./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc --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 1ab1611c68b20ff5721c195b0d2c7506cb1678fd2a0003f8a2214f630d652abe --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:15:13,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:15:13,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:15:13,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:15:13,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:15:13,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:15:13,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:15:13,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:15:13,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:15:13,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:15:13,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:15:13,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:15:13,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:15:13,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:15:13,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:15:13,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:15:13,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:15:13,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:15:13,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:15:13,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:15:13,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:15:13,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:15:13,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:15:13,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:15:13,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:15:13,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:15:13,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:15:13,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:15:13,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:15:13,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:15:13,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:15:13,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:15:13,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:15:13,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:15:13,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:15:13,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:15:13,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:15:13,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:15:13,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:15:13,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:15:13,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:15:13,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:15:13,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:15:13,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:15:13,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:15:13,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:15:13,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:15:13,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:15:13,831 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:15:13,832 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:15:13,832 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:15:13,832 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:15:13,833 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:15:13,834 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:15:13,834 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:15:13,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:15:13,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:15:13,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:15:13,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:15:13,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:15:13,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:15:13,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:15:13,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:15:13,837 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:15:13,837 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:15:13,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:15:13,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:15:13,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:15:13,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:15:13,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:15:13,840 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:15:13,840 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_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ab1611c68b20ff5721c195b0d2c7506cb1678fd2a0003f8a2214f630d652abe [2022-11-02 20:15:14,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:15:14,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:15:14,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:15:14,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:15:14,346 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:15:14,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c [2022-11-02 20:15:14,442 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/data/cc12090ff/948cf3f8d7d74c44b321a7464d9aa39d/FLAGf84a94115 [2022-11-02 20:15:15,145 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:15:15,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c [2022-11-02 20:15:15,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/data/cc12090ff/948cf3f8d7d74c44b321a7464d9aa39d/FLAGf84a94115 [2022-11-02 20:15:15,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/data/cc12090ff/948cf3f8d7d74c44b321a7464d9aa39d [2022-11-02 20:15:15,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:15:15,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:15:15,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:15:15,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:15:15,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:15:15,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779b0c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15, skipping insertion in model container [2022-11-02 20:15:15,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:15:15,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:15:15,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:15:15,802 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:15:15,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:15:15,834 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:15:15,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15 WrapperNode [2022-11-02 20:15:15,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:15:15,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:15:15,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:15:15,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:15:15,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,878 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2022-11-02 20:15:15,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:15:15,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:15:15,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:15:15,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:15:15,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,904 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:15:15,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:15:15,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:15:15,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:15:15,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (1/1) ... [2022-11-02 20:15:15,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:15,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:15,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:15,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:15:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-02 20:15:16,035 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-02 20:15:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:15:16,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:15:16,117 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:15:16,121 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:15:16,268 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:15:16,277 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:15:16,277 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:15:16,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:16 BoogieIcfgContainer [2022-11-02 20:15:16,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:15:16,282 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:15:16,282 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:15:16,287 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:15:16,288 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:15:16,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:15:15" (1/3) ... [2022-11-02 20:15:16,290 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@683678bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:15:16, skipping insertion in model container [2022-11-02 20:15:16,290 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:15:16,291 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:15" (2/3) ... [2022-11-02 20:15:16,291 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@683678bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:15:16, skipping insertion in model container [2022-11-02 20:15:16,291 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:15:16,292 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:16" (3/3) ... [2022-11-02 20:15:16,293 INFO L332 chiAutomizerObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex5.c [2022-11-02 20:15:16,366 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:15:16,366 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:15:16,366 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:15:16,367 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:15:16,367 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:15:16,367 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:15:16,367 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:15:16,368 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:15:16,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:15:16,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 20:15:16,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:15:16,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:15:16,423 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 20:15:16,436 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:15:16,436 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:15:16,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:15:16,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 20:15:16,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:15:16,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:15:16,441 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 20:15:16,441 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:15:16,452 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 16#L28true assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 8#L29true call main_#t~ret4#1 := f(main_~x~0#1, main_~y~0#1);< 13#fENTRYtrue [2022-11-02 20:15:16,455 INFO L750 eck$LassoCheckResult]: Loop: 13#fENTRYtrue ~x := #in~x;~y := #in~y; 6#L14true assume !(0 == ~y); 17#L17true assume 0 == ~x; 15#L18true call #t~ret0 := f(~y, ~y - 1);< 13#fENTRYtrue [2022-11-02 20:15:16,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1356593, now seen corresponding path program 1 times [2022-11-02 20:15:16,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:16,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380921835] [2022-11-02 20:15:16,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:16,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:16,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:16,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:16,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:16,692 INFO L85 PathProgramCache]: Analyzing trace with hash 927611, now seen corresponding path program 1 times [2022-11-02 20:15:16,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:16,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527386429] [2022-11-02 20:15:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:16,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:16,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:16,713 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:16,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:16,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1288322389, now seen corresponding path program 1 times [2022-11-02 20:15:16,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:16,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006962508] [2022-11-02 20:15:16,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:16,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:16,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:16,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:16,960 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:15:16,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:15:16,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:15:16,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:15:16,962 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:15:16,962 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:16,962 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:15:16,962 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:15:16,963 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex5.c_Iteration1_Loop [2022-11-02 20:15:16,963 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:15:16,963 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:15:17,002 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,032 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,061 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,083 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,098 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,111 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,271 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:15:17,272 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:15:17,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:17,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:17,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:17,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:17,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:17,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:15:17,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:15:17,331 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~x=0} Honda state: {f_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:15:17,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-02 20:15:17,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:17,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:17,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:17,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:17,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:17,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:15:17,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:15:17,435 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret1=0} Honda state: {f_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:15:17,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:17,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:17,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:17,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:17,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:15:17,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:17,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:17,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:17,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:17,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:17,580 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:17,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:15:17,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:17,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:15:17,693 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:15:17,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:17,698 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:15:17,698 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:15:17,698 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:15:17,699 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:15:17,699 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:15:17,699 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:17,699 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:15:17,699 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:15:17,699 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex5.c_Iteration1_Loop [2022-11-02 20:15:17,699 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:15:17,700 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:15:17,702 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,730 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,755 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,765 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,770 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:17,944 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:15:17,970 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:15:17,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:17,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:17,975 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:17,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:15:18,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:15:18,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:18,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:18,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:18,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:18,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:18,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:15:18,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:18,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:18,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:18,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:18,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:18,073 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:18,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:15:18,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:15:18,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:18,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:18,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:18,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:18,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:18,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:15:18,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:18,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:18,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:18,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:18,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:18,158 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:18,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:15:18,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:15:18,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:18,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:18,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:18,186 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:15:18,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:18,192 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:15:18,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:18,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:18,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:18,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:18,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:18,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:18,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:15:18,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:15:18,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:18,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:18,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:18,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:18,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:18,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:15:18,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:18,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:18,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:18,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:18,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:18,365 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:18,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:15:18,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:15:18,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:18,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:18,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:18,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:18,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:18,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:15:18,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:18,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:18,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:18,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:18,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:18,429 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:18,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:15:18,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:15:18,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:18,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:18,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:18,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:18,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:18,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:15:18,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:18,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:18,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:18,488 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-02 20:15:18,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:18,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:18,494 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:18,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 20:15:18,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:15:18,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:18,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:18,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:18,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:18,514 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-02 20:15:18,515 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-02 20:15:18,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:18,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:18,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:18,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:18,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:18,580 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:18,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 20:15:18,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:15:18,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:18,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:18,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:18,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:18,603 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-02 20:15:18,604 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-02 20:15:18,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:18,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:18,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:18,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:18,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:18,642 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:18,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 20:15:18,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:15:18,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:18,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:18,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:18,658 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:15:18,659 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-02 20:15:18,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:15:18,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:18,706 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:15:18,715 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:15:18,715 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:15:18,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:18,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:18,719 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:18,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 20:15:18,743 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:15:18,744 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:15:18,744 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:15:18,745 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*f_#in~y + 1 f1 = 2*f_#in~x + 1 Supporting invariants [] [2022-11-02 20:15:18,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:18,783 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:15:18,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:18,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:15:18,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:15:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:18,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-02 20:15:18,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:15:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:19,354 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-02 20:15:19,357 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:19,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:19,905 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 60 transitions. Complement of second has 16 states. [2022-11-02 20:15:19,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-02 20:15:19,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:19,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2022-11-02 20:15:19,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-02 20:15:19,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:15:19,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2022-11-02 20:15:19,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:15:19,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2022-11-02 20:15:19,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:15:19,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2022-11-02 20:15:19,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 20:15:19,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 23 states and 26 transitions. [2022-11-02 20:15:19,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-02 20:15:19,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-02 20:15:19,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions. [2022-11-02 20:15:19,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:15:19,935 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-02 20:15:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions. [2022-11-02 20:15:19,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2022-11-02 20:15:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-02 20:15:19,971 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-02 20:15:19,972 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-02 20:15:19,972 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:15:19,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2022-11-02 20:15:19,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 20:15:19,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:15:19,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:15:19,974 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:19,974 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:15:19,974 INFO L748 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 135#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 145#L28 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 139#L29 call main_#t~ret4#1 := f(main_~x~0#1, main_~y~0#1);< 146#fENTRY ~x := #in~x;~y := #in~y; 136#L14 assume !(0 == ~y); 138#L17 assume !(0 == ~x); 142#L20 [2022-11-02 20:15:19,974 INFO L750 eck$LassoCheckResult]: Loop: 142#L20 call #t~ret1 := f(~y, ~x - 1);< 143#fENTRY ~x := #in~x;~y := #in~y; 149#L14 assume !(0 == ~y); 148#L17 assume !(0 == ~x); 142#L20 [2022-11-02 20:15:19,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:19,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1759556533, now seen corresponding path program 1 times [2022-11-02 20:15:19,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:19,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500758747] [2022-11-02 20:15:19,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:19,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:19,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:19,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:19,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:19,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1847176, now seen corresponding path program 1 times [2022-11-02 20:15:19,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:19,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359020921] [2022-11-02 20:15:19,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:19,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:20,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:20,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:20,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:20,009 INFO L85 PathProgramCache]: Analyzing trace with hash -581703364, now seen corresponding path program 1 times [2022-11-02 20:15:20,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:20,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424239707] [2022-11-02 20:15:20,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:20,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:20,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:20,154 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:15:20,154 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:15:20,154 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:15:20,154 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:15:20,154 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:15:20,154 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:20,155 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:15:20,155 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:15:20,155 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex5.c_Iteration2_Loop [2022-11-02 20:15:20,155 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:15:20,155 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:15:20,156 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:20,160 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:20,164 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:20,168 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:15:20,377 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:15:20,377 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:15:20,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:20,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:20,379 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:20,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:20,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:20,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-02 20:15:20,425 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:15:20,425 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret1=0} Honda state: {f_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:15:20,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:20,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:20,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:20,482 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:20,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:20,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:20,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-02 20:15:20,530 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:15:20,531 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret0=0} Honda state: {f_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:15:20,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:20,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:20,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:20,585 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:20,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:20,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:20,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-02 20:15:20,626 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:15:20,627 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#res=0} Honda state: {f_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:15:20,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:20,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:20,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:20,678 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:20,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:20,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:20,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-02 20:15:20,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:20,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:20,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:20,795 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:20,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:15:20,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:20,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4072b4f2-d182-41e7-be40-d9b1ac86a13c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process