./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/reverse-bits1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/reverse-bits1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3e71bbd54e7c2fb1c47dcb82c9eb8e40d9fc6da26d5ad2a71ce148ceb3cd82ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:49,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:49,690 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:54:49,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:49,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:49,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:49,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:49,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:49,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:49,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:49,762 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:49,763 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:54:49,763 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:54:49,765 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:54:49,766 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:54:49,766 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:54:49,767 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:54:49,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:49,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:54:49,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:54:49,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:49,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:54:49,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:54:49,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:54:49,772 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:54:49,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:54:49,773 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:54:49,774 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:49,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:49,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:49,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:49,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:54:49,777 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:54:49,777 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_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e71bbd54e7c2fb1c47dcb82c9eb8e40d9fc6da26d5ad2a71ce148ceb3cd82ca [2023-11-19 07:54:50,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:50,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:50,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:50,212 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:50,213 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:50,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-bwb/reverse-bits1.i [2023-11-19 07:54:53,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:54,157 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:54,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/sv-benchmarks/c/termination-bwb/reverse-bits1.i [2023-11-19 07:54:54,168 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/data/892bd1b45/cc1980d67e654b9da0cd2edbffdf15d5/FLAG9fe570fef [2023-11-19 07:54:54,191 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/data/892bd1b45/cc1980d67e654b9da0cd2edbffdf15d5 [2023-11-19 07:54:54,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:54,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:54,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:54,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:54,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:54,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159a68a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54, skipping insertion in model container [2023-11-19 07:54:54,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:54,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:54,450 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:54,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:54,486 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:54,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54 WrapperNode [2023-11-19 07:54:54,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:54,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:54,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:54,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:54,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,533 INFO L138 Inliner]: procedures = 5, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2023-11-19 07:54:54,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:54,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:54,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:54,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:54,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,556 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:54,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:54,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:54,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:54,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:54,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:54,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:54,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:54,749 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:54,752 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:54,962 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:54,972 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:54,972 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:54:54,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:54 BoogieIcfgContainer [2023-11-19 07:54:54,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:54,978 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:54:54,979 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:54:54,982 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:54:54,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:54:54,983 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:54:54" (1/3) ... [2023-11-19 07:54:54,984 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@757c4614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:54:54, skipping insertion in model container [2023-11-19 07:54:54,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:54:54,985 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54" (2/3) ... [2023-11-19 07:54:54,985 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@757c4614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:54:54, skipping insertion in model container [2023-11-19 07:54:54,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:54:54,986 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:54" (3/3) ... [2023-11-19 07:54:54,987 INFO L332 chiAutomizerObserver]: Analyzing ICFG reverse-bits1.i [2023-11-19 07:54:55,053 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:54:55,053 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:54:55,053 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:54:55,054 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:54:55,054 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:54:55,054 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:54:55,054 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:54:55,055 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:54:55,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:55,080 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-19 07:54:55,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:54:55,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:54:55,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:54:55,085 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:54:55,086 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:54:55,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:55,088 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-19 07:54:55,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:54:55,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:54:55,089 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:54:55,089 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:54:55,097 INFO L748 eck$LassoCheckResult]: Stem: 15#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~r~0 := 0;~s~0 := 31;~z~0 := 0;~y~0 := 0;~x~0 := 0;~n~0 := 0; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~nondet7#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~n~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;~x~0 := main_#t~nondet3#1;havoc main_#t~nondet3#1;~r~0 := ~v~0;~y~0 := ~v~0 - 1; 12#L18-6true [2023-11-19 07:54:55,097 INFO L750 eck$LassoCheckResult]: Loop: 12#L18-6true assume 0 == ~x~0 || 0 == ~v~0 - ~y~0 - 1;main_#t~nondet4#1 := 0; 13#L18-4true assume !!(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;~y~0 := 1; 12#L18-6true [2023-11-19 07:54:55,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:55,104 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:54:55,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:55,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090320749] [2023-11-19 07:54:55,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:55,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:55,241 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:55,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:55,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:55,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1262, now seen corresponding path program 1 times [2023-11-19 07:54:55,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:55,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312392867] [2023-11-19 07:54:55,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:55,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:55,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:55,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:55,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312392867] [2023-11-19 07:54:55,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312392867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:55,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:55,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:54:55,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683786843] [2023-11-19 07:54:55,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:55,437 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:54:55,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:55,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:55,485 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:55,544 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2023-11-19 07:54:55,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2023-11-19 07:54:55,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-19 07:54:55,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 11 states and 16 transitions. [2023-11-19 07:54:55,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-19 07:54:55,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-19 07:54:55,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2023-11-19 07:54:55,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:55,560 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-11-19 07:54:55,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2023-11-19 07:54:55,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-19 07:54:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 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) [2023-11-19 07:54:55,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2023-11-19 07:54:55,598 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-11-19 07:54:55,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:55,613 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-11-19 07:54:55,613 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:54:55,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2023-11-19 07:54:55,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-19 07:54:55,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:54:55,617 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:54:55,617 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:54:55,617 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:54:55,618 INFO L748 eck$LassoCheckResult]: Stem: 55#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~r~0 := 0;~s~0 := 31;~z~0 := 0;~y~0 := 0;~x~0 := 0;~n~0 := 0; 56#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~nondet7#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~n~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;~x~0 := main_#t~nondet3#1;havoc main_#t~nondet3#1;~r~0 := ~v~0;~y~0 := ~v~0 - 1; 50#L18-6 [2023-11-19 07:54:55,619 INFO L750 eck$LassoCheckResult]: Loop: 50#L18-6 assume !(0 == ~x~0 || 0 == ~v~0 - ~y~0 - 1); 48#L18-2 assume !(~x~0 == ~v~0 - ~y~0 - 1);assume (~x~0 < 0 && ~v~0 - ~y~0 - 1 >= 0) || main_#t~nondet4#1 <= ~x~0;assume (~x~0 >= 0 && ~v~0 - ~y~0 - 1 < 0) || main_#t~nondet4#1 <= ~v~0 - ~y~0 - 1;assume (~x~0 < 0 && ~v~0 - ~y~0 - 1 < 0) || main_#t~nondet4#1 >= 0;assume (~x~0 >= 0 && ~v~0 - ~y~0 - 1 >= 0) || main_#t~nondet4#1 > ~x~0 + (~v~0 - ~y~0 - 1);assume main_#t~nondet4#1 >= -2147483648; 49#L18-4 assume !!(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;~y~0 := 1; 50#L18-6 [2023-11-19 07:54:55,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:55,620 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-19 07:54:55,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:55,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474407639] [2023-11-19 07:54:55,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:55,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:55,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:55,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:55,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:55,672 INFO L85 PathProgramCache]: Analyzing trace with hash 40880, now seen corresponding path program 1 times [2023-11-19 07:54:55,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:55,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208904309] [2023-11-19 07:54:55,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:55,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:55,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:55,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:55,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:55,758 INFO L85 PathProgramCache]: Analyzing trace with hash 28699822, now seen corresponding path program 1 times [2023-11-19 07:54:55,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:55,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323156649] [2023-11-19 07:54:55,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:55,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:55,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:55,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:55,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323156649] [2023-11-19 07:54:55,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323156649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:55,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:55,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:54:55,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166993495] [2023-11-19 07:54:55,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:56,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:56,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:56,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:56,451 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2023-11-19 07:54:56,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:56,469 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2023-11-19 07:54:56,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2023-11-19 07:54:56,474 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:54:56,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 11 transitions. [2023-11-19 07:54:56,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-19 07:54:56,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-19 07:54:56,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2023-11-19 07:54:56,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:56,476 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-19 07:54:56,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2023-11-19 07:54:56,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-19 07:54:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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) [2023-11-19 07:54:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-11-19 07:54:56,480 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-19 07:54:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:56,482 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-19 07:54:56,484 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:54:56,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2023-11-19 07:54:56,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:54:56,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:54:56,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:54:56,492 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-19 07:54:56,493 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:54:56,493 INFO L748 eck$LassoCheckResult]: Stem: 81#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~r~0 := 0;~s~0 := 31;~z~0 := 0;~y~0 := 0;~x~0 := 0;~n~0 := 0; 82#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~nondet7#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~n~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;~x~0 := main_#t~nondet3#1;havoc main_#t~nondet3#1;~r~0 := ~v~0;~y~0 := ~v~0 - 1; 76#L18-6 assume 0 == ~x~0 || 0 == ~v~0 - ~y~0 - 1;main_#t~nondet4#1 := 0; 77#L18-4 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1; 78#L18-7 ~v~0 := ~v~0 / 2; 80#L22-2 [2023-11-19 07:54:56,493 INFO L750 eck$LassoCheckResult]: Loop: 80#L22-2 assume !!(~v~0 > 0);~r~0 := 2 * ~r~0;~z~0 := ~v~0 % 2; 79#L25 assume 0 == ~r~0 || ~r~0 == ~z~0;main_#t~nondet5#1 := ~z~0; 75#L25-4 ~r~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_#t~post6#1 := ~s~0;~s~0 := main_#t~post6#1 - 1;havoc main_#t~post6#1;~v~0 := ~v~0 / 2; 80#L22-2 [2023-11-19 07:54:56,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:56,494 INFO L85 PathProgramCache]: Analyzing trace with hash 28698028, now seen corresponding path program 1 times [2023-11-19 07:54:56,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:56,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859615413] [2023-11-19 07:54:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:56,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:56,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:56,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:56,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:56,527 INFO L85 PathProgramCache]: Analyzing trace with hash 64651, now seen corresponding path program 1 times [2023-11-19 07:54:56,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:56,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463672264] [2023-11-19 07:54:56,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:56,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:56,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:56,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:56,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:56,572 INFO L85 PathProgramCache]: Analyzing trace with hash 244495104, now seen corresponding path program 1 times [2023-11-19 07:54:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:56,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097726040] [2023-11-19 07:54:56,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:56,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:56,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:56,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097726040] [2023-11-19 07:54:56,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097726040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:56,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:56,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:54:56,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382401968] [2023-11-19 07:54:56,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:56,889 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:54:56,890 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:54:56,890 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:54:56,891 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:54:56,891 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:54:56,891 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:56,891 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:54:56,891 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:54:56,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: reverse-bits1.i_Iteration3_Loop [2023-11-19 07:54:56,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:54:56,892 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:54:56,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:56,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:56,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:56,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:57,114 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:54:57,115 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:54:57,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:54:57,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:54:57,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:54:57,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:54:57,169 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:54:57,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:57,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:54:57,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:54:57,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:54:57,227 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:54:57,228 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:54:57,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:57,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:54:57,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:54:57,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:54:57,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:57,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,305 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:54:57,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:54:57,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:54:57,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:54:57,347 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~s~0=0} Honda state: {~s~0=0} Generalized eigenvectors: [{~s~0=-4}, {~s~0=4}, {~s~0=-1}] Lambdas: [1, 1, 1] Nus: [0, 0] [2023-11-19 07:54:57,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:57,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:54:57,375 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:54:57,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:54:57,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:57,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,437 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:54:57,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:54:57,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:54:57,543 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:54:57,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:57,552 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:54:57,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:54:57,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:54:57,553 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:54:57,553 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:54:57,553 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,553 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:54:57,553 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:54:57,553 INFO L133 ssoRankerPreferences]: Filename of dumped script: reverse-bits1.i_Iteration3_Loop [2023-11-19 07:54:57,553 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:54:57,553 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:54:57,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:57,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:57,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:57,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:57,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:54:57,741 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:54:57,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,744 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:54:57,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:54:57,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:54:57,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:54:57,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:54:57,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:54:57,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:54:57,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:54:57,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:54:57,774 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:54:57,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:57,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,806 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,821 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:54:57,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:54:57,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:54:57,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:54:57,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:54:57,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:54:57,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:54:57,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:54:57,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:54:57,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:54:57,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:57,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,876 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:54:57,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:54:57,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:54:57,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:54:57,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:54:57,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:54:57,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:54:57,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:54:57,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:54:57,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:54:57,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:57,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:57,928 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:57,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:54:57,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:54:57,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:54:57,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:54:57,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:54:57,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:54:57,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:54:57,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:54:57,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:54:57,962 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:54:57,988 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-11-19 07:54:57,989 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-19 07:54:57,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:57,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:58,017 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:58,021 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:54:58,021 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:54:58,021 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:54:58,022 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2023-11-19 07:54:58,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:54:58,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:58,050 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:54:58,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:58,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:54:58,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:58,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:54:58,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:58,139 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:54:58,140 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:58,178 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 4 states. [2023-11-19 07:54:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:54:58,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:58,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-11-19 07:54:58,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-19 07:54:58,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:54:58,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2023-11-19 07:54:58,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:54:58,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2023-11-19 07:54:58,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:54:58,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-11-19 07:54:58,185 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:54:58,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2023-11-19 07:54:58,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:54:58,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:54:58,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:54:58,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:58,186 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:54:58,186 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:54:58,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:58,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:54:58,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:58,187 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:58,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:58,188 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-19 07:54:58,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-19 07:54:58,188 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:54:58,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:54:58,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:54:58,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:54:58,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:54:58,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:58,189 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:54:58,189 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:54:58,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:54:58,190 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:54:58,190 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:54:58,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:54:58,191 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:54:58,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:54:58,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:54:58 BoogieIcfgContainer [2023-11-19 07:54:58,199 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:54:58,200 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:54:58,200 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:54:58,200 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:54:58,201 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:54" (3/4) ... [2023-11-19 07:54:58,203 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:54:58,204 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:54:58,205 INFO L158 Benchmark]: Toolchain (without parser) took 4004.43ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 98.9MB in the beginning and 93.9MB in the end (delta: 5.0MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2023-11-19 07:54:58,205 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 146.8MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:58,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.26ms. Allocated memory is still 146.8MB. Free memory was 98.9MB in the beginning and 88.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:54:58,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.92ms. Allocated memory is still 146.8MB. Free memory was 88.9MB in the beginning and 87.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:54:58,207 INFO L158 Benchmark]: Boogie Preprocessor took 31.95ms. Allocated memory is still 146.8MB. Free memory was 87.9MB in the beginning and 86.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:58,207 INFO L158 Benchmark]: RCFGBuilder took 409.13ms. Allocated memory is still 146.8MB. Free memory was 86.3MB in the beginning and 75.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:54:58,208 INFO L158 Benchmark]: BuchiAutomizer took 3220.84ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 75.9MB in the beginning and 93.9MB in the end (delta: -18.1MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2023-11-19 07:54:58,209 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 205.5MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:58,211 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 146.8MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.26ms. Allocated memory is still 146.8MB. Free memory was 98.9MB in the beginning and 88.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.92ms. Allocated memory is still 146.8MB. Free memory was 88.9MB in the beginning and 87.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.95ms. Allocated memory is still 146.8MB. Free memory was 87.9MB in the beginning and 86.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 409.13ms. Allocated memory is still 146.8MB. Free memory was 86.3MB in the beginning and 75.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3220.84ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 75.9MB in the beginning and 93.9MB in the end (delta: -18.1MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 205.5MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function v and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 42 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp80 ukn100 mio100 lsp100 div442 bol100 ite100 ukn100 eq134 hnf95 smp46 dnf100 smp100 tf103 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:54:58,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-19 07:54:58,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51c17c1-fb0c-4b92-8788-6b31ad61cc6c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE