./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/counting-bits-set.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b 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_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/counting-bits-set.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --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 0da38f7c0587f92bfa337016cd7efdda7fd5b8088b9cf2496e9fffda1f39f4b4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:11:05,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:11:05,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:11:06,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:11:06,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:11:06,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:11:06,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:11:06,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:11:06,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:11:06,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:11:06,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:11:06,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:11:06,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:11:06,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:11:06,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:11:06,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:11:06,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:11:06,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:11:06,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:11:06,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:11:06,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:11:06,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:11:06,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:11:06,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:11:06,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:11:06,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:11:06,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:11:06,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:11:06,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:11:06,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:11:06,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:11:06,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:11:06,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:11:06,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:11:06,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:11:06,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:11:06,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:11:06,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:11:06,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:11:06,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:11:06,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:11:06,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 12:11:06,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:11:06,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:11:06,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:11:06,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:11:06,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:11:06,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:11:06,127 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:11:06,127 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 12:11:06,128 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 12:11:06,128 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 12:11:06,129 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 12:11:06,130 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 12:11:06,130 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 12:11:06,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:11:06,130 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:11:06,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:11:06,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:11:06,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 12:11:06,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 12:11:06,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 12:11:06,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:11:06,132 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 12:11:06,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:11:06,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 12:11:06,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:11:06,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:11:06,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:11:06,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:11:06,135 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 12:11:06,136 INFO L138 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_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0da38f7c0587f92bfa337016cd7efdda7fd5b8088b9cf2496e9fffda1f39f4b4 [2022-11-20 12:11:06,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:11:06,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:11:06,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:11:06,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:11:06,495 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:11:06,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-bwb/counting-bits-set.i [2022-11-20 12:11:09,619 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:11:09,855 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:11:09,855 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/sv-benchmarks/c/termination-bwb/counting-bits-set.i [2022-11-20 12:11:09,862 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/data/7aa7b3705/766ee710decc47adbeb4ce7e5ffc3a8d/FLAGadf5e8ecd [2022-11-20 12:11:09,880 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/data/7aa7b3705/766ee710decc47adbeb4ce7e5ffc3a8d [2022-11-20 12:11:09,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:11:09,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:11:09,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:11:09,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:11:09,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:11:09,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:11:09" (1/1) ... [2022-11-20 12:11:09,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e088f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:09, skipping insertion in model container [2022-11-20 12:11:09,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:11:09" (1/1) ... [2022-11-20 12:11:09,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:11:09,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:11:10,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:11:10,099 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:11:10,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:11:10,133 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:11:10,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10 WrapperNode [2022-11-20 12:11:10,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:11:10,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:11:10,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:11:10,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:11:10,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,177 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-11-20 12:11:10,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:11:10,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:11:10,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:11:10,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:11:10,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,210 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:11:10,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:11:10,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:11:10,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:11:10,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (1/1) ... [2022-11-20 12:11:10,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:10,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:10,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:10,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 12:11:10,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:11:10,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:11:10,385 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:11:10,388 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:11:10,494 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:11:10,501 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:11:10,501 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:11:10,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:10 BoogieIcfgContainer [2022-11-20 12:11:10,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:11:10,505 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 12:11:10,505 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 12:11:10,509 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 12:11:10,509 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:11:10,510 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:11:09" (1/3) ... [2022-11-20 12:11:10,511 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1526c9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:11:10, skipping insertion in model container [2022-11-20 12:11:10,511 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:11:10,511 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:10" (2/3) ... [2022-11-20 12:11:10,511 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1526c9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:11:10, skipping insertion in model container [2022-11-20 12:11:10,512 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:11:10,512 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:10" (3/3) ... [2022-11-20 12:11:10,513 INFO L332 chiAutomizerObserver]: Analyzing ICFG counting-bits-set.i [2022-11-20 12:11:10,567 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 12:11:10,568 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 12:11:10,568 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 12:11:10,568 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 12:11:10,568 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 12:11:10,568 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 12:11:10,568 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 12:11:10,568 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 12:11:10,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2022-11-20 12:11:10,588 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:11:10,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:10,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:10,594 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 12:11:10,595 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 12:11:10,595 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 12:11:10,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2022-11-20 12:11:10,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:11:10,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:10,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:10,597 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 12:11:10,597 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 12:11:10,606 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~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;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 13#L12true assume ~v~0 >= 0;~c~0 := 0; 5#L13-3true [2022-11-20 12:11:10,606 INFO L750 eck$LassoCheckResult]: Loop: 5#L13-3true assume !!(0 != ~v~0); 6#L15true assume 0 == ~v~0;main_#t~nondet2#1 := 0; 10#L15-4true ~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1;~c~0 := ~c~0 + ~z~0; 11#L13-2true ~v~0 := ~v~0 / 2; 5#L13-3true [2022-11-20 12:11:10,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:10,613 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-20 12:11:10,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:10,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302321757] [2022-11-20 12:11:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:10,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:10,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:10,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:10,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:10,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1326982, now seen corresponding path program 1 times [2022-11-20 12:11:10,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:10,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919366760] [2022-11-20 12:11:10,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:10,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:10,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:10,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919366760] [2022-11-20 12:11:10,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919366760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:10,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:10,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:11:10,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040143158] [2022-11-20 12:11:10,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:10,835 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:11:10,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:10,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:11:10,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:11:10,897 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:10,940 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-20 12:11:10,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2022-11-20 12:11:10,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:11:10,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 8 states and 9 transitions. [2022-11-20 12:11:10,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-20 12:11:10,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-20 12:11:10,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2022-11-20 12:11:10,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:11:10,966 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-20 12:11:11,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2022-11-20 12:11:11,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-20 12:11:11,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 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) [2022-11-20 12:11:11,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-11-20 12:11:11,018 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-20 12:11:11,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:11:11,036 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-20 12:11:11,037 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 12:11:11,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2022-11-20 12:11:11,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:11:11,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:11,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:11,039 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 12:11:11,039 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:11:11,039 INFO L748 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 42#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 46#L12 assume ~v~0 >= 0;~c~0 := 0; 43#L13-3 [2022-11-20 12:11:11,039 INFO L750 eck$LassoCheckResult]: Loop: 43#L13-3 assume !!(0 != ~v~0); 44#L15 assume !(0 == ~v~0); 45#L15-2 assume 1 == ~v~0;main_#t~nondet2#1 := ~v~0; 39#L15-4 ~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1;~c~0 := ~c~0 + ~z~0; 40#L13-2 ~v~0 := ~v~0 / 2; 43#L13-3 [2022-11-20 12:11:11,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:11,041 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2022-11-20 12:11:11,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:11,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378230834] [2022-11-20 12:11:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:11,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:11,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:11,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:11,070 INFO L85 PathProgramCache]: Analyzing trace with hash 41192145, now seen corresponding path program 1 times [2022-11-20 12:11:11,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:11,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096927883] [2022-11-20 12:11:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:11,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:11,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:11,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:11,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:11,122 INFO L85 PathProgramCache]: Analyzing trace with hash 123261648, now seen corresponding path program 1 times [2022-11-20 12:11:11,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:11,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529223025] [2022-11-20 12:11:11,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:11,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:11,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:11,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:11,289 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:11:11,290 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:11:11,290 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:11:11,290 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:11:11,291 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:11:11,291 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:11,291 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:11:11,291 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:11:11,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration2_Loop [2022-11-20 12:11:11,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:11:11,292 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:11:11,320 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:11,376 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:11,498 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:11:11,499 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:11:11,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:11,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:11,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:11,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 12:11:11,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:11:11,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:11,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:11,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:11,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:11,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:11,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 12:11:11,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:11:11,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:11,619 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:11:11,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:11,632 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:11:11,632 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:11:11,632 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:11:11,632 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:11:11,632 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:11:11,632 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:11,633 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:11:11,633 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:11:11,633 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration2_Loop [2022-11-20 12:11:11,633 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:11:11,633 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:11:11,635 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:11,655 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:11,773 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:11:11,778 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:11:11,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:11,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:11,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:11,793 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 [2022-11-20 12:11:11,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 12:11:11,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:11:11,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:11:11,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:11:11,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:11:11,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:11:11,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:11:11,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:11:11,853 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:11:11,863 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 12:11:11,863 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 12:11:11,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:11,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:11,895 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:11,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 12:11:11,900 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:11:11,900 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 12:11:11,901 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:11:11,902 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2022-11-20 12:11:11,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:11,915 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 12:11:11,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:11:11,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:11:11,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:12,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:12,008 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 [2022-11-20 12:11:12,010 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:12,055 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 25 transitions. Complement of second has 7 states. [2022-11-20 12:11:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 12:11:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:12,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-11-20 12:11:12,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 5 letters. [2022-11-20 12:11:12,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:12,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 5 letters. [2022-11-20 12:11:12,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:12,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 10 letters. [2022-11-20 12:11:12,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:12,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 25 transitions. [2022-11-20 12:11:12,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:11:12,065 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 21 transitions. [2022-11-20 12:11:12,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-20 12:11:12,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-20 12:11:12,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2022-11-20 12:11:12,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:11:12,066 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-20 12:11:12,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2022-11-20 12:11:12,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2022-11-20 12:11:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-20 12:11:12,069 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-20 12:11:12,069 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-20 12:11:12,069 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 12:11:12,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2022-11-20 12:11:12,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:11:12,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:12,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:12,071 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-20 12:11:12,072 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:11:12,072 INFO L748 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 121#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 129#L12 assume ~v~0 >= 0;~c~0 := 0; 131#L13-3 assume !!(0 != ~v~0); 126#L15 assume !(0 == ~v~0); 130#L15-2 assume !(1 == ~v~0);main_#t~nondet2#1 := ~bitwiseAnd(~v~0, 1);assume ~v~0 < 0 || (main_#t~nondet2#1 <= ~v~0 && main_#t~nondet2#1 <= 1);assume main_#t~nondet2#1 >= 0;assume ~v~0 >= 0 || main_#t~nondet2#1 > 1 + ~v~0; 116#L15-4 [2022-11-20 12:11:12,072 INFO L750 eck$LassoCheckResult]: Loop: 116#L15-4 ~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1;~c~0 := ~c~0 + ~z~0; 117#L13-2 ~v~0 := ~v~0 / 2; 122#L13-3 assume !!(0 != ~v~0); 124#L15 assume !(0 == ~v~0); 127#L15-2 assume 1 == ~v~0;main_#t~nondet2#1 := ~v~0; 116#L15-4 [2022-11-20 12:11:12,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:12,073 INFO L85 PathProgramCache]: Analyzing trace with hash 889512752, now seen corresponding path program 1 times [2022-11-20 12:11:12,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:12,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256600612] [2022-11-20 12:11:12,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:12,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:12,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:12,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:12,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:12,092 INFO L85 PathProgramCache]: Analyzing trace with hash 52534605, now seen corresponding path program 2 times [2022-11-20 12:11:12,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:12,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878866703] [2022-11-20 12:11:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:12,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:12,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:12,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:12,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:12,111 INFO L85 PathProgramCache]: Analyzing trace with hash -52011138, now seen corresponding path program 1 times [2022-11-20 12:11:12,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:12,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061591973] [2022-11-20 12:11:12,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:12,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:12,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:12,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:12,181 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:11:12,181 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:11:12,181 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:11:12,181 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:11:12,182 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:11:12,182 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:12,182 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:11:12,182 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:11:12,182 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration3_Loop [2022-11-20 12:11:12,182 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:11:12,182 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:11:12,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:12,294 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:11:12,295 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:11:12,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:12,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:12,296 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:12,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:11:12,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:12,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 12:11:12,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:12,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:12,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:12,338 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:12,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 12:11:12,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:11:12,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:12,607 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:11:12,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:12,616 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:11:12,617 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:11:12,617 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:11:12,617 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:11:12,617 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:11:12,617 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:12,617 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:11:12,617 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:11:12,617 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration3_Loop [2022-11-20 12:11:12,617 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:11:12,617 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:11:12,621 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:12,765 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:11:12,766 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:11:12,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:12,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:12,768 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:12,778 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 [2022-11-20 12:11:12,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 12:11:12,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:11:12,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:11:12,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:11:12,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:11:12,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:11:12,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:11:12,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:11:12,807 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:11:12,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:12,850 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 12:11:12,851 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 12:11:12,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:12,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:12,868 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:12,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 12:11:12,919 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:11:12,920 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 12:11:12,920 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:11:12,920 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2022-11-20 12:11:12,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:12,930 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 12:11:12,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:11:12,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:11:12,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:13,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:13,064 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 [2022-11-20 12:11:13,064 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:13,108 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 7 states. [2022-11-20 12:11:13,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 12:11:13,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:13,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-20 12:11:13,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 5 letters. [2022-11-20 12:11:13,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:13,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 12:11:13,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:13,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 10 letters. [2022-11-20 12:11:13,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:13,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2022-11-20 12:11:13,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:11:13,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 33 transitions. [2022-11-20 12:11:13,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-11-20 12:11:13,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-20 12:11:13,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2022-11-20 12:11:13,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:11:13,120 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-11-20 12:11:13,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2022-11-20 12:11:13,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-11-20 12:11:13,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 25 states have internal predecessors, (31), 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) [2022-11-20 12:11:13,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-20 12:11:13,129 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-20 12:11:13,129 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-20 12:11:13,130 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 12:11:13,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 31 transitions. [2022-11-20 12:11:13,135 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:11:13,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:13,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:13,135 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 12:11:13,136 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:11:13,136 INFO L748 eck$LassoCheckResult]: Stem: 222#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 223#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 233#L12 assume ~v~0 >= 0;~c~0 := 0; 234#L13-3 assume !!(0 != ~v~0); 235#L15 assume !(0 == ~v~0); 237#L15-2 assume !(1 == ~v~0);main_#t~nondet2#1 := ~bitwiseAnd(~v~0, 1);assume ~v~0 < 0 || (main_#t~nondet2#1 <= ~v~0 && main_#t~nondet2#1 <= 1);assume main_#t~nondet2#1 >= 0;assume ~v~0 >= 0 || main_#t~nondet2#1 > 1 + ~v~0; 236#L15-4 ~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1;~c~0 := ~c~0 + ~z~0; 224#L13-2 ~v~0 := ~v~0 / 2; 225#L13-3 assume !!(0 != ~v~0); 228#L15 assume !(0 == ~v~0); 230#L15-2 assume !(1 == ~v~0);main_#t~nondet2#1 := ~bitwiseAnd(~v~0, 1);assume ~v~0 < 0 || (main_#t~nondet2#1 <= ~v~0 && main_#t~nondet2#1 <= 1);assume main_#t~nondet2#1 >= 0;assume ~v~0 >= 0 || main_#t~nondet2#1 > 1 + ~v~0; 218#L15-4 [2022-11-20 12:11:13,136 INFO L750 eck$LassoCheckResult]: Loop: 218#L15-4 ~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1;~c~0 := ~c~0 + ~z~0; 219#L13-2 ~v~0 := ~v~0 / 2; 243#L13-3 assume !!(0 != ~v~0); 242#L15 assume !(0 == ~v~0); 241#L15-2 assume 1 == ~v~0;main_#t~nondet2#1 := ~v~0; 218#L15-4 [2022-11-20 12:11:13,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:13,137 INFO L85 PathProgramCache]: Analyzing trace with hash -52011136, now seen corresponding path program 1 times [2022-11-20 12:11:13,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:13,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727157473] [2022-11-20 12:11:13,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:13,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:13,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:13,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:13,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:13,169 INFO L85 PathProgramCache]: Analyzing trace with hash 52534605, now seen corresponding path program 3 times [2022-11-20 12:11:13,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:13,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403738148] [2022-11-20 12:11:13,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:13,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:13,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:13,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:13,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:13,189 INFO L85 PathProgramCache]: Analyzing trace with hash 454432046, now seen corresponding path program 2 times [2022-11-20 12:11:13,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:13,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350246818] [2022-11-20 12:11:13,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:13,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:13,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:13,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:13,307 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:11:13,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:11:13,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:11:13,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:11:13,308 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:11:13,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:13,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:11:13,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:11:13,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration4_Loop [2022-11-20 12:11:13,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:11:13,309 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:11:13,312 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:13,434 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:11:13,435 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:11:13,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:13,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:13,440 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:13,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:11:13,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:13,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 12:11:13,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:13,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:13,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:13,484 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:13,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:11:13,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:13,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 12:11:13,729 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:11:13,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:13,735 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:11:13,735 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:11:13,735 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:11:13,735 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:11:13,735 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:11:13,735 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:13,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:11:13,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:11:13,736 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration4_Loop [2022-11-20 12:11:13,736 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:11:13,736 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:11:13,737 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:13,853 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:11:13,853 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:11:13,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:13,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:13,856 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:13,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 12:11:13,867 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 [2022-11-20 12:11:13,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:11:13,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:11:13,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:11:13,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:11:13,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:11:13,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:11:13,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:11:13,911 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:11:13,940 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 12:11:13,941 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 12:11:13,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:13,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:13,951 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:13,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 12:11:13,955 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:11:13,955 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 12:11:13,956 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:11:13,956 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2022-11-20 12:11:13,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:13,965 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 12:11:13,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:13,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:11:13,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:14,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:11:14,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:14,050 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 [2022-11-20 12:11:14,050 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:14,074 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 45 transitions. Complement of second has 7 states. [2022-11-20 12:11:14,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 12:11:14,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-20 12:11:14,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 12:11:14,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:14,078 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 12:11:14,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:14,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:11:14,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:14,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:11:14,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:14,188 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 12:11:14,189 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:14,220 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 45 transitions. Complement of second has 7 states. [2022-11-20 12:11:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 12:11:14,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:14,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-20 12:11:14,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 12:11:14,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:14,223 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 12:11:14,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:14,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:11:14,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:14,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:11:14,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:14,315 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 12:11:14,315 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:14,340 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 52 transitions. Complement of second has 11 states. [2022-11-20 12:11:14,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 12:11:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-20 12:11:14,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 12:11:14,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:14,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 5 letters. [2022-11-20 12:11:14,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:14,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 10 letters. [2022-11-20 12:11:14,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:14,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 52 transitions. [2022-11-20 12:11:14,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-20 12:11:14,348 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 33 states and 39 transitions. [2022-11-20 12:11:14,348 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-20 12:11:14,349 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-20 12:11:14,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 39 transitions. [2022-11-20 12:11:14,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:11:14,349 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-11-20 12:11:14,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 39 transitions. [2022-11-20 12:11:14,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 19. [2022-11-20 12:11:14,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 states have internal predecessors, (23), 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) [2022-11-20 12:11:14,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-20 12:11:14,352 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-20 12:11:14,352 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-20 12:11:14,353 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 12:11:14,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2022-11-20 12:11:14,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-20 12:11:14,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:14,354 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:14,354 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:11:14,354 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:11:14,355 INFO L748 eck$LassoCheckResult]: Stem: 554#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 555#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 562#L12 assume ~v~0 >= 0;~c~0 := 0; 563#L13-3 assume !!(0 != ~v~0); 558#L15 [2022-11-20 12:11:14,355 INFO L750 eck$LassoCheckResult]: Loop: 558#L15 assume !(0 == ~v~0); 560#L15-2 assume !(1 == ~v~0);main_#t~nondet2#1 := ~bitwiseAnd(~v~0, 1);assume ~v~0 < 0 || (main_#t~nondet2#1 <= ~v~0 && main_#t~nondet2#1 <= 1);assume main_#t~nondet2#1 >= 0;assume ~v~0 >= 0 || main_#t~nondet2#1 > 1 + ~v~0; 550#L15-4 ~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1;~c~0 := ~c~0 + ~z~0; 552#L13-2 ~v~0 := ~v~0 / 2; 556#L13-3 assume !!(0 != ~v~0); 558#L15 [2022-11-20 12:11:14,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:14,356 INFO L85 PathProgramCache]: Analyzing trace with hash 925611, now seen corresponding path program 1 times [2022-11-20 12:11:14,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:14,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305605351] [2022-11-20 12:11:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:14,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:14,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:14,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:14,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:14,367 INFO L85 PathProgramCache]: Analyzing trace with hash 45962597, now seen corresponding path program 1 times [2022-11-20 12:11:14,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:14,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034874277] [2022-11-20 12:11:14,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:14,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:14,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:14,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:14,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:14,384 INFO L85 PathProgramCache]: Analyzing trace with hash -473796613, now seen corresponding path program 2 times [2022-11-20 12:11:14,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:14,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327566486] [2022-11-20 12:11:14,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:14,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:14,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:14,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:14,502 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:11:14,502 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:11:14,503 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:11:14,503 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:11:14,503 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:11:14,503 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:14,503 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:11:14,503 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:11:14,503 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration5_Loop [2022-11-20 12:11:14,503 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:11:14,504 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:11:14,505 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:14,527 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:14,743 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:11:14,743 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:11:14,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:14,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:14,749 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:14,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:11:14,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:14,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 12:11:14,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:14,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:14,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:14,818 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:14,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:11:14,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:14,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 12:11:15,080 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:11:15,081 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~v~0=-1, ~z~0=0, ~c~0=0} Honda state: {~v~0=-1, ~z~0=0, ~c~0=0} Generalized eigenvectors: [{~v~0=0, ~z~0=2, ~c~0=1}, {~v~0=0, ~z~0=1, ~c~0=2}, {~v~0=0, ~z~0=0, ~c~0=0}] Lambdas: [0, 2, 14] Nus: [1, 1] [2022-11-20 12:11:15,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:15,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:15,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:15,117 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:15,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:11:15,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:15,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 12:11:15,185 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:11:15,185 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:11:15,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:15,237 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:11:15,238 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:11:15,238 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:11:15,238 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:11:15,238 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:11:15,238 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:15,238 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:11:15,238 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:11:15,238 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration5_Lasso [2022-11-20 12:11:15,239 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:11:15,239 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:11:15,240 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:15,271 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:15,277 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:15,280 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:15,284 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:15,287 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:15,552 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:11:15,552 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:11:15,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:15,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:15,555 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:15,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:11:15,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:15,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 12:11:15,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:15,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:15,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:15,623 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:15,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:11:15,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:11:15,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 12:11:15,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:15,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-20 12:11:15,987 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:11:15,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:15,992 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:11:15,992 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:11:15,992 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:11:15,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:11:15,993 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:11:15,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:15,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:11:15,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:11:15,993 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration5_Lasso [2022-11-20 12:11:15,993 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:11:15,993 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:11:15,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:16,000 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:16,041 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:16,043 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:16,046 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:16,049 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:11:16,340 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:11:16,340 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:11:16,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:16,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:16,367 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:16,384 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 [2022-11-20 12:11:16,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 12:11:16,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:11:16,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:11:16,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:11:16,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:11:16,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:11:16,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:11:16,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:11:16,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:11:16,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:16,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:16,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:16,416 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:16,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 12:11:16,425 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 [2022-11-20 12:11:16,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:11:16,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:11:16,437 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 12:11:16,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:11:16,457 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-20 12:11:16,457 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-20 12:11:16,492 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:11:16,526 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-11-20 12:11:16,526 INFO L444 ModelExtractionUtils]: 11 out of 21 variables were initially zero. Simplification set additionally 6 variables to zero. [2022-11-20 12:11:16,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:16,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:16,532 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:16,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:11:16,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 12:11:16,565 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-11-20 12:11:16,565 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:11:16,565 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [1*~v~0 >= 0] [2022-11-20 12:11:16,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:16,572 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-11-20 12:11:16,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:16,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:11:16,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:16,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:11:16,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:16,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:16,749 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-11-20 12:11:16,749 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 6 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) [2022-11-20 12:11:16,795 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 6. 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 40 states and 47 transitions. Complement of second has 7 states. [2022-11-20 12:11:16,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 12:11:16,796 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) [2022-11-20 12:11:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-20 12:11:16,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 4 letters. Loop has 5 letters. [2022-11-20 12:11:16,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:16,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 5 letters. [2022-11-20 12:11:16,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:16,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 4 letters. Loop has 10 letters. [2022-11-20 12:11:16,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:11:16,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 47 transitions. [2022-11-20 12:11:16,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 12:11:16,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2022-11-20 12:11:16,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 12:11:16,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 12:11:16,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 12:11:16,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:11:16,800 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:11:16,801 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:11:16,801 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:11:16,801 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 12:11:16,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:11:16,801 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 12:11:16,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 12:11:16,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:11:16 BoogieIcfgContainer [2022-11-20 12:11:16,809 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 12:11:16,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:11:16,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:11:16,810 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:11:16,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:10" (3/4) ... [2022-11-20 12:11:16,813 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:11:16,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:11:16,814 INFO L158 Benchmark]: Toolchain (without parser) took 6926.21ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 104.6MB in the beginning and 129.2MB in the end (delta: -24.6MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-11-20 12:11:16,815 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 148.9MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:11:16,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.28ms. Allocated memory is still 148.9MB. Free memory was 104.3MB in the beginning and 95.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:11:16,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.52ms. Allocated memory is still 148.9MB. Free memory was 95.2MB in the beginning and 93.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:11:16,816 INFO L158 Benchmark]: Boogie Preprocessor took 34.15ms. Allocated memory is still 148.9MB. Free memory was 93.7MB in the beginning and 92.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:11:16,816 INFO L158 Benchmark]: RCFGBuilder took 286.66ms. Allocated memory is still 148.9MB. Free memory was 92.5MB in the beginning and 83.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:11:16,817 INFO L158 Benchmark]: BuchiAutomizer took 6304.57ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 83.4MB in the beginning and 130.3MB in the end (delta: -46.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-11-20 12:11:16,817 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 205.5MB. Free memory was 130.3MB in the beginning and 129.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:11:16,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 148.9MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.28ms. Allocated memory is still 148.9MB. Free memory was 104.3MB in the beginning and 95.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.52ms. Allocated memory is still 148.9MB. Free memory was 95.2MB in the beginning and 93.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.15ms. Allocated memory is still 148.9MB. Free memory was 93.7MB in the beginning and 92.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.66ms. Allocated memory is still 148.9MB. Free memory was 92.5MB in the beginning and 83.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6304.57ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 83.4MB in the beginning and 130.3MB in the end (delta: -46.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 205.5MB. Free memory was 130.3MB in the beginning and 129.2MB in the end (delta: 1.0MB). 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function v and consists of 4 locations. One deterministic module has affine ranking function v and consists of 4 locations. One deterministic module has affine ranking function v and consists of 5 locations. One nondeterministic module has affine ranking function v and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 5.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 64 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div244 bol100 ite100 ukn100 eq134 hnf94 smp66 dnf244 smp75 tf103 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 150ms VariablesStem: 3 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 12:11:16,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:17,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6d8db4-b3e6-4ed9-a33a-9a6bebc65162/bin/uautomizer-ug76WZFUDN/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