,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110531580] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:07:49,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:07:49,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-31 22:07:49,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955114069] [2024-10-31 22:07:49,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:07:49,540 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:07:49,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:49,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 3 times [2024-10-31 22:07:49,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:49,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124676868] [2024-10-31 22:07:49,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:49,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:49,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:49,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:49,574 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:49,575 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:49,575 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:49,575 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:49,575 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:49,575 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,575 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:49,575 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:49,575 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-10-31 22:07:49,575 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:49,576 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:49,576 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,639 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:49,639 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:49,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:49,642 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:49,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:07:49,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:49,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:49,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-10-31 22:07:49,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:49,682 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:49,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:07:49,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:49,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:49,725 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:49,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:49,729 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:49,729 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:49,729 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:49,729 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:49,729 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:49,729 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,729 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:49,729 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:49,730 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-10-31 22:07:49,730 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:49,730 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:49,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,743 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:49,788 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:49,788 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:49,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:49,790 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:49,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:07:49,792 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 22:07:49,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:49,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:49,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:49,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:49,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:49,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:49,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:49,810 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:49,815 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:07:49,815 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:07:49,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:49,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:49,817 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:49,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 22:07:49,820 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:49,820 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:07:49,820 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:49,820 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-31 22:07:49,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-10-31 22:07:49,839 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:07:49,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:49,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:49,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:49,892 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:49,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:49,895 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 22:07:49,895 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:49,896 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 22:07:49,920 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 76 states and 92 transitions. Complement of second has 5 states. [2024-10-31 22:07:49,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:07:49,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 22:07:49,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-10-31 22:07:49,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-31 22:07:49,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:49,923 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:07:49,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:49,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:49,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:49,978 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:49,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:49,981 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 22:07:49,981 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:49,982 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 22:07:50,000 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 76 states and 92 transitions. Complement of second has 5 states. [2024-10-31 22:07:50,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:07:50,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 22:07:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-10-31 22:07:50,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-31 22:07:50,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:50,013 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:07:50,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:50,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:50,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-10-31 22:07:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:50,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:50,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:50,078 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:50,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:50,081 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 22:07:50,081 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:50,081 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 22:07:50,110 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 57 states and 70 transitions. Complement of second has 4 states. [2024-10-31 22:07:50,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:07:50,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 22:07:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2024-10-31 22:07:50,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-31 22:07:50,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:50,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 2 letters. [2024-10-31 22:07:50,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:50,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 22:07:50,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:50,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 70 transitions. [2024-10-31 22:07:50,116 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:07:50,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2024-10-31 22:07:50,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:07:50,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:07:50,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:07:50,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:07:50,117 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:07:50,117 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:07:50,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:50,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:07:50,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:07:50,120 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 22:07:50,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:50,121 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-31 22:07:50,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-31 22:07:50,122 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:07:50,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:07:50,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:07:50,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:07:50,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:07:50,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:07:50,122 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:07:50,122 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:07:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:07:50,123 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:07:50,123 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 22:07:50,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:07:50,123 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:07:50,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:07:50,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:07:50 BoogieIcfgContainer [2024-10-31 22:07:50,131 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:07:50,132 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:07:50,132 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:07:50,132 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:07:50,133 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:41" (3/4) ... [2024-10-31 22:07:50,135 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:07:50,136 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:07:50,137 INFO L158 Benchmark]: Toolchain (without parser) took 8965.36ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 124.7MB in the beginning and 149.2MB in the end (delta: -24.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2024-10-31 22:07:50,138 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 119.5MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:50,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.43ms. Allocated memory is still 157.3MB. Free memory was 124.7MB in the beginning and 124.9MB in the end (delta: -254.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:07:50,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.30ms. Allocated memory is still 157.3MB. Free memory was 124.9MB in the beginning and 123.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:50,138 INFO L158 Benchmark]: Boogie Preprocessor took 48.85ms. Allocated memory is still 157.3MB. Free memory was 123.6MB in the beginning and 122.2MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:07:50,139 INFO L158 Benchmark]: RCFGBuilder took 319.68ms. Allocated memory is still 157.3MB. Free memory was 122.2MB in the beginning and 112.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:07:50,139 INFO L158 Benchmark]: BuchiAutomizer took 8156.05ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 112.4MB in the beginning and 149.2MB in the end (delta: -36.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:50,139 INFO L158 Benchmark]: Witness Printer took 4.71ms. Allocated memory is still 188.7MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:50,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 119.5MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.43ms. Allocated memory is still 157.3MB. Free memory was 124.7MB in the beginning and 124.9MB in the end (delta: -254.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.30ms. Allocated memory is still 157.3MB. Free memory was 124.9MB in the beginning and 123.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.85ms. Allocated memory is still 157.3MB. Free memory was 123.6MB in the beginning and 122.2MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 319.68ms. Allocated memory is still 157.3MB. Free memory was 122.2MB in the beginning and 112.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 8156.05ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 112.4MB in the beginning and 149.2MB in the end (delta: -36.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.71ms. Allocated memory is still 188.7MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((long) -1 * x) and consists of 4 locations. One deterministic module has affine ranking function a and consists of 6 locations. One deterministic module has affine ranking function a and consists of 12 locations. One deterministic module has affine ranking function ((long) -1 * x) and consists of 3 locations. One nondeterministic module has affine ranking function ((long) -1 * x) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.0s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 6.0s. Construction of modules took 0.3s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 8. Automata minimization 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 73 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 84 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI1 SILT1 lasso1 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp90 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf95 smp81 dnf442 smp75 tf108 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 312ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:07:50,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-10-31 22:07:50,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:50,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:50,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02edb708-ddeb-4117-9fde-7596f6f4b6e6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE