./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ --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 eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 --- 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-dbf71c6-m [2022-10-17 10:58:31,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:58:31,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:58:31,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:58:31,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:58:31,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:58:31,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:58:31,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:58:31,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:58:31,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:58:31,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:58:31,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:58:31,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:58:31,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:58:31,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:58:31,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:58:31,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:58:31,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:58:31,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:58:31,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:58:31,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:58:31,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:58:31,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:58:31,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:58:31,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:58:31,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:58:31,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:58:31,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:58:31,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:58:31,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:58:31,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:58:31,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:58:31,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:58:31,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:58:31,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:58:31,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:58:31,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:58:31,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:58:31,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:58:31,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:58:31,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:58:31,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:58:31,819 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:58:31,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:58:31,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:58:31,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:58:31,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:58:31,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:58:31,823 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:58:31,823 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:58:31,823 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:58:31,823 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:58:31,824 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:58:31,825 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:58:31,825 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:58:31,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:58:31,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:58:31,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:58:31,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:58:31,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:58:31,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:58:31,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:58:31,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:58:31,827 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:58:31,827 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:58:31,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:58:31,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:58:31,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:58:31,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:58:31,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:58:31,831 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:58:31,831 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_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 [2022-10-17 10:58:32,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:58:32,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:58:32,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:58:32,151 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:58:32,152 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:58:32,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-restricted-15/NO_13.c [2022-10-17 10:58:32,252 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/data/20336d02e/399b7756cc99451cb72cfc61482e74fb/FLAGd0885529c [2022-10-17 10:58:32,621 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:58:32,622 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/sv-benchmarks/c/termination-restricted-15/NO_13.c [2022-10-17 10:58:32,629 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/data/20336d02e/399b7756cc99451cb72cfc61482e74fb/FLAGd0885529c [2022-10-17 10:58:32,650 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/data/20336d02e/399b7756cc99451cb72cfc61482e74fb [2022-10-17 10:58:32,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:58:32,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:58:32,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:58:32,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:58:32,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:58:32,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66853c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32, skipping insertion in model container [2022-10-17 10:58:32,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:58:32,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:58:32,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:58:32,848 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:58:32,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:58:32,887 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:58:32,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32 WrapperNode [2022-10-17 10:58:32,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:58:32,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:58:32,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:58:32,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:58:32,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,922 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-10-17 10:58:32,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:58:32,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:58:32,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:58:32,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:58:32,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:58:32,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:58:32,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:58:32,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:58:32,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (1/1) ... [2022-10-17 10:58:32,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:32,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:32,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:32,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:58:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:58:33,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:58:33,096 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:58:33,098 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:58:33,165 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:58:33,171 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:58:33,171 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:58:33,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:58:33 BoogieIcfgContainer [2022-10-17 10:58:33,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:58:33,173 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:58:33,174 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:58:33,178 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:58:33,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:58:33,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:58:32" (1/3) ... [2022-10-17 10:58:33,180 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@565d8a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:58:33, skipping insertion in model container [2022-10-17 10:58:33,181 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:58:33,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:32" (2/3) ... [2022-10-17 10:58:33,185 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@565d8a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:58:33, skipping insertion in model container [2022-10-17 10:58:33,186 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:58:33,186 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:58:33" (3/3) ... [2022-10-17 10:58:33,187 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_13.c [2022-10-17 10:58:33,248 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:58:33,249 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:58:33,249 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:58:33,249 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:58:33,249 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:58:33,249 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:58:33,250 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:58:33,250 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:58:33,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:33,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:58:33,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:33,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:33,284 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:58:33,285 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:58:33,285 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:58:33,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:33,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:58:33,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:33,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:33,287 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:58:33,288 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:58:33,296 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2#L12-2true [2022-10-17 10:58:33,296 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~i~0#1 < main_~j~0#1); 8#L12true assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2#L12-2true [2022-10-17 10:58:33,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:33,307 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:58:33,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:33,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631902599] [2022-10-17 10:58:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:33,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:33,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:33,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:33,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:33,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-10-17 10:58:33,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:33,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012988100] [2022-10-17 10:58:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:33,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:33,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:33,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:33,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:33,508 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-10-17 10:58:33,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:33,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842895085] [2022-10-17 10:58:33,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:33,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:33,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:33,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:33,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842895085] [2022-10-17 10:58:33,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842895085] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:58:33,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:58:33,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:58:33,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095825936] [2022-10-17 10:58:33,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:33,775 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:33,775 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:33,776 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:33,776 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:33,776 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:33,776 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:33,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:33,776 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:33,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2022-10-17 10:58:33,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:33,777 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:33,836 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:33,848 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:33,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:33,939 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:33,940 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:33,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:33,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:33,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:33,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:33,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:33,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:58:33,976 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:58:33,977 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:58:34,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:34,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:34,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:34,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:34,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:34,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:34,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:58:34,037 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:58:34,037 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:58:34,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:34,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:34,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:34,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:34,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:34,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:34,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:58:34,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:34,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:34,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:34,142 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:34,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:58:34,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:34,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:34,201 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:34,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:34,222 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:34,222 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:34,222 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:34,223 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:34,223 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:34,223 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:34,223 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:34,223 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:34,223 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2022-10-17 10:58:34,223 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:34,223 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:34,225 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:34,233 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:34,241 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:34,315 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:34,319 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:34,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:34,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:34,322 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:34,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:58:34,354 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 [2022-10-17 10:58:34,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:34,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:34,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:34,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:34,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:58:34,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:58:34,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:58:34,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:34,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:34,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:34,420 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:34,429 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 [2022-10-17 10:58:34,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:34,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:34,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:34,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:34,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:58:34,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:58:34,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:58:34,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:58:34,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:34,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:34,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:34,527 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:34,532 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 [2022-10-17 10:58:34,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:34,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:34,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:34,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:34,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:34,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:34,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:34,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:58:34,555 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:34,560 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:34,560 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:58:34,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:34,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:34,566 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:34,571 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:34,571 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:34,571 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:34,572 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2022-10-17 10:58:34,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:58:34,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:34,605 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:34,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:34,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:34,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:34,649 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:34,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:34,685 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:58:34,686 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:34,721 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 6 states. [2022-10-17 10:58:34,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:34,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-10-17 10:58:34,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2022-10-17 10:58:34,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:34,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2022-10-17 10:58:34,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:34,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2022-10-17 10:58:34,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:34,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2022-10-17 10:58:34,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:58:34,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-10-17 10:58:34,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-10-17 10:58:34,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-10-17 10:58:34,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-10-17 10:58:34,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:34,740 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-10-17 10:58:34,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-10-17 10:58:34,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-10-17 10:58:34,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-10-17 10:58:34,762 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-10-17 10:58:34,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:34,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:58:34,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:58:34,766 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:34,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:34,780 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2022-10-17 10:58:34,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2022-10-17 10:58:34,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:58:34,782 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2022-10-17 10:58:34,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 10:58:34,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-10-17 10:58:34,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2022-10-17 10:58:34,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:34,783 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-10-17 10:58:34,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2022-10-17 10:58:34,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-10-17 10:58:34,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:34,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-10-17 10:58:34,784 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-10-17 10:58:34,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:58:34,786 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-10-17 10:58:34,786 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:58:34,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2022-10-17 10:58:34,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:58:34,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:34,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:34,787 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:58:34,787 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:58:34,787 INFO L748 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 86#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 87#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 88#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 83#L12-2 [2022-10-17 10:58:34,787 INFO L750 eck$LassoCheckResult]: Loop: 83#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 84#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 83#L12-2 [2022-10-17 10:58:34,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:34,788 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-10-17 10:58:34,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:34,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57267303] [2022-10-17 10:58:34,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:34,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:34,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:34,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:34,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:34,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2022-10-17 10:58:34,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:34,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600867585] [2022-10-17 10:58:34,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:34,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:34,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:34,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:34,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:34,820 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2022-10-17 10:58:34,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:34,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729643313] [2022-10-17 10:58:34,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:34,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:34,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:34,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729643313] [2022-10-17 10:58:34,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729643313] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:34,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138757114] [2022-10-17 10:58:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:34,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:34,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:34,880 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:34,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-17 10:58:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:34,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:58:34,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:34,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:34,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:35,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138757114] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:58:35,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:58:35,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:58:35,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063964256] [2022-10-17 10:58:35,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:58:35,040 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:35,041 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:35,041 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:35,041 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:35,041 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:35,041 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,041 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:35,041 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:35,042 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2022-10-17 10:58:35,042 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:35,042 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:35,045 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:35,049 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:35,059 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:35,142 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:35,143 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:35,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:35,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:35,153 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:35,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:58:35,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:35,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:35,209 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:58:35,209 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:58:35,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:35,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:35,244 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:35,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:58:35,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:35,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:35,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:58:35,289 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:58:35,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:35,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:35,310 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:35,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:58:35,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:35,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:35,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:35,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:35,377 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:35,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:58:35,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:35,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:35,449 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:35,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:35,455 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:35,455 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:35,455 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:35,455 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:35,455 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:35,455 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,456 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:35,456 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:35,456 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2022-10-17 10:58:35,456 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:35,456 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:35,457 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:35,466 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:35,472 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:35,534 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:35,534 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:35,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:35,537 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:35,545 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 [2022-10-17 10:58:35,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:35,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:35,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:35,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:35,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:58:35,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:58:35,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:58:35,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:58:35,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:35,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:35,605 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:35,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:58:35,611 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 [2022-10-17 10:58:35,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:35,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:35,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:35,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:35,620 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:58:35,620 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:58:35,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:58:35,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:35,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:35,668 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:35,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:58:35,672 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 [2022-10-17 10:58:35,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:35,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:35,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:35,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:35,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:35,681 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:35,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:35,692 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:35,697 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:35,697 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:58:35,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:35,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:35,705 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:35,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:58:35,710 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:35,711 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:35,711 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:35,711 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2022-10-17 10:58:35,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:35,745 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:35,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:35,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:35,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:35,774 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:35,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:35,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:35,778 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:58:35,778 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-10-17 10:58:35,789 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 10 states and 13 transitions. Complement of second has 5 states. [2022-10-17 10:58:35,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:35,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-10-17 10:58:35,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 10:58:35,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2022-10-17 10:58:35,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:35,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2022-10-17 10:58:35,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:35,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2022-10-17 10:58:35,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:35,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2022-10-17 10:58:35,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:58:35,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2022-10-17 10:58:35,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-10-17 10:58:35,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:58:35,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-10-17 10:58:35,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:35,793 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:58:35,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-10-17 10:58:35,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-10-17 10:58:35,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2022-10-17 10:58:35,795 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:58:35,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:35,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:58:35,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:58:35,796 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:35,815 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-10-17 10:58:35,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2022-10-17 10:58:35,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:58:35,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2022-10-17 10:58:35,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-10-17 10:58:35,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-10-17 10:58:35,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2022-10-17 10:58:35,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:35,817 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-10-17 10:58:35,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2022-10-17 10:58:35,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-10-17 10:58:35,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:35,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-10-17 10:58:35,819 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-10-17 10:58:35,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:58:35,820 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-10-17 10:58:35,820 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:58:35,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2022-10-17 10:58:35,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:58:35,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:35,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:35,822 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1] [2022-10-17 10:58:35,822 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:58:35,822 INFO L748 eck$LassoCheckResult]: Stem: 195#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 196#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 197#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 198#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 193#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 194#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 204#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 203#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 202#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 201#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 200#L12-2 [2022-10-17 10:58:35,822 INFO L750 eck$LassoCheckResult]: Loop: 200#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 199#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 200#L12-2 [2022-10-17 10:58:35,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:35,823 INFO L85 PathProgramCache]: Analyzing trace with hash 742492623, now seen corresponding path program 2 times [2022-10-17 10:58:35,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:35,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3717378] [2022-10-17 10:58:35,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:35,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:35,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:35,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:35,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:35,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2022-10-17 10:58:35,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:35,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390316692] [2022-10-17 10:58:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:35,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:35,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:35,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:35,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:35,873 INFO L85 PathProgramCache]: Analyzing trace with hash 570839924, now seen corresponding path program 2 times [2022-10-17 10:58:35,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:35,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264161396] [2022-10-17 10:58:35,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:35,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:35,967 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:35,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:35,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264161396] [2022-10-17 10:58:35,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264161396] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:35,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387694181] [2022-10-17 10:58:35,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:58:35,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:35,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:35,969 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:36,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-17 10:58:36,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:58:36,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:58:36,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:58:36,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:36,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:36,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387694181] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:58:36,140 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:58:36,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-17 10:58:36,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733314777] [2022-10-17 10:58:36,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:58:36,164 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:36,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:36,165 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:36,165 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:36,165 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:36,165 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:36,165 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:36,165 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:36,165 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2022-10-17 10:58:36,165 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:36,165 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:36,167 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:36,176 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:36,179 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:36,237 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:36,237 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:36,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:36,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:36,242 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:36,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 10:58:36,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:36,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:36,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:36,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:36,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:36,303 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:36,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:36,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:36,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:58:36,353 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:36,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:36,355 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:36,355 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:36,355 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:36,355 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:36,355 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:36,355 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:36,356 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:36,356 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:36,356 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2022-10-17 10:58:36,356 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:36,356 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:36,357 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:36,395 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:36,398 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:36,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:36,452 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:36,452 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:36,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:36,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:36,453 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:36,464 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 [2022-10-17 10:58:36,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:36,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:36,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:36,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:36,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:36,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:36,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:36,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:58:36,493 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:36,497 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:36,497 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:58:36,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:36,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:36,499 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:36,501 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:36,501 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:36,501 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:36,501 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2022-10-17 10:58:36,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:58:36,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:36,541 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:36,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:36,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:36,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:36,586 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:36,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:36,589 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:58:36,589 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:36,596 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 14 transitions. Complement of second has 5 states. [2022-10-17 10:58:36,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:36,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:36,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-10-17 10:58:36,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2022-10-17 10:58:36,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:36,598 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:58:36,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:36,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:36,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:36,641 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:36,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:36,644 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:58:36,645 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:36,650 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 14 transitions. Complement of second has 5 states. [2022-10-17 10:58:36,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:36,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-10-17 10:58:36,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2022-10-17 10:58:36,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:36,652 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:58:36,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:36,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:36,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:36,686 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:36,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:36,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:36,689 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:58:36,689 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:36,698 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 17 states and 19 transitions. Complement of second has 4 states. [2022-10-17 10:58:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:36,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-10-17 10:58:36,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2022-10-17 10:58:36,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:36,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 12 letters. Loop has 2 letters. [2022-10-17 10:58:36,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:36,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 4 letters. [2022-10-17 10:58:36,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:36,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2022-10-17 10:58:36,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:58:36,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 16 transitions. [2022-10-17 10:58:36,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:58:36,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-10-17 10:58:36,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2022-10-17 10:58:36,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:36,703 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-10-17 10:58:36,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2022-10-17 10:58:36,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-10-17 10:58:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-10-17 10:58:36,705 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-10-17 10:58:36,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:36,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:58:36,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:58:36,707 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:36,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:36,761 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-10-17 10:58:36,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 34 transitions. [2022-10-17 10:58:36,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:58:36,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 28 transitions. [2022-10-17 10:58:36,768 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-10-17 10:58:36,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-10-17 10:58:36,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 28 transitions. [2022-10-17 10:58:36,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:36,769 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-10-17 10:58:36,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 28 transitions. [2022-10-17 10:58:36,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-10-17 10:58:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.08) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-10-17 10:58:36,774 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-10-17 10:58:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:58:36,776 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-10-17 10:58:36,777 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:58:36,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 27 transitions. [2022-10-17 10:58:36,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:58:36,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:36,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:36,780 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 1, 1] [2022-10-17 10:58:36,781 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:58:36,781 INFO L748 eck$LassoCheckResult]: Stem: 508#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 509#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 510#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 511#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 503#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 504#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 527#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 526#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 525#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 524#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 523#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 522#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 521#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 520#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 519#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 518#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 517#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 516#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 515#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 514#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 513#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 507#L12 [2022-10-17 10:58:36,781 INFO L750 eck$LassoCheckResult]: Loop: 507#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 512#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 507#L12 [2022-10-17 10:58:36,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:36,782 INFO L85 PathProgramCache]: Analyzing trace with hash -926509747, now seen corresponding path program 3 times [2022-10-17 10:58:36,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:36,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039443071] [2022-10-17 10:58:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:36,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:36,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:36,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:36,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:36,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-10-17 10:58:36,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:36,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948033864] [2022-10-17 10:58:36,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:36,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:36,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:36,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:36,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:36,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1317636150, now seen corresponding path program 4 times [2022-10-17 10:58:36,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:36,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068532926] [2022-10-17 10:58:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:36,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:36,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:36,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:36,928 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:36,928 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:36,928 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:36,928 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:36,928 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:36,928 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:36,929 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:36,929 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:36,929 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2022-10-17 10:58:36,929 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:36,929 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:36,930 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:36,932 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:36,935 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:36,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:36,978 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:36,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:36,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:36,979 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:36,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:36,985 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:37,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:58:37,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:58:37,018 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:58:37,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:37,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:37,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:37,057 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:37,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:37,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:37,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 10:58:37,082 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:58:37,082 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:58:37,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:37,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:37,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:37,111 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:37,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:37,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:37,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:58:37,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:37,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:37,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:37,178 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:37,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:58:37,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:37,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:37,245 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:37,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:37,252 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:37,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:37,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:37,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:37,252 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:37,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:37,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:37,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:37,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2022-10-17 10:58:37,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:37,252 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:37,253 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:37,257 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:37,259 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:37,307 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:37,307 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:37,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:37,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:37,308 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:37,317 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 [2022-10-17 10:58:37,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:37,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:37,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:37,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:37,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:58:37,329 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:58:37,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:58:37,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:58:37,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:37,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:37,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:37,382 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:37,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:58:37,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:37,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:37,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:37,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:37,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:58:37,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:58:37,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:58:37,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:58:37,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:37,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:37,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:37,449 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:37,454 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 [2022-10-17 10:58:37,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:37,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:37,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:37,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:37,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:37,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:37,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:37,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-10-17 10:58:37,511 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:37,516 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:37,516 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:58:37,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:37,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:37,526 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:37,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:37,528 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:37,528 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:37,528 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-10-17 10:58:37,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-10-17 10:58:37,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:37,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:37,569 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:37,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:37,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:37,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:37,639 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:37,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:37,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:37,657 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:58:37,658 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:37,669 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2022-10-17 10:58:37,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:37,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 10:58:37,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 2 letters. [2022-10-17 10:58:37,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:37,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 23 letters. Loop has 2 letters. [2022-10-17 10:58:37,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:37,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 4 letters. [2022-10-17 10:58:37,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:37,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 42 transitions. [2022-10-17 10:58:37,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:58:37,675 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 31 transitions. [2022-10-17 10:58:37,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 10:58:37,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-10-17 10:58:37,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2022-10-17 10:58:37,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:37,676 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-10-17 10:58:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2022-10-17 10:58:37,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-10-17 10:58:37,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-10-17 10:58:37,679 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-10-17 10:58:37,679 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-10-17 10:58:37,679 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:58:37,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2022-10-17 10:58:37,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:58:37,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:37,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:37,682 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 1, 1, 1] [2022-10-17 10:58:37,682 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:58:37,682 INFO L748 eck$LassoCheckResult]: Stem: 660#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 661#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 662#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 663#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 664#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 665#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 658#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 659#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 681#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 680#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 679#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 678#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 677#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 676#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 675#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 674#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 673#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 672#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 671#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 670#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 669#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 668#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 667#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 656#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 666#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 657#L12 [2022-10-17 10:58:37,682 INFO L750 eck$LassoCheckResult]: Loop: 657#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 655#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 657#L12 [2022-10-17 10:58:37,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:37,683 INFO L85 PathProgramCache]: Analyzing trace with hash 767012677, now seen corresponding path program 3 times [2022-10-17 10:58:37,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:37,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889391357] [2022-10-17 10:58:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:37,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:37,950 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:37,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:37,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889391357] [2022-10-17 10:58:37,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889391357] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:37,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095108794] [2022-10-17 10:58:37,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 10:58:37,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:37,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:37,953 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:37,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-17 10:58:37,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-10-17 10:58:37,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:58:37,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-17 10:58:37,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:38,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:38,260 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:38,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095108794] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:58:38,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:58:38,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2022-10-17 10:58:38,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064954784] [2022-10-17 10:58:38,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:58:38,262 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:58:38,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:38,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2022-10-17 10:58:38,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:38,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009888446] [2022-10-17 10:58:38,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:38,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:38,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:38,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:38,296 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:38,296 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:38,296 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:38,297 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:38,297 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:38,297 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:38,297 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:38,297 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:38,297 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2022-10-17 10:58:38,297 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:38,297 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:38,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:38,308 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:38,311 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:38,353 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:38,353 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:38,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:38,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:38,354 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:38,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-10-17 10:58:38,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:38,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:38,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:38,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:38,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:38,393 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:38,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-10-17 10:58:38,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:38,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:38,431 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:38,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-10-17 10:58:38,433 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:38,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:38,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:38,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:38,433 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:38,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:38,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:38,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:38,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2022-10-17 10:58:38,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:38,433 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:38,434 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:38,457 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:38,465 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:38,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:38,505 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:38,506 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:38,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:38,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:38,514 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:38,515 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 [2022-10-17 10:58:38,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:38,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:38,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:38,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:38,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:58:38,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:58:38,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-10-17 10:58:38,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:58:38,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:38,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:38,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:38,582 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:38,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-10-17 10:58:38,586 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 [2022-10-17 10:58:38,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:38,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:38,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:38,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:38,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:38,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:38,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:38,621 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:38,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:38,625 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:58:38,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:38,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:38,629 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:38,631 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:38,631 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:38,631 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:38,631 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-10-17 10:58:38,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-10-17 10:58:38,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:38,666 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:38,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:38,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:38,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:38,731 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:38,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:38,749 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:58:38,749 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:38,762 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2022-10-17 10:58:38,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:38,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 10:58:38,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 25 letters. Loop has 2 letters. [2022-10-17 10:58:38,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:38,764 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:58:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:38,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:38,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:38,817 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:38,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:38,834 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:58:38,834 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:38,847 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 43 transitions. Complement of second has 5 states. [2022-10-17 10:58:38,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:38,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:38,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-10-17 10:58:38,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 25 letters. Loop has 2 letters. [2022-10-17 10:58:38,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:38,849 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:58:38,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:38,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:38,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:38,911 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:38,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:38,931 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:58:38,931 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:38,944 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 45 transitions. Complement of second has 4 states. [2022-10-17 10:58:38,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:38,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:38,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-10-17 10:58:38,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 2 letters. [2022-10-17 10:58:38,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:38,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 27 letters. Loop has 2 letters. [2022-10-17 10:58:38,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:38,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 4 letters. [2022-10-17 10:58:38,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:38,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 45 transitions. [2022-10-17 10:58:38,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-10-17 10:58:38,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 29 states and 32 transitions. [2022-10-17 10:58:38,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-10-17 10:58:38,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-10-17 10:58:38,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 32 transitions. [2022-10-17 10:58:38,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:38,950 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-10-17 10:58:38,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 32 transitions. [2022-10-17 10:58:38,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-10-17 10:58:38,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-10-17 10:58:38,953 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-10-17 10:58:38,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-17 10:58:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-17 10:58:38,954 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 24 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:39,042 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2022-10-17 10:58:39,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 65 transitions. [2022-10-17 10:58:39,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:58:39,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 51 states and 53 transitions. [2022-10-17 10:58:39,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-10-17 10:58:39,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-10-17 10:58:39,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 53 transitions. [2022-10-17 10:58:39,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:39,048 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 53 transitions. [2022-10-17 10:58:39,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 53 transitions. [2022-10-17 10:58:39,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2022-10-17 10:58:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.04) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:39,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2022-10-17 10:58:39,055 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 52 transitions. [2022-10-17 10:58:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-17 10:58:39,056 INFO L428 stractBuchiCegarLoop]: Abstraction has 50 states and 52 transitions. [2022-10-17 10:58:39,056 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:58:39,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 52 transitions. [2022-10-17 10:58:39,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:58:39,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:39,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:39,059 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [24, 22, 1, 1, 1] [2022-10-17 10:58:39,059 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2022-10-17 10:58:39,060 INFO L748 eck$LassoCheckResult]: Stem: 1328#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1329#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1324#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1325#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1330#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1331#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1326#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1327#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1373#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1372#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1371#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1370#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1369#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1368#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1367#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1366#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1365#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1364#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1363#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1362#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1361#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1360#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1359#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1358#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1357#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1356#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1355#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1354#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1353#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1352#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1351#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1350#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1349#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1348#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1347#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1346#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1345#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1344#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1343#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1342#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1341#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1340#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1339#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1338#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1337#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1336#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1335#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1333#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1332#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1334#L12 [2022-10-17 10:58:39,060 INFO L750 eck$LassoCheckResult]: Loop: 1334#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1335#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1333#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1332#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1334#L12 [2022-10-17 10:58:39,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:39,060 INFO L85 PathProgramCache]: Analyzing trace with hash -694298463, now seen corresponding path program 4 times [2022-10-17 10:58:39,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:39,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154256208] [2022-10-17 10:58:39,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:39,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:39,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:39,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:39,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154256208] [2022-10-17 10:58:39,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154256208] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:39,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160500219] [2022-10-17 10:58:39,631 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-17 10:58:39,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:39,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:39,637 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:39,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-10-17 10:58:39,683 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-17 10:58:39,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:58:39,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-17 10:58:39,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:39,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:40,518 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:40,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160500219] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:58:40,518 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:58:40,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2022-10-17 10:58:40,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207469753] [2022-10-17 10:58:40,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:58:40,519 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:58:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:40,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2022-10-17 10:58:40,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:40,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812359648] [2022-10-17 10:58:40,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:40,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:40,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:40,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:40,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:40,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-17 10:58:40,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-10-17 10:58:40,574 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. cyclomatic complexity: 3 Second operand has 48 states, 48 states have (on average 2.0) internal successors, (96), 48 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:40,734 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2022-10-17 10:58:40,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 125 transitions. [2022-10-17 10:58:40,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:58:40,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 99 states and 101 transitions. [2022-10-17 10:58:40,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-10-17 10:58:40,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-10-17 10:58:40,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 101 transitions. [2022-10-17 10:58:40,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:40,738 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 101 transitions. [2022-10-17 10:58:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 101 transitions. [2022-10-17 10:58:40,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2022-10-17 10:58:40,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 97 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:40,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2022-10-17 10:58:40,744 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 100 transitions. [2022-10-17 10:58:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-17 10:58:40,745 INFO L428 stractBuchiCegarLoop]: Abstraction has 98 states and 100 transitions. [2022-10-17 10:58:40,746 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 10:58:40,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 100 transitions. [2022-10-17 10:58:40,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:58:40,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:40,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:40,750 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [48, 46, 1, 1, 1] [2022-10-17 10:58:40,751 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2022-10-17 10:58:40,751 INFO L748 eck$LassoCheckResult]: Stem: 1840#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1841#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1836#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1837#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1842#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1843#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1838#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1839#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1933#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1932#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1931#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1930#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1929#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1928#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1927#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1926#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1925#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1924#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1923#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1922#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1921#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1920#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1919#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1918#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1917#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1916#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1915#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1914#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1913#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1912#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1911#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1910#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1909#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1908#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1907#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1906#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1905#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1904#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1903#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1902#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1901#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1900#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1899#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1898#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1897#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1896#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1895#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1894#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1893#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1892#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1891#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1890#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1889#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1888#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1887#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1886#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1885#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1884#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1883#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1882#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1881#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1880#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1879#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1878#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1877#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1876#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1875#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1874#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1873#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1872#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1871#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1870#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1869#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1868#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1867#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1866#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1865#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1864#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1863#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1862#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1861#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1860#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1859#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1858#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1857#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1856#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1855#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1854#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1853#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1852#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1851#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1850#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1849#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1848#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1847#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1845#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1844#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1846#L12 [2022-10-17 10:58:40,751 INFO L750 eck$LassoCheckResult]: Loop: 1846#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1847#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1845#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1844#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1846#L12 [2022-10-17 10:58:40,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:40,752 INFO L85 PathProgramCache]: Analyzing trace with hash -818401447, now seen corresponding path program 5 times [2022-10-17 10:58:40,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:40,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786426217] [2022-10-17 10:58:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:40,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:42,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:42,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786426217] [2022-10-17 10:58:42,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786426217] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:42,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861116638] [2022-10-17 10:58:42,408 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-17 10:58:42,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:42,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:42,409 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:42,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-10-17 10:58:42,506 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2022-10-17 10:58:42,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:58:42,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-17 10:58:42,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:42,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:42,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:43,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:43,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861116638] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:58:43,882 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:58:43,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 51 [2022-10-17 10:58:43,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265490166] [2022-10-17 10:58:43,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:58:43,883 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:58:43,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:43,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2022-10-17 10:58:43,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:43,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286500694] [2022-10-17 10:58:43,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:43,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:43,887 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:43,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:43,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:43,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-17 10:58:43,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2022-10-17 10:58:43,932 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 51 states, 51 states have (on average 2.019607843137255) internal successors, (103), 51 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:44,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:44,089 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2022-10-17 10:58:44,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2022-10-17 10:58:44,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:58:44,092 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 105 states and 107 transitions. [2022-10-17 10:58:44,092 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-10-17 10:58:44,092 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-10-17 10:58:44,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 107 transitions. [2022-10-17 10:58:44,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:44,093 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 107 transitions. [2022-10-17 10:58:44,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 107 transitions. [2022-10-17 10:58:44,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2022-10-17 10:58:44,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.0192307692307692) internal successors, (106), 103 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:44,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 106 transitions. [2022-10-17 10:58:44,099 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 106 transitions. [2022-10-17 10:58:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-17 10:58:44,100 INFO L428 stractBuchiCegarLoop]: Abstraction has 104 states and 106 transitions. [2022-10-17 10:58:44,100 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-10-17 10:58:44,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 106 transitions. [2022-10-17 10:58:44,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:58:44,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:44,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:44,106 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [51, 49, 1, 1, 1] [2022-10-17 10:58:44,106 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2022-10-17 10:58:44,106 INFO L748 eck$LassoCheckResult]: Stem: 2676#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2677#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2672#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2673#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2678#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2679#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2674#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2675#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2775#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2774#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2773#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2772#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2771#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2770#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2769#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2768#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2767#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2766#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2765#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2764#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2763#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2762#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2761#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2760#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2759#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2758#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2757#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2756#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2755#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2754#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2753#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2752#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2751#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2750#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2749#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2748#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2747#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2746#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2745#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2744#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2743#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2742#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2741#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2740#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2739#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2738#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2737#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2736#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2735#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2734#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2733#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2732#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2731#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2730#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2729#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2728#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2727#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2726#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2725#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2724#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2723#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2722#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2721#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2720#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2719#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2718#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2717#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2716#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2715#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2714#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2713#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2712#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2711#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2710#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2709#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2708#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2707#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2706#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2705#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2704#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2703#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2702#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2701#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2700#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2699#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2698#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2697#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2696#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2695#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2694#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2693#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2692#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2691#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2690#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2689#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2688#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2687#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2686#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2685#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2684#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2683#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2681#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2680#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2682#L12 [2022-10-17 10:58:44,107 INFO L750 eck$LassoCheckResult]: Loop: 2682#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2683#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2681#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2680#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2682#L12 [2022-10-17 10:58:44,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:44,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1994822288, now seen corresponding path program 6 times [2022-10-17 10:58:44,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:44,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044851203] [2022-10-17 10:58:44,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:44,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:44,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:44,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:44,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:44,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 3 times [2022-10-17 10:58:44,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:44,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378965115] [2022-10-17 10:58:44,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:44,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:44,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:44,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:44,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:44,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1522445560, now seen corresponding path program 7 times [2022-10-17 10:58:44,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:44,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071202190] [2022-10-17 10:58:44,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:44,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:44,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:44,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:46,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:47,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:58:47 BoogieIcfgContainer [2022-10-17 10:58:47,098 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:58:47,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:58:47,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:58:47,099 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:58:47,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:58:33" (3/4) ... [2022-10-17 10:58:47,102 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-10-17 10:58:47,162 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:58:47,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:58:47,163 INFO L158 Benchmark]: Toolchain (without parser) took 14507.70ms. Allocated memory was 88.1MB in the beginning and 138.4MB in the end (delta: 50.3MB). Free memory was 48.8MB in the beginning and 46.2MB in the end (delta: 2.6MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2022-10-17 10:58:47,163 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:58:47,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.89ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 48.6MB in the beginning and 92.1MB in the end (delta: -43.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-10-17 10:58:47,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.00ms. Allocated memory is still 115.3MB. Free memory was 91.9MB in the beginning and 90.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:58:47,164 INFO L158 Benchmark]: Boogie Preprocessor took 29.01ms. Allocated memory is still 115.3MB. Free memory was 90.6MB in the beginning and 89.7MB in the end (delta: 882.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:58:47,165 INFO L158 Benchmark]: RCFGBuilder took 216.71ms. Allocated memory is still 115.3MB. Free memory was 89.5MB in the beginning and 81.6MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:58:47,165 INFO L158 Benchmark]: BuchiAutomizer took 13925.15ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 81.4MB in the beginning and 50.4MB in the end (delta: 31.0MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2022-10-17 10:58:47,165 INFO L158 Benchmark]: Witness Printer took 63.13ms. Allocated memory is still 138.4MB. Free memory was 50.4MB in the beginning and 46.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:58:47,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.89ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 48.6MB in the beginning and 92.1MB in the end (delta: -43.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.00ms. Allocated memory is still 115.3MB. Free memory was 91.9MB in the beginning and 90.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.01ms. Allocated memory is still 115.3MB. Free memory was 90.6MB in the beginning and 89.7MB in the end (delta: 882.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.71ms. Allocated memory is still 115.3MB. Free memory was 89.5MB in the beginning and 81.6MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13925.15ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 81.4MB in the beginning and 50.4MB in the end (delta: 31.0MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. * Witness Printer took 63.13ms. Allocated memory is still 138.4MB. Free memory was 50.4MB in the beginning and 46.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (6 trivial, 3 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * j + 103 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 103 and consists of 3 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 103 and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 51 locations. The remainder module has 104 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.7s and 8 iterations. TraceHistogramMax:51. Analysis of lassos took 12.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 9 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 54 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN2 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf106 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 67ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int j; [L8] j = 100 [L9] i = 0 VAL [i=0, j=100] [L11] COND TRUE i < j VAL [i=0, j=100] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=1, j=99] [L11] COND TRUE i < j VAL [i=1, j=99] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=2, j=98] [L11] COND TRUE i < j VAL [i=2, j=98] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=3, j=97] [L11] COND TRUE i < j VAL [i=3, j=97] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=4, j=96] [L11] COND TRUE i < j VAL [i=4, j=96] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=5, j=95] [L11] COND TRUE i < j VAL [i=5, j=95] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=6, j=94] [L11] COND TRUE i < j VAL [i=6, j=94] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=7, j=93] [L11] COND TRUE i < j VAL [i=7, j=93] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=8, j=92] [L11] COND TRUE i < j VAL [i=8, j=92] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=9, j=91] [L11] COND TRUE i < j VAL [i=9, j=91] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=10, j=90] [L11] COND TRUE i < j VAL [i=10, j=90] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=11, j=89] [L11] COND TRUE i < j VAL [i=11, j=89] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=12, j=88] [L11] COND TRUE i < j VAL [i=12, j=88] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=13, j=87] [L11] COND TRUE i < j VAL [i=13, j=87] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=14, j=86] [L11] COND TRUE i < j VAL [i=14, j=86] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=15, j=85] [L11] COND TRUE i < j VAL [i=15, j=85] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=16, j=84] [L11] COND TRUE i < j VAL [i=16, j=84] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=17, j=83] [L11] COND TRUE i < j VAL [i=17, j=83] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=18, j=82] [L11] COND TRUE i < j VAL [i=18, j=82] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=19, j=81] [L11] COND TRUE i < j VAL [i=19, j=81] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=20, j=80] [L11] COND TRUE i < j VAL [i=20, j=80] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=21, j=79] [L11] COND TRUE i < j VAL [i=21, j=79] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=22, j=78] [L11] COND TRUE i < j VAL [i=22, j=78] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=23, j=77] [L11] COND TRUE i < j VAL [i=23, j=77] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=24, j=76] [L11] COND TRUE i < j VAL [i=24, j=76] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=25, j=75] [L11] COND TRUE i < j VAL [i=25, j=75] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=26, j=74] [L11] COND TRUE i < j VAL [i=26, j=74] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=27, j=73] [L11] COND TRUE i < j VAL [i=27, j=73] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=28, j=72] [L11] COND TRUE i < j VAL [i=28, j=72] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=29, j=71] [L11] COND TRUE i < j VAL [i=29, j=71] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=30, j=70] [L11] COND TRUE i < j VAL [i=30, j=70] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=31, j=69] [L11] COND TRUE i < j VAL [i=31, j=69] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=32, j=68] [L11] COND TRUE i < j VAL [i=32, j=68] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=33, j=67] [L11] COND TRUE i < j VAL [i=33, j=67] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=34, j=66] [L11] COND TRUE i < j VAL [i=34, j=66] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=35, j=65] [L11] COND TRUE i < j VAL [i=35, j=65] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=36, j=64] [L11] COND TRUE i < j VAL [i=36, j=64] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=37, j=63] [L11] COND TRUE i < j VAL [i=37, j=63] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=38, j=62] [L11] COND TRUE i < j VAL [i=38, j=62] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=39, j=61] [L11] COND TRUE i < j VAL [i=39, j=61] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=40, j=60] [L11] COND TRUE i < j VAL [i=40, j=60] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=41, j=59] [L11] COND TRUE i < j VAL [i=41, j=59] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=42, j=58] [L11] COND TRUE i < j VAL [i=42, j=58] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=43, j=57] [L11] COND TRUE i < j VAL [i=43, j=57] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=44, j=56] [L11] COND TRUE i < j VAL [i=44, j=56] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=45, j=55] [L11] COND TRUE i < j VAL [i=45, j=55] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=46, j=54] [L11] COND TRUE i < j VAL [i=46, j=54] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=47, j=53] [L11] COND TRUE i < j VAL [i=47, j=53] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=49, j=51] [L11] COND TRUE i < j VAL [i=49, j=51] [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] Loop: [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] j = 100 [L9] i = 0 VAL [i=0, j=100] [L11] COND TRUE i < j VAL [i=0, j=100] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=1, j=99] [L11] COND TRUE i < j VAL [i=1, j=99] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=2, j=98] [L11] COND TRUE i < j VAL [i=2, j=98] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=3, j=97] [L11] COND TRUE i < j VAL [i=3, j=97] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=4, j=96] [L11] COND TRUE i < j VAL [i=4, j=96] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=5, j=95] [L11] COND TRUE i < j VAL [i=5, j=95] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=6, j=94] [L11] COND TRUE i < j VAL [i=6, j=94] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=7, j=93] [L11] COND TRUE i < j VAL [i=7, j=93] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=8, j=92] [L11] COND TRUE i < j VAL [i=8, j=92] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=9, j=91] [L11] COND TRUE i < j VAL [i=9, j=91] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=10, j=90] [L11] COND TRUE i < j VAL [i=10, j=90] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=11, j=89] [L11] COND TRUE i < j VAL [i=11, j=89] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=12, j=88] [L11] COND TRUE i < j VAL [i=12, j=88] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=13, j=87] [L11] COND TRUE i < j VAL [i=13, j=87] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=14, j=86] [L11] COND TRUE i < j VAL [i=14, j=86] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=15, j=85] [L11] COND TRUE i < j VAL [i=15, j=85] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=16, j=84] [L11] COND TRUE i < j VAL [i=16, j=84] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=17, j=83] [L11] COND TRUE i < j VAL [i=17, j=83] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=18, j=82] [L11] COND TRUE i < j VAL [i=18, j=82] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=19, j=81] [L11] COND TRUE i < j VAL [i=19, j=81] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=20, j=80] [L11] COND TRUE i < j VAL [i=20, j=80] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=21, j=79] [L11] COND TRUE i < j VAL [i=21, j=79] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=22, j=78] [L11] COND TRUE i < j VAL [i=22, j=78] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=23, j=77] [L11] COND TRUE i < j VAL [i=23, j=77] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=24, j=76] [L11] COND TRUE i < j VAL [i=24, j=76] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=25, j=75] [L11] COND TRUE i < j VAL [i=25, j=75] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=26, j=74] [L11] COND TRUE i < j VAL [i=26, j=74] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=27, j=73] [L11] COND TRUE i < j VAL [i=27, j=73] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=28, j=72] [L11] COND TRUE i < j VAL [i=28, j=72] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=29, j=71] [L11] COND TRUE i < j VAL [i=29, j=71] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=30, j=70] [L11] COND TRUE i < j VAL [i=30, j=70] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=31, j=69] [L11] COND TRUE i < j VAL [i=31, j=69] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=32, j=68] [L11] COND TRUE i < j VAL [i=32, j=68] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=33, j=67] [L11] COND TRUE i < j VAL [i=33, j=67] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=34, j=66] [L11] COND TRUE i < j VAL [i=34, j=66] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=35, j=65] [L11] COND TRUE i < j VAL [i=35, j=65] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=36, j=64] [L11] COND TRUE i < j VAL [i=36, j=64] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=37, j=63] [L11] COND TRUE i < j VAL [i=37, j=63] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=38, j=62] [L11] COND TRUE i < j VAL [i=38, j=62] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=39, j=61] [L11] COND TRUE i < j VAL [i=39, j=61] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=40, j=60] [L11] COND TRUE i < j VAL [i=40, j=60] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=41, j=59] [L11] COND TRUE i < j VAL [i=41, j=59] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=42, j=58] [L11] COND TRUE i < j VAL [i=42, j=58] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=43, j=57] [L11] COND TRUE i < j VAL [i=43, j=57] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=44, j=56] [L11] COND TRUE i < j VAL [i=44, j=56] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=45, j=55] [L11] COND TRUE i < j VAL [i=45, j=55] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=46, j=54] [L11] COND TRUE i < j VAL [i=46, j=54] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=47, j=53] [L11] COND TRUE i < j VAL [i=47, j=53] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=49, j=51] [L11] COND TRUE i < j VAL [i=49, j=51] [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] Loop: [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 10:58:47,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:47,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2022-10-17 10:58:47,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-10-17 10:58:47,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-10-17 10:58:48,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-10-17 10:58:48,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4e66ee-2604-40f9-8b01-f1ea0355bcff/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)