./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/Binomial.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/Binomial.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be --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 c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: loopTF is false but loop analysis said: feasible --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:45:37,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:45:37,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:45:37,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:45:37,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:45:37,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:45:37,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:45:37,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:45:37,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:45:37,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:45:37,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:45:37,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:45:37,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:45:38,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:45:38,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:45:38,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:45:38,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:45:38,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:45:38,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:45:38,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:45:38,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:45:38,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:45:38,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:45:38,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:45:38,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:45:38,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:45:38,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:45:38,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:45:38,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:45:38,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:45:38,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:45:38,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:45:38,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:45:38,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:45:38,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:45:38,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:45:38,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:45:38,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:45:38,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:45:38,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:45:38,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:45:38,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:45:38,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:45:38,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:45:38,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:45:38,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:45:38,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:45:38,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:45:38,090 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:45:38,090 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:45:38,091 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:45:38,091 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:45:38,091 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:45:38,091 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:45:38,092 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:45:38,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:45:38,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:45:38,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:45:38,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:45:38,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:45:38,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:45:38,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:45:38,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:45:38,094 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:45:38,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:45:38,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:45:38,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:45:38,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:45:38,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:45:38,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:45:38,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:45:38,096 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:45:38,096 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_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2021-10-21 19:45:38,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:45:38,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:45:38,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:45:38,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:45:38,368 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:45:38,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-numeric/Binomial.c [2021-10-21 19:45:38,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/data/f4d12eada/48ff0f466f6b45d7b288d4aa17aae482/FLAG30e954acd [2021-10-21 19:45:38,863 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:45:38,864 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/sv-benchmarks/c/termination-numeric/Binomial.c [2021-10-21 19:45:38,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/data/f4d12eada/48ff0f466f6b45d7b288d4aa17aae482/FLAG30e954acd [2021-10-21 19:45:39,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/data/f4d12eada/48ff0f466f6b45d7b288d4aa17aae482 [2021-10-21 19:45:39,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:45:39,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:45:39,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:45:39,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:45:39,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:45:39,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee8cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39, skipping insertion in model container [2021-10-21 19:45:39,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:45:39,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:45:39,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:45:39,473 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:45:39,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:45:39,533 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:45:39,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39 WrapperNode [2021-10-21 19:45:39,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:45:39,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:45:39,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:45:39,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:45:39,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:45:39,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:45:39,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:45:39,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:45:39,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:45:39,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:45:39,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:45:39,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:45:39,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (1/1) ... [2021-10-21 19:45:39,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:39,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:39,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:39,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:45:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2021-10-21 19:45:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2021-10-21 19:45:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:45:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:45:39,982 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:45:39,982 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-21 19:45:39,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:39 BoogieIcfgContainer [2021-10-21 19:45:39,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:45:39,986 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:45:39,986 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:45:39,989 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:45:39,990 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:45:39,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:45:39" (1/3) ... [2021-10-21 19:45:39,992 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12f97f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:45:39, skipping insertion in model container [2021-10-21 19:45:39,992 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:45:39,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:39" (2/3) ... [2021-10-21 19:45:39,993 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12f97f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:45:39, skipping insertion in model container [2021-10-21 19:45:39,993 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:45:39,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:39" (3/3) ... [2021-10-21 19:45:39,995 INFO L389 chiAutomizerObserver]: Analyzing ICFG Binomial.c [2021-10-21 19:45:40,064 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:45:40,073 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:45:40,073 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:45:40,074 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:45:40,074 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:45:40,074 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:45:40,074 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:45:40,074 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:45:40,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-21 19:45:40,148 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-21 19:45:40,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:40,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:40,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:40,156 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:45:40,156 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:45:40,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-21 19:45:40,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-21 19:45:40,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:40,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:40,166 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:40,166 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:45:40,173 INFO L791 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 17#L35true assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 27#L38true assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 13#L41-3true [2021-10-21 19:45:40,173 INFO L793 eck$LassoCheckResult]: Loop: 13#L41-3true assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 22#L42-3true assume !(main_~k~0 <= main_~x~0); 14#L41-2true main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 13#L41-3true [2021-10-21 19:45:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:40,184 INFO L82 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 1 times [2021-10-21 19:45:40,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:40,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716225594] [2021-10-21 19:45:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:40,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:40,293 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:40,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:40,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:40,346 INFO L82 PathProgramCache]: Analyzing trace with hash 56819, now seen corresponding path program 1 times [2021-10-21 19:45:40,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:40,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081220544] [2021-10-21 19:45:40,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:40,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:40,364 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:40,384 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:40,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:40,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1158688391, now seen corresponding path program 1 times [2021-10-21 19:45:40,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:40,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702619990] [2021-10-21 19:45:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:40,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:40,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:40,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:40,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702619990] [2021-10-21 19:45:40,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702619990] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:40,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:40,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:45:40,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035495635] [2021-10-21 19:45:40,565 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:45:40,567 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:45:40,567 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:45:40,567 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:45:40,567 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:45:40,568 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:40,568 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:45:40,568 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:45:40,568 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration1_Loop [2021-10-21 19:45:40,568 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:45:40,569 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:45:40,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:40,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:40,646 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:45:40,647 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:45:40,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:40,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:40,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:40,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:40,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:40,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:45:40,681 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:40,681 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:40,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:40,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:40,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:40,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:40,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:40,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:40,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:45:40,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:40,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:40,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:40,786 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:40,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:45:40,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:40,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:45:41,002 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:45:41,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:41,005 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:45:41,005 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:45:41,005 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:45:41,005 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:45:41,005 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:45:41,006 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:41,006 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:45:41,006 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:45:41,006 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration1_Loop [2021-10-21 19:45:41,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:45:41,006 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:45:41,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:41,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:41,081 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:45:41,086 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:45:41,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:41,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:41,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:41,097 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 [2021-10-21 19:45:41,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:41,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:41,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:41,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:41,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:41,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:41,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:41,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:45:41,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:41,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:41,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:41,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:41,162 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:41,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:45:41,166 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 [2021-10-21 19:45:41,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:41,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:41,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:41,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:41,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:41,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:41,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:41,201 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:45:41,207 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-21 19:45:41,207 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-21 19:45:41,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:41,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:41,210 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:41,214 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:45:41,215 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:45:41,215 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:45:41,215 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-10-21 19:45:41,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:45:41,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:41,254 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:45:41,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:41,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:45:41,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:41,334 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:45:41,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:41,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:41,479 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 19:45:41,481 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:41,596 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 105 transitions. Complement of second has 11 states. [2021-10-21 19:45:41,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-21 19:45:41,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 53 transitions. [2021-10-21 19:45:41,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-21 19:45:41,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:45:41,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-21 19:45:41,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:45:41,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-21 19:45:41,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:45:41,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 105 transitions. [2021-10-21 19:45:41,622 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-21 19:45:41,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 32 states and 47 transitions. [2021-10-21 19:45:41,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-10-21 19:45:41,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-21 19:45:41,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 47 transitions. [2021-10-21 19:45:41,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:45:41,634 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2021-10-21 19:45:41,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 47 transitions. [2021-10-21 19:45:41,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2021-10-21 19:45:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-21 19:45:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2021-10-21 19:45:41,672 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 41 transitions. [2021-10-21 19:45:41,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:41,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:45:41,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:45:41,678 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:41,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:41,737 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2021-10-21 19:45:41,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:45:41,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2021-10-21 19:45:41,741 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-21 19:45:41,744 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2021-10-21 19:45:41,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-21 19:45:41,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-21 19:45:41,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2021-10-21 19:45:41,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:45:41,746 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-10-21 19:45:41,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2021-10-21 19:45:41,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-10-21 19:45:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-21 19:45:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2021-10-21 19:45:41,753 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-21 19:45:41,754 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-21 19:45:41,754 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:45:41,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2021-10-21 19:45:41,755 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-21 19:45:41,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:41,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:41,756 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:41,757 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:41,757 INFO L791 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 226#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 233#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 234#L41-3 [2021-10-21 19:45:41,758 INFO L793 eck$LassoCheckResult]: Loop: 234#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 229#L42-3 assume !!(main_~k~0 <= main_~x~0); 228#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 212#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 213#factENTRY ~n := #in~n; 227#L25 assume ~n <= 0;#res := 1; 224#factFINAL assume true; 214#factEXIT >#73#return; 216#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 213#factENTRY ~n := #in~n; 227#L25 assume ~n <= 0;#res := 1; 224#factFINAL assume true; 214#factEXIT >#75#return; 218#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 213#factENTRY ~n := #in~n; 227#L25 assume ~n <= 0;#res := 1; 224#factFINAL assume true; 214#factEXIT >#77#return; 222#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 230#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 231#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 232#L42-3 assume !(main_~k~0 <= main_~x~0); 236#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 234#L41-3 [2021-10-21 19:45:41,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:41,759 INFO L82 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 2 times [2021-10-21 19:45:41,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:41,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270792065] [2021-10-21 19:45:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:41,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:41,772 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:41,788 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:41,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:41,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1052427359, now seen corresponding path program 1 times [2021-10-21 19:45:41,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:41,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999404928] [2021-10-21 19:45:41,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:41,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:41,805 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:41,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1667807836] [2021-10-21 19:45:41,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:41,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:41,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:41,810 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:41,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:45:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:41,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:45:41,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:42,018 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 19:45:42,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:42,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999404928] [2021-10-21 19:45:42,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:45:42,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667807836] [2021-10-21 19:45:42,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667807836] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:42,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:42,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:45:42,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421286430] [2021-10-21 19:45:42,021 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:45:42,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:42,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:45:42,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:45:42,025 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. cyclomatic complexity: 11 Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:45:42,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:42,110 INFO L93 Difference]: Finished difference Result 33 states and 49 transitions. [2021-10-21 19:45:42,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:45:42,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2021-10-21 19:45:42,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2021-10-21 19:45:42,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 49 transitions. [2021-10-21 19:45:42,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-21 19:45:42,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-21 19:45:42,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 49 transitions. [2021-10-21 19:45:42,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:45:42,119 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 49 transitions. [2021-10-21 19:45:42,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 49 transitions. [2021-10-21 19:45:42,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2021-10-21 19:45:42,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2021-10-21 19:45:42,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 41 transitions. [2021-10-21 19:45:42,130 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 41 transitions. [2021-10-21 19:45:42,130 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 41 transitions. [2021-10-21 19:45:42,130 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:45:42,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 41 transitions. [2021-10-21 19:45:42,132 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-21 19:45:42,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:42,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:42,135 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:42,135 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:42,135 INFO L791 eck$LassoCheckResult]: Stem: 358#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 359#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 368#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 369#L41-3 [2021-10-21 19:45:42,136 INFO L793 eck$LassoCheckResult]: Loop: 369#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 363#L42-3 assume !!(main_~k~0 <= main_~x~0); 361#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 354#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 347#factENTRY ~n := #in~n; 360#L25 assume !(~n <= 0); 349#L26 call #t~ret0 := fact(~n - 1);< 347#factENTRY ~n := #in~n; 360#L25 assume ~n <= 0;#res := 1; 357#factFINAL assume true; 348#factEXIT >#65#return; 355#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 362#factFINAL assume true; 372#factEXIT >#67#return; 350#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 347#factENTRY ~n := #in~n; 360#L25 assume !(~n <= 0); 349#L26 call #t~ret0 := fact(~n - 1);< 347#factENTRY ~n := #in~n; 360#L25 assume ~n <= 0;#res := 1; 357#factFINAL assume true; 348#factEXIT >#65#return; 355#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 362#factFINAL assume true; 372#factEXIT >#69#return; 352#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 347#factENTRY ~n := #in~n; 360#L25 assume !(~n <= 0); 349#L26 call #t~ret0 := fact(~n - 1);< 347#factENTRY ~n := #in~n; 360#L25 assume ~n <= 0;#res := 1; 357#factFINAL assume true; 348#factEXIT >#65#return; 355#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 362#factFINAL assume true; 372#factEXIT >#71#return; 356#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 370#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 366#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 367#L42-3 assume !(main_~k~0 <= main_~x~0); 371#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 369#L41-3 [2021-10-21 19:45:42,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:42,136 INFO L82 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 3 times [2021-10-21 19:45:42,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:42,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630801619] [2021-10-21 19:45:42,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:42,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:42,147 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:42,157 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:42,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:42,157 INFO L82 PathProgramCache]: Analyzing trace with hash 595054747, now seen corresponding path program 1 times [2021-10-21 19:45:42,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:42,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70145729] [2021-10-21 19:45:42,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:42,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:42,189 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:42,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440097860] [2021-10-21 19:45:42,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:42,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:42,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:42,191 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:42,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:45:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:42,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:45:42,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-21 19:45:42,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:42,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70145729] [2021-10-21 19:45:42,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:45:42,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440097860] [2021-10-21 19:45:42,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440097860] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:45:42,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:45:42,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 19:45:42,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768878306] [2021-10-21 19:45:42,431 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:45:42,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:45:42,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:45:42,432 INFO L87 Difference]: Start difference. First operand 27 states and 41 transitions. cyclomatic complexity: 16 Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 19:45:42,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:42,630 INFO L93 Difference]: Finished difference Result 45 states and 72 transitions. [2021-10-21 19:45:42,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:45:42,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 72 transitions. [2021-10-21 19:45:42,636 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2021-10-21 19:45:42,640 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 72 transitions. [2021-10-21 19:45:42,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2021-10-21 19:45:42,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2021-10-21 19:45:42,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 72 transitions. [2021-10-21 19:45:42,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:45:42,645 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 72 transitions. [2021-10-21 19:45:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 72 transitions. [2021-10-21 19:45:42,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2021-10-21 19:45:42,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (19), 9 states have call predecessors, (19), 11 states have call successors, (19) [2021-10-21 19:45:42,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2021-10-21 19:45:42,650 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 53 transitions. [2021-10-21 19:45:42,650 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 53 transitions. [2021-10-21 19:45:42,650 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:45:42,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 53 transitions. [2021-10-21 19:45:42,651 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 24 [2021-10-21 19:45:42,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:42,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:42,654 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:42,654 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:42,654 INFO L791 eck$LassoCheckResult]: Stem: 567#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 568#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 577#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 578#L41-3 [2021-10-21 19:45:42,654 INFO L793 eck$LassoCheckResult]: Loop: 578#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 572#L42-3 assume !!(main_~k~0 <= main_~x~0); 570#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 563#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 552#factENTRY ~n := #in~n; 569#L25 assume !(~n <= 0); 554#L26 call #t~ret0 := fact(~n - 1);< 552#factENTRY ~n := #in~n; 569#L25 assume ~n <= 0;#res := 1; 566#factFINAL assume true; 553#factEXIT >#65#return; 564#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 571#factFINAL assume true; 581#factEXIT >#67#return; 555#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 552#factENTRY ~n := #in~n; 569#L25 assume ~n <= 0;#res := 1; 566#factFINAL assume true; 553#factEXIT >#69#return; 557#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 552#factENTRY ~n := #in~n; 569#L25 assume !(~n <= 0); 554#L26 call #t~ret0 := fact(~n - 1);< 552#factENTRY ~n := #in~n; 569#L25 assume ~n <= 0;#res := 1; 566#factFINAL assume true; 553#factEXIT >#65#return; 564#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 571#factFINAL assume true; 581#factEXIT >#71#return; 565#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 579#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 575#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 576#L42-3 assume !(main_~k~0 <= main_~x~0); 580#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 578#L41-3 [2021-10-21 19:45:42,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 4 times [2021-10-21 19:45:42,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:42,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867529880] [2021-10-21 19:45:42,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:42,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:42,662 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:42,673 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:42,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:42,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1540584337, now seen corresponding path program 2 times [2021-10-21 19:45:42,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:42,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596253576] [2021-10-21 19:45:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:42,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:42,692 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:42,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675686011] [2021-10-21 19:45:42,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:45:42,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:42,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:42,695 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:42,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:45:42,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:45:42,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:45:42,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:45:42,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-21 19:45:43,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:43,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596253576] [2021-10-21 19:45:43,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:45:43,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675686011] [2021-10-21 19:45:43,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675686011] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:45:43,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:45:43,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-21 19:45:43,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517863186] [2021-10-21 19:45:43,031 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:45:43,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:43,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:45:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:45:43,042 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. cyclomatic complexity: 23 Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-21 19:45:43,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:43,385 INFO L93 Difference]: Finished difference Result 58 states and 97 transitions. [2021-10-21 19:45:43,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:45:43,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 97 transitions. [2021-10-21 19:45:43,389 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 50 [2021-10-21 19:45:43,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 97 transitions. [2021-10-21 19:45:43,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2021-10-21 19:45:43,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2021-10-21 19:45:43,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 97 transitions. [2021-10-21 19:45:43,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:45:43,400 INFO L681 BuchiCegarLoop]: Abstraction has 58 states and 97 transitions. [2021-10-21 19:45:43,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 97 transitions. [2021-10-21 19:45:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 38. [2021-10-21 19:45:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 13 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (22), 12 states have call predecessors, (22), 13 states have call successors, (22) [2021-10-21 19:45:43,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2021-10-21 19:45:43,418 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 62 transitions. [2021-10-21 19:45:43,418 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 62 transitions. [2021-10-21 19:45:43,418 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:45:43,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 62 transitions. [2021-10-21 19:45:43,421 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2021-10-21 19:45:43,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:43,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:43,424 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:43,424 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:43,424 INFO L791 eck$LassoCheckResult]: Stem: 779#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 780#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 789#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 790#L41-3 [2021-10-21 19:45:43,424 INFO L793 eck$LassoCheckResult]: Loop: 790#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 792#L42-3 assume !!(main_~k~0 <= main_~x~0); 797#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 760#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 761#factENTRY ~n := #in~n; 783#L25 assume !(~n <= 0); 767#L26 call #t~ret0 := fact(~n - 1);< 761#factENTRY ~n := #in~n; 783#L25 assume ~n <= 0;#res := 1; 781#factFINAL assume true; 782#factEXIT >#65#return; 775#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 785#factFINAL assume true; 762#factEXIT >#73#return; 772#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 761#factENTRY ~n := #in~n; 783#L25 assume ~n <= 0;#res := 1; 781#factFINAL assume true; 782#factEXIT >#75#return; 771#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 761#factENTRY ~n := #in~n; 783#L25 assume !(~n <= 0); 767#L26 call #t~ret0 := fact(~n - 1);< 761#factENTRY ~n := #in~n; 783#L25 assume ~n <= 0;#res := 1; 781#factFINAL assume true; 782#factEXIT >#65#return; 775#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 785#factFINAL assume true; 762#factEXIT >#77#return; 777#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 787#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 791#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 795#L42-3 assume !(main_~k~0 <= main_~x~0); 794#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 790#L41-3 [2021-10-21 19:45:43,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:43,425 INFO L82 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 5 times [2021-10-21 19:45:43,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:43,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985524564] [2021-10-21 19:45:43,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:43,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:43,432 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:43,437 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:43,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:43,437 INFO L82 PathProgramCache]: Analyzing trace with hash 646106509, now seen corresponding path program 1 times [2021-10-21 19:45:43,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:43,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274829109] [2021-10-21 19:45:43,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:43,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:43,456 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:43,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454259021] [2021-10-21 19:45:43,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:43,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:43,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:43,465 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:43,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 19:45:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:43,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:45:43,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-21 19:45:43,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:43,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274829109] [2021-10-21 19:45:43,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:45:43,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454259021] [2021-10-21 19:45:43,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454259021] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:45:43,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:45:43,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 19:45:43,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074948] [2021-10-21 19:45:43,674 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:45:43,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:43,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:45:43,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:45:43,678 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. cyclomatic complexity: 26 Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-21 19:45:43,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:43,844 INFO L93 Difference]: Finished difference Result 52 states and 81 transitions. [2021-10-21 19:45:43,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:45:43,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 81 transitions. [2021-10-21 19:45:43,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2021-10-21 19:45:43,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 81 transitions. [2021-10-21 19:45:43,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2021-10-21 19:45:43,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2021-10-21 19:45:43,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 81 transitions. [2021-10-21 19:45:43,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:45:43,848 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 81 transitions. [2021-10-21 19:45:43,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 81 transitions. [2021-10-21 19:45:43,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 38. [2021-10-21 19:45:43,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 13 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (21), 12 states have call predecessors, (21), 13 states have call successors, (21) [2021-10-21 19:45:43,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2021-10-21 19:45:43,854 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2021-10-21 19:45:43,854 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2021-10-21 19:45:43,854 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:45:43,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 61 transitions. [2021-10-21 19:45:43,854 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2021-10-21 19:45:43,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:43,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:43,855 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:43,856 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:43,856 INFO L791 eck$LassoCheckResult]: Stem: 985#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 986#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 995#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 996#L41-3 [2021-10-21 19:45:43,856 INFO L793 eck$LassoCheckResult]: Loop: 996#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 998#L42-3 assume !!(main_~k~0 <= main_~x~0); 1003#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 966#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 967#factENTRY ~n := #in~n; 989#L25 assume ~n <= 0;#res := 1; 987#factFINAL assume true; 988#factEXIT >#73#return; 979#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 967#factENTRY ~n := #in~n; 989#L25 assume ~n <= 0;#res := 1; 987#factFINAL assume true; 988#factEXIT >#75#return; 969#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 967#factENTRY ~n := #in~n; 989#L25 assume !(~n <= 0); 978#L26 call #t~ret0 := fact(~n - 1);< 967#factENTRY ~n := #in~n; 989#L25 assume ~n <= 0;#res := 1; 987#factFINAL assume true; 988#factEXIT >#65#return; 984#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 991#factFINAL assume true; 968#factEXIT >#77#return; 981#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 993#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 997#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1001#L42-3 assume !(main_~k~0 <= main_~x~0); 1000#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 996#L41-3 [2021-10-21 19:45:43,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:43,856 INFO L82 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 6 times [2021-10-21 19:45:43,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:43,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990153340] [2021-10-21 19:45:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:43,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:43,861 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:43,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:43,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:43,864 INFO L82 PathProgramCache]: Analyzing trace with hash 440366743, now seen corresponding path program 2 times [2021-10-21 19:45:43,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:43,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923376923] [2021-10-21 19:45:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:43,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:43,872 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:43,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369515194] [2021-10-21 19:45:43,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:45:43,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:43,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:43,874 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:43,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 19:45:43,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:45:43,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-21 19:45:43,972 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:43,992 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:43,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1834453461, now seen corresponding path program 1 times [2021-10-21 19:45:43,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:43,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980334230] [2021-10-21 19:45:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:43,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-21 19:45:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-21 19:45:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:44,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-21 19:45:44,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:44,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980334230] [2021-10-21 19:45:44,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-10-21 19:45:44,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876219182] [2021-10-21 19:45:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:44,030 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:44,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:44,041 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:44,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 19:45:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:44,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:45:44,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:44,336 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-21 19:45:44,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876219182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:44,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:44,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:45:44,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152648719] [2021-10-21 19:45:44,764 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:45:44,764 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:45:44,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:45:44,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:45:44,764 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:45:44,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:44,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:45:44,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:45:44,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration6_Loop [2021-10-21 19:45:44,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:45:44,765 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:45:44,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:44,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:44,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:44,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:44,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:44,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:44,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:44,982 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:45:44,982 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:45:44,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:44,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:44,985 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:44,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:44,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:45,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:45:45,018 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:45,019 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8=0} Honda state: {ULTIMATE.start_main_#t~post8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:45,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:45,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:45,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:45,055 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:45,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:45,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:45,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:45:45,086 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:45,087 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:45,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:45,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:45,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:45,123 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:45,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:45,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:45,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:45:45,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:45,160 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:45,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:45,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:45,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:45,198 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:45,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:45:45,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:45,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:45,226 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:45,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret10=0} Honda state: {ULTIMATE.start_main_#t~ret10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:45,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:45,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:45,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:45,266 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:45,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:45,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:45,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:45:45,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:45,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:45,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:45,332 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:45,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:45:45,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:45,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:45:45,385 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:45:45,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:45,408 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:45:45,408 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:45:45,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:45:45,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:45:45,409 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:45:45,409 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:45,409 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:45:45,409 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:45:45,409 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration6_Loop [2021-10-21 19:45:45,409 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:45:45,409 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:45:45,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:45,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:45,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:45,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:45,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:45,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:45,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:45,801 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:45:45,802 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:45:45,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:45,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:45,806 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:45,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:45:45,814 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 [2021-10-21 19:45:45,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:45,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:45,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:45,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:45,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:45,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:45,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:45,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:45,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:45,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:45,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:45,890 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:45,897 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 [2021-10-21 19:45:45,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:45,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:45,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:45,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:45,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:45,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:45,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:45,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:45:45,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:45,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:45,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:45,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:45,966 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:45,973 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 [2021-10-21 19:45:45,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:45,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:45,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:45,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:45,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:45,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:45,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:45,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:45:46,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,041 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:45:46,050 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 [2021-10-21 19:45:46,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:46,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:46,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,095 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:45:46,096 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 [2021-10-21 19:45:46,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:46,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:46,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,178 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,180 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 [2021-10-21 19:45:46,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:46,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:46,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:45:46,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,249 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,252 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 [2021-10-21 19:45:46,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:45:46,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:46,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:46,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,294 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 19:45:46,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,295 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:45:46,297 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 [2021-10-21 19:45:46,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,306 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:46,306 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:46,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,332 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,334 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 [2021-10-21 19:45:46,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:45:46,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,342 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:46,343 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:46,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,371 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:45:46,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:45:46,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,382 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:46,383 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:46,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,409 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:45:46,411 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 [2021-10-21 19:45:46,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,419 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:46,421 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:46,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,433 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,453 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:45:46,457 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 [2021-10-21 19:45:46,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,467 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:46,477 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:46,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-21 19:45:46,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,534 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,554 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 [2021-10-21 19:45:46,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,565 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:46,566 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:46,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:45:46,581 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,615 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:45:46,617 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 [2021-10-21 19:45:46,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,625 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:46,626 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:46,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,650 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 19:45:46,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,651 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:45:46,653 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 [2021-10-21 19:45:46,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,661 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:46,662 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:46,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-21 19:45:46,683 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,683 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 19:45:46,685 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 [2021-10-21 19:45:46,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,692 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:46,696 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:46,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,698 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,717 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 19:45:46,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:45:46,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,727 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:46,728 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:46,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-21 19:45:46,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,750 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 19:45:46,751 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 [2021-10-21 19:45:46,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,759 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:46,760 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:46,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,808 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,810 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 [2021-10-21 19:45:46,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 19:45:46,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,820 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:46,826 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:46,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,842 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,865 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 19:45:46,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:45:46,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,875 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:46,876 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:46,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,882 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,903 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 19:45:46,905 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 [2021-10-21 19:45:46,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,913 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:46,914 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:46,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-21 19:45:46,933 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 19:45:46,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:46,934 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:46,936 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 [2021-10-21 19:45:46,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 19:45:46,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:46,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:46,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:46,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:46,944 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:46,945 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:46,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:46,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:46,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:46,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:46,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,014 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,022 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 [2021-10-21 19:45:47,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:47,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,031 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:47,032 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:47,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 19:45:47,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-21 19:45:47,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,067 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 19:45:47,068 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 [2021-10-21 19:45:47,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:47,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,076 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:47,077 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:47,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-21 19:45:47,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,101 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 19:45:47,102 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 [2021-10-21 19:45:47,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:47,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,110 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:47,111 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:47,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,112 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-21 19:45:47,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,132 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 19:45:47,133 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 [2021-10-21 19:45:47,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:47,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,142 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:47,149 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:47,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,192 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 19:45:47,193 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 [2021-10-21 19:45:47,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:47,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,201 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:47,202 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:47,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,224 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 19:45:47,226 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 [2021-10-21 19:45:47,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:47,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,237 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:47,238 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:47,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,276 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 19:45:47,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,277 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 19:45:47,278 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 [2021-10-21 19:45:47,285 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,285 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:47,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,286 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:47,287 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:47,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-21 19:45:47,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,308 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 19:45:47,313 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 [2021-10-21 19:45:47,321 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,321 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:47,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,321 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:47,323 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:47,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,366 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-21 19:45:47,368 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 [2021-10-21 19:45:47,375 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,375 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:47,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,375 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:47,376 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:47,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,407 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 19:45:47,410 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 [2021-10-21 19:45:47,417 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,417 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:47,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,417 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:47,419 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:47,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-21 19:45:47,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,464 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,465 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 [2021-10-21 19:45:47,475 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,475 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:47,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,476 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:47,481 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:47,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 19:45:47,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,547 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,550 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 [2021-10-21 19:45:47,559 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,560 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:47,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,560 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:47,561 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:47,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 19:45:47,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,614 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,616 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 [2021-10-21 19:45:47,626 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,627 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:47,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,627 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:45:47,628 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:45:47,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-21 19:45:47,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,674 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 19:45:47,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,675 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,677 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 [2021-10-21 19:45:47,687 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,687 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:45:47,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,687 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:47,688 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:47,689 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 19:45:47,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,739 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,742 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 [2021-10-21 19:45:47,751 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,752 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:45:47,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,752 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:47,753 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:47,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 19:45:47,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,802 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,804 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 [2021-10-21 19:45:47,813 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,813 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:45:47,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,814 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:47,815 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:47,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 19:45:47,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,873 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,875 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 [2021-10-21 19:45:47,884 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,884 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:45:47,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,884 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:47,886 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:47,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-21 19:45:47,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:47,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:47,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:47,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:47,939 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:47,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:45:47,951 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:47,951 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:45:47,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:47,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:47,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:47,951 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:47,959 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:47,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:47,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-21 19:45:47,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-21 19:45:48,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,018 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-21 19:45:48,019 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 [2021-10-21 19:45:48,026 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,026 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:45:48,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,027 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:48,028 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:48,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,076 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,082 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 [2021-10-21 19:45:48,091 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,092 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:45:48,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,092 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:48,093 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:48,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-21 19:45:48,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,138 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 19:45:48,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,142 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,144 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 [2021-10-21 19:45:48,153 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,153 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:48,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,154 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:48,156 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:48,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-21 19:45:48,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,206 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,208 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 [2021-10-21 19:45:48,217 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,218 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:48,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,218 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:48,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-21 19:45:48,220 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:48,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,269 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,271 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 [2021-10-21 19:45:48,281 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,281 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:48,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,282 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:48,283 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:48,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-21 19:45:48,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,335 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,338 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 [2021-10-21 19:45:48,347 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,348 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:48,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,348 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:48,350 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:48,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-21 19:45:48,373 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,406 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,410 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 [2021-10-21 19:45:48,421 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,421 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:48,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,422 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:48,432 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:48,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-21 19:45:48,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,504 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,510 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 [2021-10-21 19:45:48,520 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,520 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:48,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,520 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:48,522 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:48,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-21 19:45:48,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,575 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,577 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 [2021-10-21 19:45:48,586 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,587 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:48,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,587 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:45:48,589 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:45:48,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-21 19:45:48,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-21 19:45:48,625 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 19:45:48,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,626 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,628 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 [2021-10-21 19:45:48,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-21 19:45:48,637 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,637 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:48,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,638 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:48,638 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:48,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-21 19:45:48,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,660 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-21 19:45:48,661 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 [2021-10-21 19:45:48,669 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,669 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:48,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,669 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:48,670 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:48,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-21 19:45:48,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,706 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-21 19:45:48,707 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 [2021-10-21 19:45:48,715 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,715 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:48,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,715 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:48,716 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:48,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,762 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-21 19:45:48,763 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 [2021-10-21 19:45:48,771 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,771 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:48,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,771 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:48,772 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:48,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,774 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,793 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-21 19:45:48,795 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 [2021-10-21 19:45:48,803 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,803 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:48,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,804 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:48,809 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:48,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:48,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,862 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-21 19:45:48,885 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 [2021-10-21 19:45:48,893 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,893 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:48,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,894 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:48,894 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:48,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-21 19:45:48,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,921 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-21 19:45:48,922 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 [2021-10-21 19:45:48,931 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,931 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:45:48,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,931 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:45:48,932 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:45:48,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:48,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:48,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-10-21 19:45:48,982 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 19:45:48,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:48,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:48,983 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:48,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:45:48,997 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:48,997 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:48,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:48,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:48,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:48,998 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:45:49,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:45:49,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:49,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-21 19:45:49,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:49,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-21 19:45:49,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:49,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:49,055 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:49,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-21 19:45:49,057 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 [2021-10-21 19:45:49,064 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:49,064 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:49,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:49,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:49,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:49,065 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:45:49,067 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:45:49,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:49,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:49,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-10-21 19:45:49,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:49,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:49,118 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:49,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-21 19:45:49,120 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 [2021-10-21 19:45:49,127 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:49,128 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:49,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:49,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:49,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:49,128 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:45:49,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:45:49,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:49,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:49,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-21 19:45:49,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:49,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:49,183 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:49,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-21 19:45:49,184 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 [2021-10-21 19:45:49,191 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:49,191 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:49,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:49,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:49,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:49,192 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:45:49,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:45:49,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:49,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:49,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:49,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:49,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:49,228 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:49,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-21 19:45:49,229 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 [2021-10-21 19:45:49,237 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:49,238 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:49,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:49,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:49,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:49,238 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:45:49,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:45:49,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:49,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:49,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:49,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:49,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:49,311 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:49,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-21 19:45:49,314 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 [2021-10-21 19:45:49,321 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:49,321 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:49,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:49,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:49,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:49,321 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:45:49,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:45:49,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:49,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:49,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:49,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:49,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:49,391 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:49,394 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 [2021-10-21 19:45:49,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-21 19:45:49,402 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:45:49,402 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:45:49,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:49,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:49,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:49,403 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:45:49,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:45:49,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:49,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:49,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-21 19:45:49,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:49,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:45:49,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:45:49,433 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. cyclomatic complexity: 25 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 19:45:49,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:49,482 INFO L93 Difference]: Finished difference Result 40 states and 62 transitions. [2021-10-21 19:45:49,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:45:49,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 62 transitions. [2021-10-21 19:45:49,484 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2021-10-21 19:45:49,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 40 states and 62 transitions. [2021-10-21 19:45:49,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-21 19:45:49,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-21 19:45:49,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 62 transitions. [2021-10-21 19:45:49,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:45:49,486 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 62 transitions. [2021-10-21 19:45:49,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 62 transitions. [2021-10-21 19:45:49,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2021-10-21 19:45:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (19), 11 states have call predecessors, (19), 11 states have call successors, (19) [2021-10-21 19:45:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2021-10-21 19:45:49,491 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-10-21 19:45:49,491 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-10-21 19:45:49,491 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:45:49,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 56 transitions. [2021-10-21 19:45:49,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2021-10-21 19:45:49,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:49,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:49,493 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:49,493 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:49,493 INFO L791 eck$LassoCheckResult]: Stem: 1181#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 1182#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 1193#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 1194#L41-3 [2021-10-21 19:45:49,494 INFO L793 eck$LassoCheckResult]: Loop: 1194#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 1187#L42-3 assume !!(main_~k~0 <= main_~x~0); 1185#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1175#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 1166#factENTRY ~n := #in~n; 1184#L25 assume ~n <= 0;#res := 1; 1183#factFINAL assume true; 1168#factEXIT >#67#return; 1169#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 1166#factENTRY ~n := #in~n; 1184#L25 assume ~n <= 0;#res := 1; 1183#factFINAL assume true; 1168#factEXIT >#69#return; 1167#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 1166#factENTRY ~n := #in~n; 1184#L25 assume ~n <= 0;#res := 1; 1183#factFINAL assume true; 1168#factEXIT >#71#return; 1178#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 1195#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 1192#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1198#L42-3 assume !(main_~k~0 <= main_~x~0); 1196#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 1194#L41-3 [2021-10-21 19:45:49,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:49,494 INFO L82 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 7 times [2021-10-21 19:45:49,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:49,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158937195] [2021-10-21 19:45:49,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:49,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:49,500 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:49,503 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:49,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:49,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1214025381, now seen corresponding path program 1 times [2021-10-21 19:45:49,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:49,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474424617] [2021-10-21 19:45:49,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:49,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:49,511 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:49,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931415807] [2021-10-21 19:45:49,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:49,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:49,513 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:49,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-21 19:45:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:49,614 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:49,629 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:49,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:49,629 INFO L82 PathProgramCache]: Analyzing trace with hash -2062430919, now seen corresponding path program 1 times [2021-10-21 19:45:49,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:49,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796602955] [2021-10-21 19:45:49,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:49,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:49,637 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:49,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [285920018] [2021-10-21 19:45:49,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:49,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:49,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:49,646 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:49,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-21 19:45:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:49,770 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:49,793 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:50,101 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:45:50,101 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:45:50,101 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:45:50,101 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:45:50,101 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:45:50,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:50,102 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:45:50,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:45:50,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration7_Loop [2021-10-21 19:45:50,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:45:50,102 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:45:50,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:50,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:50,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:50,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:50,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:50,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:50,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:50,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:50,236 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:45:50,236 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:45:50,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:50,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:50,241 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:50,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:50,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:50,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-21 19:45:50,253 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:50,253 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:50,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-10-21 19:45:50,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:50,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:50,273 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:50,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-21 19:45:50,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:50,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:50,283 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:50,283 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:50,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:50,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:50,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:50,303 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:50,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-21 19:45:50,305 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:50,305 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:50,313 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:50,313 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#res=1} Honda state: {ULTIMATE.start_binomialCoefficient_#res=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:50,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:50,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:50,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:50,332 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:50,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-21 19:45:50,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:50,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:50,341 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:50,341 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:50,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:50,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:50,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:50,361 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:50,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-21 19:45:50,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:50,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:50,370 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:50,370 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:50,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:50,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:50,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:50,389 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:50,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-21 19:45:50,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:50,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:50,414 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:50,414 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret9=0} Honda state: {ULTIMATE.start_main_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:50,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:50,454 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:50,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:50,455 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:50,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:50,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:50,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-21 19:45:50,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:50,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:50,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:50,517 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:50,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-21 19:45:50,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:45:50,518 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:51,791 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:45:51,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:51,795 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:45:51,795 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:45:51,795 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:45:51,795 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:45:51,795 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:45:51,795 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:51,795 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:45:51,795 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:45:51,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration7_Loop [2021-10-21 19:45:51,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:45:51,796 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:45:51,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:51,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:51,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:51,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:51,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:51,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:51,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:51,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:51,937 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:45:51,937 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:45:51,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:51,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:51,938 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:51,946 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 [2021-10-21 19:45:51,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:51,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:51,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:51,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:51,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:51,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:51,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:51,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-21 19:45:51,973 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:45:51,986 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:45:51,986 INFO L444 ModelExtractionUtils]: 6 out of 9 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:45:51,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:51,996 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:52,004 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:45:52,004 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:45:52,005 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:45:52,005 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~n~0 + 1 Supporting invariants [] [2021-10-21 19:45:52,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-21 19:45:52,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:52,044 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:45:52,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:52,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:45:52,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:52,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:52,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:45:52,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 19:45:52,415 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-21 19:45:52,416 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 56 transitions. cyclomatic complexity: 22 Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:45:52,674 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 56 transitions. cyclomatic complexity: 22. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Result 132 states and 203 transitions. Complement of second has 26 states. [2021-10-21 19:45:52,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-10-21 19:45:52,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:45:52,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions. [2021-10-21 19:45:52,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 23 letters. [2021-10-21 19:45:52,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:45:52,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 26 letters. Loop has 23 letters. [2021-10-21 19:45:52,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:45:52,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 46 letters. [2021-10-21 19:45:52,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:45:52,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 203 transitions. [2021-10-21 19:45:52,681 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2021-10-21 19:45:52,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 131 states and 202 transitions. [2021-10-21 19:45:52,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-10-21 19:45:52,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2021-10-21 19:45:52,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 202 transitions. [2021-10-21 19:45:52,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:45:52,686 INFO L681 BuchiCegarLoop]: Abstraction has 131 states and 202 transitions. [2021-10-21 19:45:52,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 202 transitions. [2021-10-21 19:45:52,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 126. [2021-10-21 19:45:52,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 78 states have (on average 1.1923076923076923) internal successors, (93), 81 states have internal predecessors, (93), 38 states have call successors, (38), 6 states have call predecessors, (38), 10 states have return successors, (62), 38 states have call predecessors, (62), 38 states have call successors, (62) [2021-10-21 19:45:52,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 193 transitions. [2021-10-21 19:45:52,698 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 193 transitions. [2021-10-21 19:45:52,698 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 193 transitions. [2021-10-21 19:45:52,698 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 19:45:52,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 193 transitions. [2021-10-21 19:45:52,699 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2021-10-21 19:45:52,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:52,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:52,701 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:45:52,701 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [11, 11, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2021-10-21 19:45:52,702 INFO L791 eck$LassoCheckResult]: Stem: 1485#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 1486#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 1512#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 1513#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 1497#L42-3 [2021-10-21 19:45:52,702 INFO L793 eck$LassoCheckResult]: Loop: 1497#L42-3 assume !!(main_~k~0 <= main_~x~0); 1495#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1487#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#67#return; 1543#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume ~n <= 0;#res := 1; 1550#factFINAL assume true; 1548#factEXIT >#69#return; 1482#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#71#return; 1546#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 1555#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 1554#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1553#L42-3 assume !!(main_~k~0 <= main_~x~0); 1529#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1544#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#67#return; 1545#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#69#return; 1542#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#71#return; 1533#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 1531#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 1530#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1528#L42-3 assume !(main_~k~0 <= main_~x~0); 1526#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 1517#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 1497#L42-3 [2021-10-21 19:45:52,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:52,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 1 times [2021-10-21 19:45:52,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:52,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981916607] [2021-10-21 19:45:52,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:52,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:52,708 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:52,712 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:52,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:52,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1979006875, now seen corresponding path program 3 times [2021-10-21 19:45:52,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:52,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659278727] [2021-10-21 19:45:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:52,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:52,720 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:52,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326351483] [2021-10-21 19:45:52,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:45:52,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:52,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:52,721 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:52,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-10-21 19:45:52,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-21 19:45:52,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:45:52,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:45:52,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-10-21 19:45:53,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:53,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659278727] [2021-10-21 19:45:53,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:45:53,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326351483] [2021-10-21 19:45:53,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326351483] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:53,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:53,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:45:53,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923919299] [2021-10-21 19:45:53,114 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:45:53,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:53,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:45:53,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:45:53,116 INFO L87 Difference]: Start difference. First operand 126 states and 193 transitions. cyclomatic complexity: 72 Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-21 19:45:53,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:53,203 INFO L93 Difference]: Finished difference Result 168 states and 259 transitions. [2021-10-21 19:45:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:45:53,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 259 transitions. [2021-10-21 19:45:53,208 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 58 [2021-10-21 19:45:53,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 162 states and 253 transitions. [2021-10-21 19:45:53,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2021-10-21 19:45:53,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2021-10-21 19:45:53,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 162 states and 253 transitions. [2021-10-21 19:45:53,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:45:53,213 INFO L681 BuchiCegarLoop]: Abstraction has 162 states and 253 transitions. [2021-10-21 19:45:53,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states and 253 transitions. [2021-10-21 19:45:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 122. [2021-10-21 19:45:53,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 81 states have internal predecessors, (91), 36 states have call successors, (36), 6 states have call predecessors, (36), 10 states have return successors, (58), 34 states have call predecessors, (58), 36 states have call successors, (58) [2021-10-21 19:45:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 185 transitions. [2021-10-21 19:45:53,247 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 185 transitions. [2021-10-21 19:45:53,247 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 185 transitions. [2021-10-21 19:45:53,248 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 19:45:53,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 185 transitions. [2021-10-21 19:45:53,249 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2021-10-21 19:45:53,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:53,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:53,251 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:45:53,254 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [11, 11, 6, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:53,255 INFO L791 eck$LassoCheckResult]: Stem: 2013#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 2014#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 2044#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 2045#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2049#L42-3 [2021-10-21 19:45:53,255 INFO L793 eck$LassoCheckResult]: Loop: 2049#L42-3 assume !!(main_~k~0 <= main_~x~0); 2078#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1999#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#67#return; 1997#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume ~n <= 0;#res := 1; 2076#factFINAL assume true; 1991#factEXIT >#69#return; 1996#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#71#return; 2002#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2108#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 2042#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2027#L42-3 assume !!(main_~k~0 <= main_~x~0); 2028#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1994#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#73#return; 1995#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#75#return; 1992#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#77#return; 2065#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2063#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 2060#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2059#L42-3 assume !(main_~k~0 <= main_~x~0); 2056#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 2048#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2049#L42-3 [2021-10-21 19:45:53,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:53,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 2 times [2021-10-21 19:45:53,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:53,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333831263] [2021-10-21 19:45:53,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:53,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:53,266 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:53,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:53,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:53,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1284734623, now seen corresponding path program 1 times [2021-10-21 19:45:53,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:53,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881308448] [2021-10-21 19:45:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:53,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:53,287 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:53,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814416029] [2021-10-21 19:45:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:53,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:53,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:53,290 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:53,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-21 19:45:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:53,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:45:53,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:53,747 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 142 proven. 18 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-10-21 19:45:53,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:53,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881308448] [2021-10-21 19:45:53,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:45:53,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814416029] [2021-10-21 19:45:53,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814416029] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:45:53,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:45:53,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-10-21 19:45:53,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292311977] [2021-10-21 19:45:53,750 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:45:53,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:53,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:45:53,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:45:53,752 INFO L87 Difference]: Start difference. First operand 122 states and 185 transitions. cyclomatic complexity: 68 Second operand has 10 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 6 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-21 19:45:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:54,060 INFO L93 Difference]: Finished difference Result 185 states and 292 transitions. [2021-10-21 19:45:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:45:54,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 185 states and 292 transitions. [2021-10-21 19:45:54,064 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 67 [2021-10-21 19:45:54,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 185 states to 185 states and 292 transitions. [2021-10-21 19:45:54,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2021-10-21 19:45:54,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2021-10-21 19:45:54,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 185 states and 292 transitions. [2021-10-21 19:45:54,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:45:54,069 INFO L681 BuchiCegarLoop]: Abstraction has 185 states and 292 transitions. [2021-10-21 19:45:54,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states and 292 transitions. [2021-10-21 19:45:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 152. [2021-10-21 19:45:54,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 96 states have (on average 1.15625) internal successors, (111), 101 states have internal predecessors, (111), 46 states have call successors, (46), 6 states have call predecessors, (46), 10 states have return successors, (78), 44 states have call predecessors, (78), 46 states have call successors, (78) [2021-10-21 19:45:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 235 transitions. [2021-10-21 19:45:54,080 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 235 transitions. [2021-10-21 19:45:54,081 INFO L587 BuchiCegarLoop]: Abstraction has 152 states and 235 transitions. [2021-10-21 19:45:54,081 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 19:45:54,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 235 transitions. [2021-10-21 19:45:54,082 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 52 [2021-10-21 19:45:54,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:54,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:54,084 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:45:54,084 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [17, 17, 9, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:54,085 INFO L791 eck$LassoCheckResult]: Stem: 2555#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 2556#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 2585#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 2586#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2592#L42-3 [2021-10-21 19:45:54,085 INFO L793 eck$LassoCheckResult]: Loop: 2592#L42-3 assume !!(main_~k~0 <= main_~x~0); 2639#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 2624#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#67#return; 2571#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume ~n <= 0;#res := 1; 2638#factFINAL assume true; 2622#factEXIT >#69#return; 2625#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#71#return; 2627#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2680#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 2583#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2569#L42-3 assume !!(main_~k~0 <= main_~x~0); 2565#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 2566#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#67#return; 2623#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#69#return; 2553#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#71#return; 2626#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2686#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 2636#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2634#L42-3 assume !!(main_~k~0 <= main_~x~0); 2605#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 2535#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#73#return; 2573#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#75#return; 2595#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#77#return; 2575#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2576#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 2606#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2604#L42-3 assume !(main_~k~0 <= main_~x~0); 2601#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 2591#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2592#L42-3 [2021-10-21 19:45:54,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:54,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 3 times [2021-10-21 19:45:54,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:54,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416300821] [2021-10-21 19:45:54,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:54,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:54,091 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:54,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:54,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:54,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1420952905, now seen corresponding path program 2 times [2021-10-21 19:45:54,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:54,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135088163] [2021-10-21 19:45:54,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:54,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:54,107 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:54,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711478350] [2021-10-21 19:45:54,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:45:54,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:54,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:54,114 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:54,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-10-21 19:45:54,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:45:54,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:45:54,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 19:45:54,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:54,644 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 355 proven. 48 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-10-21 19:45:54,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:54,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135088163] [2021-10-21 19:45:54,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:45:54,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711478350] [2021-10-21 19:45:54,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711478350] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:45:54,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:45:54,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-10-21 19:45:54,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875241634] [2021-10-21 19:45:54,646 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:45:54,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:54,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 19:45:54,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:45:54,647 INFO L87 Difference]: Start difference. First operand 152 states and 235 transitions. cyclomatic complexity: 88 Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 11 states have internal predecessors, (37), 6 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2021-10-21 19:45:55,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:55,055 INFO L93 Difference]: Finished difference Result 285 states and 466 transitions. [2021-10-21 19:45:55,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:45:55,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 466 transitions. [2021-10-21 19:45:55,063 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 96 [2021-10-21 19:45:55,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 466 transitions. [2021-10-21 19:45:55,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2021-10-21 19:45:55,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 143 [2021-10-21 19:45:55,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 466 transitions. [2021-10-21 19:45:55,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:45:55,071 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 466 transitions. [2021-10-21 19:45:55,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 466 transitions. [2021-10-21 19:45:55,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 238. [2021-10-21 19:45:55,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 154 states have (on average 1.1233766233766234) internal successors, (173), 157 states have internal predecessors, (173), 68 states have call successors, (68), 10 states have call predecessors, (68), 16 states have return successors, (170), 70 states have call predecessors, (170), 68 states have call successors, (170) [2021-10-21 19:45:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 411 transitions. [2021-10-21 19:45:55,094 INFO L704 BuchiCegarLoop]: Abstraction has 238 states and 411 transitions. [2021-10-21 19:45:55,094 INFO L587 BuchiCegarLoop]: Abstraction has 238 states and 411 transitions. [2021-10-21 19:45:55,094 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 19:45:55,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 238 states and 411 transitions. [2021-10-21 19:45:55,097 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 83 [2021-10-21 19:45:55,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:55,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:55,099 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:45:55,099 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [18, 18, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:55,099 INFO L791 eck$LassoCheckResult]: Stem: 3373#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 3374#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 3404#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 3405#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 3407#L42-3 [2021-10-21 19:45:55,100 INFO L793 eck$LassoCheckResult]: Loop: 3407#L42-3 assume !!(main_~k~0 <= main_~x~0); 3484#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 3371#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#67#return; 3389#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume ~n <= 0;#res := 1; 3442#factFINAL assume true; 3440#factEXIT >#69#return; 3435#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume !(~n <= 0); 3337#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3341#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3480#factFINAL assume true; 3336#factEXIT >#65#return; 3342#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3445#factFINAL assume true; 3446#factEXIT >#71#return; 3468#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 3476#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 3475#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 3474#L42-3 assume !!(main_~k~0 <= main_~x~0); 3473#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 3434#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#67#return; 3433#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#69#return; 3430#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume !(~n <= 0); 3337#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3341#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3480#factFINAL assume true; 3336#factEXIT >#65#return; 3342#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3445#factFINAL assume true; 3446#factEXIT >#71#return; 3467#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 3466#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 3465#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 3464#L42-3 assume !!(main_~k~0 <= main_~x~0); 3463#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 3332#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#73#return; 3391#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume ~n <= 0;#res := 1; 3442#factFINAL assume true; 3440#factEXIT >#75#return; 3410#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#77#return; 3393#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 3394#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 3421#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 3419#L42-3 assume !(main_~k~0 <= main_~x~0); 3416#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 3406#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 3407#L42-3 [2021-10-21 19:45:55,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:55,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 4 times [2021-10-21 19:45:55,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:55,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348706759] [2021-10-21 19:45:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:55,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:55,108 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:55,112 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:55,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:55,112 INFO L82 PathProgramCache]: Analyzing trace with hash 191172013, now seen corresponding path program 3 times [2021-10-21 19:45:55,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:55,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239171155] [2021-10-21 19:45:55,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:55,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:55,130 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:55,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1848300113] [2021-10-21 19:45:55,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:45:55,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:55,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:55,146 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:55,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-10-21 19:45:55,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-21 19:45:55,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:45:55,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 19:45:55,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 125 proven. 63 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-10-21 19:45:55,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:55,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239171155] [2021-10-21 19:45:55,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:45:55,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848300113] [2021-10-21 19:45:55,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848300113] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:45:55,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:45:55,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-21 19:45:55,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435055824] [2021-10-21 19:45:55,834 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:45:55,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:55,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:45:55,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:45:55,836 INFO L87 Difference]: Start difference. First operand 238 states and 411 transitions. cyclomatic complexity: 179 Second operand has 14 states, 11 states have (on average 2.909090909090909) internal successors, (32), 14 states have internal predecessors, (32), 7 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-21 19:45:56,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:56,892 INFO L93 Difference]: Finished difference Result 604 states and 1105 transitions. [2021-10-21 19:45:56,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 19:45:56,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 604 states and 1105 transitions. [2021-10-21 19:45:56,925 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 229 [2021-10-21 19:45:56,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 604 states to 598 states and 1099 transitions. [2021-10-21 19:45:56,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 298 [2021-10-21 19:45:56,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 298 [2021-10-21 19:45:56,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 598 states and 1099 transitions. [2021-10-21 19:45:56,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:45:56,941 INFO L681 BuchiCegarLoop]: Abstraction has 598 states and 1099 transitions. [2021-10-21 19:45:56,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states and 1099 transitions. [2021-10-21 19:45:56,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 279. [2021-10-21 19:45:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 178 states have (on average 1.1292134831460674) internal successors, (201), 179 states have internal predecessors, (201), 85 states have call successors, (85), 10 states have call predecessors, (85), 16 states have return successors, (213), 89 states have call predecessors, (213), 85 states have call successors, (213) [2021-10-21 19:45:56,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 499 transitions. [2021-10-21 19:45:56,982 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 499 transitions. [2021-10-21 19:45:56,982 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 499 transitions. [2021-10-21 19:45:56,982 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 19:45:56,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 499 transitions. [2021-10-21 19:45:56,985 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2021-10-21 19:45:56,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:56,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:56,988 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:45:56,988 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [17, 17, 9, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:56,988 INFO L791 eck$LassoCheckResult]: Stem: 4619#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 4620#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 4652#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 4653#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 4655#L42-3 [2021-10-21 19:45:56,989 INFO L793 eck$LassoCheckResult]: Loop: 4655#L42-3 assume !!(main_~k~0 <= main_~x~0); 4711#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 4679#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#67#return; 4670#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume ~n <= 0;#res := 1; 4694#factFINAL assume true; 4690#factEXIT >#69#return; 4669#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#71#return; 4693#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 4825#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 4822#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 4821#L42-3 assume !!(main_~k~0 <= main_~x~0); 4820#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 4668#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#67#return; 4671#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#69#return; 4684#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 4695#factENTRY ~n := #in~n; 4696#L25 assume ~n <= 0;#res := 1; 4694#factFINAL assume true; 4690#factEXIT >#71#return; 4692#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 4818#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 4797#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 4795#L42-3 assume !!(main_~k~0 <= main_~x~0); 4663#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 4673#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume !(~n <= 0); 4701#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4703#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4710#factFINAL assume true; 4705#factEXIT >#65#return; 4699#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4697#factFINAL assume true; 4667#factEXIT >#73#return; 4680#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#75#return; 4677#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#77#return; 4666#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 4665#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 4664#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 4662#L42-3 assume !(main_~k~0 <= main_~x~0); 4658#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 4654#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 4655#L42-3 [2021-10-21 19:45:56,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:56,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 5 times [2021-10-21 19:45:56,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:56,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108196025] [2021-10-21 19:45:56,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:56,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:56,998 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:57,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:57,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:57,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1578538653, now seen corresponding path program 4 times [2021-10-21 19:45:57,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:57,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533147865] [2021-10-21 19:45:57,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:57,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:57,023 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:57,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1319685063] [2021-10-21 19:45:57,024 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:45:57,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:57,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:57,029 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:57,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-10-21 19:45:57,306 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:45:57,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-21 19:45:57,307 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:57,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:57,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:57,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1613108234, now seen corresponding path program 1 times [2021-10-21 19:45:57,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:57,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909960595] [2021-10-21 19:45:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:57,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:57,377 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:45:57,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1517107760] [2021-10-21 19:45:57,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:57,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:45:57,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:57,388 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:45:57,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-10-21 19:45:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:57,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:45:57,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:57,976 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 143 proven. 1 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-10-21 19:45:57,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:57,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909960595] [2021-10-21 19:45:57,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:45:57,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517107760] [2021-10-21 19:45:57,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517107760] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:45:57,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:45:57,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 19:45:57,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168610348] [2021-10-21 19:46:35,661 WARN L207 SmtUtils]: Spent 36.82 s on a formula simplification. DAG size of input: 192 DAG size of output: 1 [2021-10-21 19:46:35,665 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: loopTF is false but loop analysis said: feasible at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.computeLoopTF(LassoCheck.java:343) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:833) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-21 19:46:35,668 INFO L168 Benchmark]: Toolchain (without parser) took 56427.84 ms. Allocated memory was 104.9 MB in the beginning and 195.0 MB in the end (delta: 90.2 MB). Free memory was 62.8 MB in the beginning and 124.2 MB in the end (delta: -61.4 MB). Peak memory consumption was 111.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:35,668 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 79.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:35,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.38 ms. Allocated memory is still 104.9 MB. Free memory was 62.6 MB in the beginning and 80.3 MB in the end (delta: -17.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:35,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.10 ms. Allocated memory is still 104.9 MB. Free memory was 80.3 MB in the beginning and 79.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:35,670 INFO L168 Benchmark]: Boogie Preprocessor took 43.21 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 77.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:35,670 INFO L168 Benchmark]: RCFGBuilder took 350.15 ms. Allocated memory is still 104.9 MB. Free memory was 77.9 MB in the beginning and 68.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:35,671 INFO L168 Benchmark]: BuchiAutomizer took 55680.98 ms. Allocated memory was 104.9 MB in the beginning and 195.0 MB in the end (delta: 90.2 MB). Free memory was 67.7 MB in the beginning and 124.2 MB in the end (delta: -56.5 MB). Peak memory consumption was 117.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:35,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 79.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.38 ms. Allocated memory is still 104.9 MB. Free memory was 62.6 MB in the beginning and 80.3 MB in the end (delta: -17.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.10 ms. Allocated memory is still 104.9 MB. Free memory was 80.3 MB in the beginning and 79.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.21 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 77.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 350.15 ms. Allocated memory is still 104.9 MB. Free memory was 77.9 MB in the beginning and 68.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 55680.98 ms. Allocated memory was 104.9 MB in the beginning and 195.0 MB in the end (delta: 90.2 MB). Free memory was 67.7 MB in the beginning and 124.2 MB in the end (delta: -56.5 MB). Peak memory consumption was 117.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: loopTF is false but loop analysis said: feasible de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: loopTF is false but loop analysis said: feasible: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.computeLoopTF(LassoCheck.java:343) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-21 19:46:35,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:35,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:36,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2021-10-21 19:46:36,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2021-10-21 19:46:36,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2021-10-21 19:46:36,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:36,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2021-10-21 19:46:37,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-10-21 19:46:37,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-21 19:46:37,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:37,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:37,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-21 19:46:38,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-21 19:46:38,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:38,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907004d3-7925-4a92-91ea-141eda0facce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...