./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 8393723b 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_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/counting-bits-set.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 19:59:18,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:59:18,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:59:18,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:59:18,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:59:18,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:59:18,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:59:18,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:59:18,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:59:18,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:59:18,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:59:18,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:59:18,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:59:18,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:59:18,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:59:18,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:59:18,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:59:18,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:59:18,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:59:18,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:59:18,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:59:18,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:59:18,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:59:18,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:59:18,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:59:18,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:59:18,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:59:18,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:59:18,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:59:18,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:59:18,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:59:18,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:59:18,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:59:18,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:59:18,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:59:18,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:59:18,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:59:18,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:59:18,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:59:18,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:59:18,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:59:18,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 19:59:18,369 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:59:18,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:59:18,371 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:59:18,371 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:59:18,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:59:18,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:59:18,388 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:59:18,388 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:59:18,388 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:59:18,389 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:59:18,390 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:59:18,390 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:59:18,391 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:59:18,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:59:18,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:59:18,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:59:18,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:59:18,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:59:18,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:59:18,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:59:18,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:59:18,394 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:59:18,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:59:18,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:59:18,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:59:18,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:59:18,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:59:18,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:59:18,396 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:59:18,397 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_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0da38f7c0587f92bfa337016cd7efdda7fd5b8088b9cf2496e9fffda1f39f4b4 [2022-11-18 19:59:18,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:59:18,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:59:18,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:59:18,723 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:59:18,724 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:59:18,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-bwb/counting-bits-set.i [2022-11-18 19:59:18,789 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/data/11810e527/12a0e264fc62489fa8ec945a7bbdf155/FLAGaedacc859 [2022-11-18 19:59:19,256 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:59:19,257 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/sv-benchmarks/c/termination-bwb/counting-bits-set.i [2022-11-18 19:59:19,271 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/data/11810e527/12a0e264fc62489fa8ec945a7bbdf155/FLAGaedacc859 [2022-11-18 19:59:19,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/data/11810e527/12a0e264fc62489fa8ec945a7bbdf155 [2022-11-18 19:59:19,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:59:19,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:59:19,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:59:19,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:59:19,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:59:19,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b20dc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19, skipping insertion in model container [2022-11-18 19:59:19,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:59:19,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:59:19,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:59:19,875 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:59:19,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:59:19,898 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:59:19,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19 WrapperNode [2022-11-18 19:59:19,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:59:19,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:59:19,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:59:19,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:59:19,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,933 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-18 19:59:19,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:59:19,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:59:19,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:59:19,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:59:19,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,957 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:59:19,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:59:19,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:59:19,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:59:19,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (1/1) ... [2022-11-18 19:59:19,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:19,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:20,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:20,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:59:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:59:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:59:20,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:59:20,141 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:59:20,260 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:59:20,268 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:59:20,268 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:59:20,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:59:20 BoogieIcfgContainer [2022-11-18 19:59:20,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:59:20,271 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:59:20,278 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:59:20,282 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:59:20,283 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:59:20,283 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:59:19" (1/3) ... [2022-11-18 19:59:20,284 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e818c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:59:20, skipping insertion in model container [2022-11-18 19:59:20,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:59:20,284 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:59:19" (2/3) ... [2022-11-18 19:59:20,285 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e818c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:59:20, skipping insertion in model container [2022-11-18 19:59:20,285 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:59:20,285 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:59:20" (3/3) ... [2022-11-18 19:59:20,287 INFO L332 chiAutomizerObserver]: Analyzing ICFG counting-bits-set.i [2022-11-18 19:59:20,344 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:59:20,344 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:59:20,344 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:59:20,345 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:59:20,345 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:59:20,345 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:59:20,345 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:59:20,345 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:59:20,350 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) [2022-11-18 19:59:20,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:59:20,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:59:20,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:59:20,376 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 19:59:20,377 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 19:59:20,377 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:59:20,377 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) [2022-11-18 19:59:20,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:59:20,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:59:20,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:59:20,380 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 19:59:20,380 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 19:59:20,397 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~c~0 := 0;~v~0 := 0;~y~0 := 0;~z~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;~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 [2022-11-18 19:59:20,397 INFO L750 eck$LassoCheckResult]: Loop: 5#L13-3true assume !!(0 != ~v~0); 6#L15true assume 0 == ~v~0;~z~0 := 0; 10#L15-4true ~c~0 := ~c~0 + ~z~0; 11#L13-2true ~v~0 := ~v~0 / 2; 5#L13-3true [2022-11-18 19:59:20,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:20,404 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-18 19:59:20,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:20,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031418664] [2022-11-18 19:59:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:20,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:20,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:20,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:20,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:20,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1326982, now seen corresponding path program 1 times [2022-11-18 19:59:20,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:20,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395401297] [2022-11-18 19:59:20,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:20,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:20,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:59:20,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:20,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395401297] [2022-11-18 19:59:20,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395401297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:20,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:20,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:59:20,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825029284] [2022-11-18 19:59:20,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:20,593 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:59:20,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:20,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:59:20,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:59:20,639 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) [2022-11-18 19:59:20,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:59:20,672 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-18 19:59:20,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2022-11-18 19:59:20,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:59:20,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 8 states and 9 transitions. [2022-11-18 19:59:20,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-18 19:59:20,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-18 19:59:20,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2022-11-18 19:59:20,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:20,680 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-18 19:59:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2022-11-18 19:59:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-18 19:59:20,707 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) [2022-11-18 19:59:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-11-18 19:59:20,708 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-18 19:59:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:59:20,714 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-18 19:59:20,714 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:59:20,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2022-11-18 19:59:20,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:59:20,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:59:20,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:59:20,716 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 19:59:20,716 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 19:59:20,716 INFO L748 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~c~0 := 0;~v~0 := 0;~y~0 := 0;~z~0 := 0; 42#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 46#L12 assume ~v~0 >= 0;~c~0 := 0; 43#L13-3 [2022-11-18 19:59:20,716 INFO L750 eck$LassoCheckResult]: Loop: 43#L13-3 assume !!(0 != ~v~0); 44#L15 assume !(0 == ~v~0); 45#L15-2 assume 1 == ~v~0;~z~0 := ~v~0; 39#L15-4 ~c~0 := ~c~0 + ~z~0; 40#L13-2 ~v~0 := ~v~0 / 2; 43#L13-3 [2022-11-18 19:59:20,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:20,717 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2022-11-18 19:59:20,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:20,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294015740] [2022-11-18 19:59:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:20,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:20,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:20,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:20,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:20,732 INFO L85 PathProgramCache]: Analyzing trace with hash 41192145, now seen corresponding path program 1 times [2022-11-18 19:59:20,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:20,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811375816] [2022-11-18 19:59:20,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:20,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:20,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:20,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:20,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:20,751 INFO L85 PathProgramCache]: Analyzing trace with hash 123261648, now seen corresponding path program 1 times [2022-11-18 19:59:20,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:20,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388960216] [2022-11-18 19:59:20,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:20,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:20,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:20,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:20,870 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:59:20,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:59:20,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:59:20,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:59:20,872 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:59:20,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:20,873 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:59:20,873 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:59:20,873 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration2_Loop [2022-11-18 19:59:20,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:59:20,874 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:59:20,892 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:21,047 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:59:21,047 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:59:21,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:21,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:21,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:21,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:59:21,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:21,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 19:59:21,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:21,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:21,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:21,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:21,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:59:21,120 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:21,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 19:59:21,173 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:59:21,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:21,179 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:59:21,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:59:21,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:59:21,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:59:21,179 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:59:21,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:21,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:59:21,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:59:21,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration2_Loop [2022-11-18 19:59:21,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:59:21,180 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:59:21,182 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:21,346 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:59:21,351 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:59:21,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:21,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:21,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:21,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 19:59:21,362 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 [2022-11-18 19:59:21,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:59:21,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:59:21,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:59:21,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:59:21,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:59:21,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:59:21,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:59:21,410 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:59:21,420 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-18 19:59:21,420 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:59:21,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:21,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:21,426 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:21,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 19:59:21,431 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:59:21,431 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:59:21,431 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:59:21,432 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2022-11-18 19:59:21,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-18 19:59:21,443 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:59:21,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:21,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:59:21,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:21,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:59:21,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:21,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:59:21,603 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 [2022-11-18 19:59:21,606 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) [2022-11-18 19:59:21,676 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. [2022-11-18 19:59:21,678 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 [2022-11-18 19:59:21,679 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) [2022-11-18 19:59:21,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-11-18 19:59:21,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 5 letters. [2022-11-18 19:59:21,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:21,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 5 letters. [2022-11-18 19:59:21,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:21,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 10 letters. [2022-11-18 19:59:21,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:21,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 25 transitions. [2022-11-18 19:59:21,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:59:21,695 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 21 transitions. [2022-11-18 19:59:21,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-18 19:59:21,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-18 19:59:21,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2022-11-18 19:59:21,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:59:21,697 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-18 19:59:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2022-11-18 19:59:21,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2022-11-18 19:59:21,702 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) [2022-11-18 19:59:21,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-18 19:59:21,704 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-18 19:59:21,704 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-18 19:59:21,704 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:59:21,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2022-11-18 19:59:21,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:59:21,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:59:21,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:59:21,711 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:59:21,712 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 19:59:21,713 INFO L748 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~c~0 := 0;~v~0 := 0;~y~0 := 0;~z~0 := 0; 121#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 129#L12 assume ~v~0 >= 0;~c~0 := 0; 131#L13-3 assume !!(0 != ~v~0); 126#L15 assume !(0 == ~v~0); 130#L15-2 assume !(1 == ~v~0);~z~0 := ~bitwiseAnd(~v~0, 1);assume ~v~0 < 0 || (~z~0 <= ~v~0 && ~z~0 <= 1);assume ~z~0 >= 0;assume ~v~0 >= 0 || ~z~0 > 1 + ~v~0; 116#L15-4 [2022-11-18 19:59:21,713 INFO L750 eck$LassoCheckResult]: Loop: 116#L15-4 ~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;~z~0 := ~v~0; 116#L15-4 [2022-11-18 19:59:21,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:21,723 INFO L85 PathProgramCache]: Analyzing trace with hash 889512752, now seen corresponding path program 1 times [2022-11-18 19:59:21,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:21,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942436518] [2022-11-18 19:59:21,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:21,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:21,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:21,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:21,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:21,748 INFO L85 PathProgramCache]: Analyzing trace with hash 52534605, now seen corresponding path program 2 times [2022-11-18 19:59:21,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:21,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095714615] [2022-11-18 19:59:21,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:21,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:21,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:21,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:21,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:21,778 INFO L85 PathProgramCache]: Analyzing trace with hash -52011138, now seen corresponding path program 1 times [2022-11-18 19:59:21,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:21,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113896792] [2022-11-18 19:59:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:21,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:21,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:21,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:21,870 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:59:21,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:59:21,871 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:59:21,871 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:59:21,871 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:59:21,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:21,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:59:21,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:59:21,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration3_Loop [2022-11-18 19:59:21,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:59:21,873 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:59:21,874 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:21,975 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:59:21,976 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:59:21,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:21,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:21,979 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:21,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 19:59:21,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:59:21,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:22,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:22,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:22,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:22,025 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:22,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 19:59:22,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:59:22,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:22,313 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:59:22,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:22,322 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:59:22,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:59:22,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:59:22,323 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:59:22,323 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:59:22,323 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:22,323 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:59:22,323 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:59:22,324 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration3_Loop [2022-11-18 19:59:22,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:59:22,324 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:59:22,325 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:22,444 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:59:22,444 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:59:22,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:22,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:22,446 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:22,451 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 [2022-11-18 19:59:22,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 19:59:22,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:59:22,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:59:22,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:59:22,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:59:22,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:59:22,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:59:22,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:59:22,486 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:59:22,505 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:59:22,505 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 19:59:22,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:22,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:22,534 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:22,536 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:59:22,536 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:59:22,536 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:59:22,536 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2022-11-18 19:59:22,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-18 19:59:22,544 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:59:22,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 19:59:22,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:22,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:59:22,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:22,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:59:22,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:22,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:59:22,659 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 [2022-11-18 19:59:22,660 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) [2022-11-18 19:59:22,689 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. [2022-11-18 19:59:22,690 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 [2022-11-18 19:59:22,691 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) [2022-11-18 19:59:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-18 19:59:22,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 5 letters. [2022-11-18 19:59:22,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:22,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-18 19:59:22,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:22,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 10 letters. [2022-11-18 19:59:22,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:22,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2022-11-18 19:59:22,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:59:22,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 33 transitions. [2022-11-18 19:59:22,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-11-18 19:59:22,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-18 19:59:22,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2022-11-18 19:59:22,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:59:22,697 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-11-18 19:59:22,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2022-11-18 19:59:22,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-11-18 19:59:22,699 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) [2022-11-18 19:59:22,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-18 19:59:22,700 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-18 19:59:22,700 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-18 19:59:22,701 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:59:22,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 31 transitions. [2022-11-18 19:59:22,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:59:22,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:59:22,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:59:22,703 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 19:59:22,703 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 19:59:22,703 INFO L748 eck$LassoCheckResult]: Stem: 222#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~c~0 := 0;~v~0 := 0;~y~0 := 0;~z~0 := 0; 223#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 233#L12 assume ~v~0 >= 0;~c~0 := 0; 234#L13-3 assume !!(0 != ~v~0); 235#L15 assume !(0 == ~v~0); 237#L15-2 assume !(1 == ~v~0);~z~0 := ~bitwiseAnd(~v~0, 1);assume ~v~0 < 0 || (~z~0 <= ~v~0 && ~z~0 <= 1);assume ~z~0 >= 0;assume ~v~0 >= 0 || ~z~0 > 1 + ~v~0; 236#L15-4 ~c~0 := ~c~0 + ~z~0; 224#L13-2 ~v~0 := ~v~0 / 2; 225#L13-3 assume !!(0 != ~v~0); 228#L15 assume !(0 == ~v~0); 230#L15-2 assume !(1 == ~v~0);~z~0 := ~bitwiseAnd(~v~0, 1);assume ~v~0 < 0 || (~z~0 <= ~v~0 && ~z~0 <= 1);assume ~z~0 >= 0;assume ~v~0 >= 0 || ~z~0 > 1 + ~v~0; 218#L15-4 [2022-11-18 19:59:22,703 INFO L750 eck$LassoCheckResult]: Loop: 218#L15-4 ~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;~z~0 := ~v~0; 218#L15-4 [2022-11-18 19:59:22,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:22,704 INFO L85 PathProgramCache]: Analyzing trace with hash -52011136, now seen corresponding path program 1 times [2022-11-18 19:59:22,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:22,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508375583] [2022-11-18 19:59:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:22,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:22,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:22,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:22,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:22,730 INFO L85 PathProgramCache]: Analyzing trace with hash 52534605, now seen corresponding path program 3 times [2022-11-18 19:59:22,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:22,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797844648] [2022-11-18 19:59:22,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:22,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:22,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:22,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:22,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:22,743 INFO L85 PathProgramCache]: Analyzing trace with hash 454432046, now seen corresponding path program 2 times [2022-11-18 19:59:22,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:22,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096259737] [2022-11-18 19:59:22,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:22,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:22,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:22,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:22,808 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:59:22,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:59:22,808 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:59:22,808 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:59:22,809 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:59:22,809 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:22,809 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:59:22,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:59:22,809 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration4_Loop [2022-11-18 19:59:22,809 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:59:22,810 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:59:22,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:22,911 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:59:22,911 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:59:22,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:22,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:22,915 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:22,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:59:22,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:22,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 19:59:22,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:22,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:22,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:22,965 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:22,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:59:22,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:22,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 19:59:23,261 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:59:23,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:23,267 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:59:23,267 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:59:23,267 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:59:23,267 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:59:23,267 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:59:23,267 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:23,267 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:59:23,267 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:59:23,268 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration4_Loop [2022-11-18 19:59:23,268 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:59:23,268 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:59:23,269 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:23,359 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:59:23,359 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:59:23,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:23,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:23,361 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:23,381 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 [2022-11-18 19:59:23,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 19:59:23,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:59:23,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:59:23,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:59:23,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:59:23,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:59:23,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:59:23,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:59:23,409 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:59:23,414 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:59:23,414 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 19:59:23,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:23,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:23,421 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:23,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 19:59:23,426 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:59:23,426 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:59:23,426 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:59:23,426 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2022-11-18 19:59:23,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:23,436 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:59:23,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:23,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:59:23,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:23,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:59:23,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:23,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:59:23,511 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 [2022-11-18 19:59:23,512 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) [2022-11-18 19:59:23,537 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. [2022-11-18 19:59:23,537 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 [2022-11-18 19:59:23,538 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) [2022-11-18 19:59:23,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-18 19:59:23,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-18 19:59:23,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:23,541 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 19:59:23,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:23,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:59:23,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:23,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:59:23,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:23,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-18 19:59:23,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:23,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-18 19:59:23,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:59:23,677 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 [2022-11-18 19:59:23,678 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) [2022-11-18 19:59:23,707 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. [2022-11-18 19:59:23,708 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 [2022-11-18 19:59:23,709 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) [2022-11-18 19:59:23,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-18 19:59:23,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-18 19:59:23,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:23,710 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 19:59:23,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:23,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:59:23,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:23,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:59:23,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:23,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:59:23,816 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 [2022-11-18 19:59:23,817 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) [2022-11-18 19:59:23,855 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. [2022-11-18 19:59:23,856 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 [2022-11-18 19:59:23,857 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) [2022-11-18 19:59:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-18 19:59:23,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-18 19:59:23,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:23,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 5 letters. [2022-11-18 19:59:23,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:23,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 10 letters. [2022-11-18 19:59:23,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:23,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 52 transitions. [2022-11-18 19:59:23,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-18 19:59:23,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 33 states and 39 transitions. [2022-11-18 19:59:23,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-18 19:59:23,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-18 19:59:23,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 39 transitions. [2022-11-18 19:59:23,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:59:23,866 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-11-18 19:59:23,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 39 transitions. [2022-11-18 19:59:23,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 19. [2022-11-18 19:59:23,871 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) [2022-11-18 19:59:23,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-18 19:59:23,872 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-18 19:59:23,872 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-18 19:59:23,872 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 19:59:23,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2022-11-18 19:59:23,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-18 19:59:23,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:59:23,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:59:23,874 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 19:59:23,874 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 19:59:23,874 INFO L748 eck$LassoCheckResult]: Stem: 554#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~c~0 := 0;~v~0 := 0;~y~0 := 0;~z~0 := 0; 555#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 562#L12 assume ~v~0 >= 0;~c~0 := 0; 563#L13-3 assume !!(0 != ~v~0); 558#L15 [2022-11-18 19:59:23,875 INFO L750 eck$LassoCheckResult]: Loop: 558#L15 assume !(0 == ~v~0); 560#L15-2 assume !(1 == ~v~0);~z~0 := ~bitwiseAnd(~v~0, 1);assume ~v~0 < 0 || (~z~0 <= ~v~0 && ~z~0 <= 1);assume ~z~0 >= 0;assume ~v~0 >= 0 || ~z~0 > 1 + ~v~0; 550#L15-4 ~c~0 := ~c~0 + ~z~0; 552#L13-2 ~v~0 := ~v~0 / 2; 556#L13-3 assume !!(0 != ~v~0); 558#L15 [2022-11-18 19:59:23,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:23,875 INFO L85 PathProgramCache]: Analyzing trace with hash 925611, now seen corresponding path program 1 times [2022-11-18 19:59:23,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:23,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530468180] [2022-11-18 19:59:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:23,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:23,887 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:23,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:23,898 INFO L85 PathProgramCache]: Analyzing trace with hash 45962597, now seen corresponding path program 1 times [2022-11-18 19:59:23,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:23,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330233073] [2022-11-18 19:59:23,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:23,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:23,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:23,921 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:23,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:23,925 INFO L85 PathProgramCache]: Analyzing trace with hash -473796613, now seen corresponding path program 2 times [2022-11-18 19:59:23,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:23,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145794285] [2022-11-18 19:59:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:23,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:23,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:59:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:59:23,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:59:24,063 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:59:24,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:59:24,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:59:24,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:59:24,064 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:59:24,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:24,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:59:24,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:59:24,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration5_Loop [2022-11-18 19:59:24,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:59:24,065 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:59:24,068 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:24,296 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:59:24,296 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:59:24,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:24,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:24,297 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:24,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:59:24,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:24,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 19:59:24,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:24,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:24,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:24,350 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:24,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:59:24,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:24,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 19:59:24,576 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:59:24,576 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] [2022-11-18 19:59:24,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:24,621 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:59:24,621 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:59:24,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:59:24,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:59:24,622 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:59:24,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:24,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:59:24,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:59:24,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration5_Lasso [2022-11-18 19:59:24,623 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:59:24,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:59:24,624 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:24,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:24,657 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:24,660 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:24,663 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:24,893 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:59:24,893 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:59:24,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:24,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:24,894 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:24,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 19:59:24,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:59:24,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:24,948 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:59:24,948 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~y~0=0} Honda state: {~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:59:24,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:24,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:24,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:24,953 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:24,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 19:59:24,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:59:24,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:25,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:25,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:25,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:25,005 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:25,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:59:25,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:59:25,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 19:59:25,352 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:59:25,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:25,356 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:59:25,356 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:59:25,356 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:59:25,356 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:59:25,356 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:59:25,356 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:25,356 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:59:25,356 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:59:25,356 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration5_Lasso [2022-11-18 19:59:25,356 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:59:25,356 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:59:25,358 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:25,393 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:25,396 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:25,399 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:25,402 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:59:25,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:59:25,627 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:59:25,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:25,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:25,631 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:25,644 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 [2022-11-18 19:59:25,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 19:59:25,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:59:25,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:59:25,658 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-18 19:59:25,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:59:25,677 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-18 19:59:25,678 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-18 19:59:25,706 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:59:25,742 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2022-11-18 19:59:25,743 INFO L444 ModelExtractionUtils]: 11 out of 21 variables were initially zero. Simplification set additionally 6 variables to zero. [2022-11-18 19:59:25,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:59:25,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:59:25,744 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:59:25,758 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:59:25,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 19:59:25,789 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-11-18 19:59:25,790 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:59:25,790 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [1*~v~0 >= 0] [2022-11-18 19:59:25,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:25,802 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-11-18 19:59:25,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:25,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:59:25,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:25,863 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:59:25,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:59:25,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:59:25,972 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 [2022-11-18 19:59:25,972 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) [2022-11-18 19:59:26,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:59:26,041 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. [2022-11-18 19:59:26,042 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 [2022-11-18 19:59:26,044 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) [2022-11-18 19:59:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-18 19:59:26,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 4 letters. Loop has 5 letters. [2022-11-18 19:59:26,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:26,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 5 letters. [2022-11-18 19:59:26,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:26,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 4 letters. Loop has 10 letters. [2022-11-18 19:59:26,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:59:26,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 47 transitions. [2022-11-18 19:59:26,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 19:59:26,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2022-11-18 19:59:26,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 19:59:26,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 19:59:26,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 19:59:26,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:26,055 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:59:26,055 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:59:26,056 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:59:26,056 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 19:59:26,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:59:26,056 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 19:59:26,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 19:59:26,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:59:26 BoogieIcfgContainer [2022-11-18 19:59:26,064 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:59:26,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:59:26,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:59:26,065 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:59:26,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:59:20" (3/4) ... [2022-11-18 19:59:26,071 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:59:26,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:59:26,072 INFO L158 Benchmark]: Toolchain (without parser) took 6411.91ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 76.6MB in the beginning and 136.7MB in the end (delta: -60.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:59:26,078 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:59:26,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.76ms. Allocated memory is still 121.6MB. Free memory was 76.4MB in the beginning and 96.3MB in the end (delta: -20.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:59:26,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.01ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 94.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:59:26,083 INFO L158 Benchmark]: Boogie Preprocessor took 24.32ms. Allocated memory is still 121.6MB. Free memory was 94.7MB in the beginning and 93.9MB in the end (delta: 804.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:59:26,084 INFO L158 Benchmark]: RCFGBuilder took 310.64ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 84.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:59:26,085 INFO L158 Benchmark]: BuchiAutomizer took 5792.68ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 84.8MB in the beginning and 136.7MB in the end (delta: -52.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:59:26,087 INFO L158 Benchmark]: Witness Printer took 6.23ms. Allocated memory is still 165.7MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:59:26,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.76ms. Allocated memory is still 121.6MB. Free memory was 76.4MB in the beginning and 96.3MB in the end (delta: -20.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.01ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 94.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.32ms. Allocated memory is still 121.6MB. Free memory was 94.7MB in the beginning and 93.9MB in the end (delta: 804.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.64ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 84.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5792.68ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 84.8MB in the beginning and 136.7MB in the end (delta: -52.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.23ms. Allocated memory is still 165.7MB. Free memory is still 136.7MB. 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 5.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.4s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. 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: inital26 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div256 bol100 ite100 ukn100 eq131 hnf95 smp64 dnf244 smp75 tf103 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 162ms 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! [2022-11-18 19:59:26,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95182825-d0e8-4972-973b-ac3b75841a0c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE