./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b4e7977192ae56aeb09dc050b873d7b40c1e47d710f31b358c00a46d3bffe743 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:40:48,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:40:48,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:40:48,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:40:48,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:40:48,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:40:48,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:40:48,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:40:48,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:40:48,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:40:48,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:40:48,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:40:48,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:40:48,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:40:48,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:40:48,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:40:48,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:40:48,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:40:48,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:40:48,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:40:48,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:40:48,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:40:48,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:40:48,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:40:48,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:40:48,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:40:48,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:40:48,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:40:48,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:40:48,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:40:48,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:40:48,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:40:48,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:40:48,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:40:48,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:40:48,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:40:48,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:40:48,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:40:48,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:40:48,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:40:48,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:40:48,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:40:48,967 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:40:48,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:40:48,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:40:48,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:40:48,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:40:48,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:40:48,971 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:40:48,971 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:40:48,971 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:40:48,972 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:40:48,973 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:40:48,973 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:40:48,973 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:40:48,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:40:48,974 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:40:48,974 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:40:48,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:40:48,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:40:48,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:40:48,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:40:48,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:40:48,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:40:48,976 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:40:48,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:40:48,976 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:40:48,976 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:40:48,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:40:48,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:40:48,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:40:48,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:40:48,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:40:48,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:40:48,981 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:40:48,981 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_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4e7977192ae56aeb09dc050b873d7b40c1e47d710f31b358c00a46d3bffe743 [2021-10-21 19:40:49,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:40:49,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:40:49,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:40:49,324 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:40:49,325 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:40:49,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2021-10-21 19:40:49,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/data/290f1dc13/f6f4c16e4d314585847697192745c00b/FLAGc1bc67bf7 [2021-10-21 19:40:49,923 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:40:49,924 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2021-10-21 19:40:49,943 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/data/290f1dc13/f6f4c16e4d314585847697192745c00b/FLAGc1bc67bf7 [2021-10-21 19:40:50,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/data/290f1dc13/f6f4c16e4d314585847697192745c00b [2021-10-21 19:40:50,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:40:50,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:40:50,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:40:50,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:40:50,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:40:50,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519a5098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50, skipping insertion in model container [2021-10-21 19:40:50,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:40:50,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:40:50,569 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c[15112,15125] [2021-10-21 19:40:50,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:40:50,586 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:40:50,702 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c[15112,15125] [2021-10-21 19:40:50,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:40:50,731 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:40:50,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50 WrapperNode [2021-10-21 19:40:50,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:40:50,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:40:50,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:40:50,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:40:50,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:40:50,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:40:50,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:40:50,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:40:50,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:40:50,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:40:50,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:40:50,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:40:50,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (1/1) ... [2021-10-21 19:40:50,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:40:50,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:40:50,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:40:50,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:40:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:40:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:40:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:40:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:40:51,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:40:51,644 INFO L299 CfgBuilder]: Removed 25 assume(true) statements. [2021-10-21 19:40:51,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:40:51 BoogieIcfgContainer [2021-10-21 19:40:51,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:40:51,648 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:40:51,648 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:40:51,651 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:40:51,652 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:40:51,652 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:40:50" (1/3) ... [2021-10-21 19:40:51,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39e27956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:40:51, skipping insertion in model container [2021-10-21 19:40:51,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:40:51,654 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:50" (2/3) ... [2021-10-21 19:40:51,654 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39e27956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:40:51, skipping insertion in model container [2021-10-21 19:40:51,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:40:51,655 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:40:51" (3/3) ... [2021-10-21 19:40:51,656 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2021-10-21 19:40:51,696 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:40:51,697 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:40:51,697 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:40:51,697 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:40:51,697 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:40:51,697 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:40:51,697 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:40:51,697 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:40:51,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 108 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:51,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2021-10-21 19:40:51,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:40:51,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:40:51,753 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:51,753 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:51,753 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:40:51,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 108 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:51,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2021-10-21 19:40:51,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:40:51,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:40:51,765 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:51,765 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:51,786 INFO L791 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0; 29#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 60#L230true assume !(0 == ~r1~0);init_~tmp~0 := 0; 104#L230-1true init_#res := init_~tmp~0; 68#L391true main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 31#L22true assume !(0 == assume_abort_if_not_~cond); 76#L21true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 27#L469-2true [2021-10-21 19:40:51,799 INFO L793 eck$LassoCheckResult]: Loop: 27#L469-2true assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 16#L78true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 72#L82true assume !(node1_~m1~0 != ~nomsg~0); 10#L82-1true ~mode1~0 := 0; 33#L78-2true havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 90#L106true assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 85#L109true assume !(node2_~m2~0 != ~nomsg~0); 94#L109-1true ~mode2~0 := 0; 37#L106-2true havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 32#L131true assume !(0 != ~mode3~0 % 256); 7#L144true assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 59#L144-2true ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 74#L131-2true havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 102#L156true assume !(0 != ~mode4~0 % 256); 44#L169true assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite10 := ~send4~0; 88#L169-2true ~p4_new~0 := (if node4_#t~ite10 % 256 <= 127 then node4_#t~ite10 % 256 else node4_#t~ite10 % 256 - 256);havoc node4_#t~ite10;~mode4~0 := 1; 28#L156-2true havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 73#L181true assume !(0 != ~mode5~0 % 256); 75#L194true assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 101#L194-2true ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 35#L181-2true havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 26#L206true assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 84#L209true assume !(node6_~m6~0 != ~nomsg~0); 108#L209-1true ~mode6~0 := 0; 56#L206-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 53#L399true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1 := 0; 97#L399-1true check_#res := check_~tmp~1; 5#L419true main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 30#L502true assume !(0 == assert_~arg % 256); 98#L497true main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 27#L469-2true [2021-10-21 19:40:51,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:51,808 INFO L82 PathProgramCache]: Analyzing trace with hash 2030119858, now seen corresponding path program 1 times [2021-10-21 19:40:51,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:51,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872630778] [2021-10-21 19:40:51,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:51,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:40:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:40:52,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:40:52,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872630778] [2021-10-21 19:40:52,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872630778] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:40:52,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:40:52,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:40:52,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448731522] [2021-10-21 19:40:52,065 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:40:52,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:52,066 INFO L82 PathProgramCache]: Analyzing trace with hash 810754081, now seen corresponding path program 1 times [2021-10-21 19:40:52,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:52,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867572071] [2021-10-21 19:40:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:52,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:40:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:40:52,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:40:52,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867572071] [2021-10-21 19:40:52,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867572071] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:40:52,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:40:52,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:40:52,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186052852] [2021-10-21 19:40:52,344 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:40:52,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:40:52,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:40:52,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:40:52,366 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 108 states have internal predecessors, (187), 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 5 states, 5 states have (on average 1.4) 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) [2021-10-21 19:40:52,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:40:52,514 INFO L93 Difference]: Finished difference Result 112 states and 186 transitions. [2021-10-21 19:40:52,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:40:52,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 186 transitions. [2021-10-21 19:40:52,532 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2021-10-21 19:40:52,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 104 states and 139 transitions. [2021-10-21 19:40:52,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-10-21 19:40:52,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2021-10-21 19:40:52,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 139 transitions. [2021-10-21 19:40:52,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:40:52,544 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 139 transitions. [2021-10-21 19:40:52,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 139 transitions. [2021-10-21 19:40:52,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-10-21 19:40:52,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.3365384615384615) internal successors, (139), 103 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:52,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2021-10-21 19:40:52,586 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 139 transitions. [2021-10-21 19:40:52,587 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 139 transitions. [2021-10-21 19:40:52,587 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:40:52,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 139 transitions. [2021-10-21 19:40:52,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2021-10-21 19:40:52,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:40:52,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:40:52,605 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:52,605 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:52,608 INFO L791 eck$LassoCheckResult]: Stem: 341#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0; 279#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 280#L230 assume 0 == ~r1~0; 323#L231 assume ~id1~0 >= 0; 327#L232 assume 0 == ~st1~0; 312#L233 assume ~send1~0 == ~id1~0; 313#L234 assume 0 == ~mode1~0 % 256; 322#L235 assume ~id2~0 >= 0; 305#L236 assume 0 == ~st2~0; 306#L237 assume ~send2~0 == ~id2~0; 267#L238 assume 0 == ~mode2~0 % 256; 268#L239 assume ~id3~0 >= 0; 265#L240 assume 0 == ~st3~0; 266#L241 assume ~send3~0 == ~id3~0; 270#L242 assume 0 == ~mode3~0 % 256; 326#L243 assume ~id4~0 >= 0; 247#L244 assume 0 == ~st4~0; 248#L245 assume ~send4~0 == ~id4~0; 269#L246 assume 0 == ~mode4~0 % 256; 311#L247 assume ~id5~0 >= 0; 337#L248 assume 0 == ~st5~0; 243#L249 assume ~send5~0 == ~id5~0; 244#L250 assume 0 == ~mode5~0 % 256; 328#L251 assume ~id6~0 >= 0; 292#L252 assume 0 == ~st6~0; 293#L253 assume ~send6~0 == ~id6~0; 300#L254 assume 0 == ~mode6~0 % 256; 257#L255 assume ~id1~0 != ~id2~0; 258#L256 assume ~id1~0 != ~id3~0; 294#L257 assume ~id1~0 != ~id4~0; 271#L258 assume ~id1~0 != ~id5~0; 272#L259 assume ~id1~0 != ~id6~0; 314#L260 assume ~id2~0 != ~id3~0; 315#L261 assume ~id2~0 != ~id4~0; 301#L262 assume ~id2~0 != ~id5~0; 302#L263 assume ~id2~0 != ~id6~0; 307#L264 assume ~id3~0 != ~id4~0; 308#L265 assume ~id3~0 != ~id5~0; 253#L266 assume ~id3~0 != ~id6~0; 254#L267 assume ~id4~0 != ~id5~0; 259#L268 assume ~id4~0 != ~id6~0; 260#L269 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 309#L230-1 init_#res := init_~tmp~0; 331#L391 main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 282#L22 assume !(0 == assume_abort_if_not_~cond); 283#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 276#L469-2 [2021-10-21 19:40:52,608 INFO L793 eck$LassoCheckResult]: Loop: 276#L469-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 261#L78 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 262#L82 assume !(node1_~m1~0 != ~nomsg~0); 240#L82-1 ~mode1~0 := 0; 252#L78-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 286#L106 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 339#L109 assume !(node2_~m2~0 != ~nomsg~0); 320#L109-1 ~mode2~0 := 0; 288#L106-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 284#L131 assume !(0 != ~mode3~0 % 256); 245#L144 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 246#L144-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 291#L131-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 333#L156 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 324#L159 assume !(node4_~m4~0 != ~nomsg~0); 296#L159-1 ~mode4~0 := 0; 277#L156-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 278#L181 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 329#L184 assume !(node5_~m5~0 != ~nomsg~0); 256#L184-1 ~mode5~0 := 0; 289#L181-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 273#L206 assume !(0 != ~mode6~0 % 256); 274#L219 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 342#L219-2 ~p6_new~0 := (if node6_#t~ite12 % 256 <= 127 then node6_#t~ite12 % 256 else node6_#t~ite12 % 256 - 256);havoc node6_#t~ite12;~mode6~0 := 1; 321#L206-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 316#L399 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1 := 0; 298#L399-1 check_#res := check_~tmp~1; 241#L419 main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 242#L502 assume !(0 == assert_~arg % 256); 281#L497 main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 276#L469-2 [2021-10-21 19:40:52,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:52,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1716035805, now seen corresponding path program 1 times [2021-10-21 19:40:52,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:52,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790217108] [2021-10-21 19:40:52,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:52,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:52,675 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:40:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:52,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:40:52,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:52,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1009736277, now seen corresponding path program 1 times [2021-10-21 19:40:52,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:52,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858606251] [2021-10-21 19:40:52,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:52,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:40:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:40:52,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:40:52,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858606251] [2021-10-21 19:40:52,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858606251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:40:52,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:40:52,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:40:52,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731486499] [2021-10-21 19:40:52,932 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:40:52,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:40:52,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:40:52,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:40:52,957 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. cyclomatic complexity: 36 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2021-10-21 19:40:53,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:40:53,010 INFO L93 Difference]: Finished difference Result 107 states and 141 transitions. [2021-10-21 19:40:53,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:40:53,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 141 transitions. [2021-10-21 19:40:53,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2021-10-21 19:40:53,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 104 states and 136 transitions. [2021-10-21 19:40:53,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-10-21 19:40:53,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2021-10-21 19:40:53,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 136 transitions. [2021-10-21 19:40:53,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:40:53,028 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-10-21 19:40:53,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 136 transitions. [2021-10-21 19:40:53,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-10-21 19:40:53,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 103 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:53,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2021-10-21 19:40:53,047 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-10-21 19:40:53,047 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-10-21 19:40:53,048 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:40:53,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 136 transitions. [2021-10-21 19:40:53,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2021-10-21 19:40:53,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:40:53,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:40:53,055 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:53,056 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:53,056 INFO L791 eck$LassoCheckResult]: Stem: 564#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0; 502#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 503#L230 assume 0 == ~r1~0; 545#L231 assume ~id1~0 >= 0; 549#L232 assume 0 == ~st1~0; 534#L233 assume ~send1~0 == ~id1~0; 535#L234 assume 0 == ~mode1~0 % 256; 544#L235 assume ~id2~0 >= 0; 527#L236 assume 0 == ~st2~0; 528#L237 assume ~send2~0 == ~id2~0; 490#L238 assume 0 == ~mode2~0 % 256; 491#L239 assume ~id3~0 >= 0; 488#L240 assume 0 == ~st3~0; 489#L241 assume ~send3~0 == ~id3~0; 493#L242 assume 0 == ~mode3~0 % 256; 548#L243 assume ~id4~0 >= 0; 470#L244 assume 0 == ~st4~0; 471#L245 assume ~send4~0 == ~id4~0; 492#L246 assume 0 == ~mode4~0 % 256; 533#L247 assume ~id5~0 >= 0; 559#L248 assume 0 == ~st5~0; 466#L249 assume ~send5~0 == ~id5~0; 467#L250 assume 0 == ~mode5~0 % 256; 550#L251 assume ~id6~0 >= 0; 515#L252 assume 0 == ~st6~0; 516#L253 assume ~send6~0 == ~id6~0; 522#L254 assume 0 == ~mode6~0 % 256; 480#L255 assume ~id1~0 != ~id2~0; 481#L256 assume ~id1~0 != ~id3~0; 517#L257 assume ~id1~0 != ~id4~0; 494#L258 assume ~id1~0 != ~id5~0; 495#L259 assume ~id1~0 != ~id6~0; 536#L260 assume ~id2~0 != ~id3~0; 537#L261 assume ~id2~0 != ~id4~0; 523#L262 assume ~id2~0 != ~id5~0; 524#L263 assume ~id2~0 != ~id6~0; 529#L264 assume ~id3~0 != ~id4~0; 530#L265 assume ~id3~0 != ~id5~0; 476#L266 assume ~id3~0 != ~id6~0; 477#L267 assume ~id4~0 != ~id5~0; 482#L268 assume ~id4~0 != ~id6~0; 483#L269 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 531#L230-1 init_#res := init_~tmp~0; 553#L391 main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 505#L22 assume !(0 == assume_abort_if_not_~cond); 506#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 499#L469-2 [2021-10-21 19:40:53,056 INFO L793 eck$LassoCheckResult]: Loop: 499#L469-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 484#L78 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 485#L82 assume !(node1_~m1~0 != ~nomsg~0); 463#L82-1 ~mode1~0 := 0; 475#L78-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 509#L106 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 562#L109 assume !(node2_~m2~0 != ~nomsg~0); 542#L109-1 ~mode2~0 := 0; 511#L106-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 507#L131 assume !(0 != ~mode3~0 % 256); 468#L144 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 469#L144-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 514#L131-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 555#L156 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 546#L159 assume !(node4_~m4~0 != ~nomsg~0); 519#L159-1 ~mode4~0 := 0; 500#L156-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 501#L181 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 551#L184 assume !(node5_~m5~0 != ~nomsg~0); 479#L184-1 ~mode5~0 := 0; 512#L181-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 496#L206 assume !(0 != ~mode6~0 % 256); 497#L219 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 565#L219-2 ~p6_new~0 := (if node6_#t~ite12 % 256 <= 127 then node6_#t~ite12 % 256 else node6_#t~ite12 % 256 - 256);havoc node6_#t~ite12;~mode6~0 := 1; 543#L206-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 538#L399 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1; 539#L400 assume ~r1~0 >= 6; 521#L404 assume ~r1~0 < 6;check_~tmp~1 := 1; 561#L399-1 check_#res := check_~tmp~1; 464#L419 main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 465#L502 assume !(0 == assert_~arg % 256); 504#L497 main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 499#L469-2 [2021-10-21 19:40:53,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:53,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1716035805, now seen corresponding path program 2 times [2021-10-21 19:40:53,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:53,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249695914] [2021-10-21 19:40:53,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:53,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:53,089 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:40:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:53,136 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:40:53,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:53,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1109769157, now seen corresponding path program 1 times [2021-10-21 19:40:53,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:53,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898743782] [2021-10-21 19:40:53,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:53,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:40:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:40:53,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:40:53,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898743782] [2021-10-21 19:40:53,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898743782] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:40:53,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:40:53,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:40:53,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725442955] [2021-10-21 19:40:53,175 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:40:53,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:40:53,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:40:53,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:40:53,176 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:53,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:40:53,205 INFO L93 Difference]: Finished difference Result 156 states and 215 transitions. [2021-10-21 19:40:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:40:53,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 215 transitions. [2021-10-21 19:40:53,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 110 [2021-10-21 19:40:53,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 156 states and 215 transitions. [2021-10-21 19:40:53,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2021-10-21 19:40:53,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 156 [2021-10-21 19:40:53,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 215 transitions. [2021-10-21 19:40:53,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:40:53,213 INFO L681 BuchiCegarLoop]: Abstraction has 156 states and 215 transitions. [2021-10-21 19:40:53,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 215 transitions. [2021-10-21 19:40:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-10-21 19:40:53,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 156 states have (on average 1.3782051282051282) internal successors, (215), 155 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 215 transitions. [2021-10-21 19:40:53,222 INFO L704 BuchiCegarLoop]: Abstraction has 156 states and 215 transitions. [2021-10-21 19:40:53,223 INFO L587 BuchiCegarLoop]: Abstraction has 156 states and 215 transitions. [2021-10-21 19:40:53,223 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:40:53,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 156 states and 215 transitions. [2021-10-21 19:40:53,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 110 [2021-10-21 19:40:53,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:40:53,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:40:53,226 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:53,227 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:53,227 INFO L791 eck$LassoCheckResult]: Stem: 833#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0; 768#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 769#L230 assume 0 == ~r1~0; 812#L231 assume ~id1~0 >= 0; 817#L232 assume 0 == ~st1~0; 801#L233 assume ~send1~0 == ~id1~0; 802#L234 assume 0 == ~mode1~0 % 256; 811#L235 assume ~id2~0 >= 0; 794#L236 assume 0 == ~st2~0; 795#L237 assume ~send2~0 == ~id2~0; 756#L238 assume 0 == ~mode2~0 % 256; 757#L239 assume ~id3~0 >= 0; 754#L240 assume 0 == ~st3~0; 755#L241 assume ~send3~0 == ~id3~0; 759#L242 assume 0 == ~mode3~0 % 256; 816#L243 assume ~id4~0 >= 0; 736#L244 assume 0 == ~st4~0; 737#L245 assume ~send4~0 == ~id4~0; 758#L246 assume 0 == ~mode4~0 % 256; 800#L247 assume ~id5~0 >= 0; 827#L248 assume 0 == ~st5~0; 732#L249 assume ~send5~0 == ~id5~0; 733#L250 assume 0 == ~mode5~0 % 256; 818#L251 assume ~id6~0 >= 0; 782#L252 assume 0 == ~st6~0; 783#L253 assume ~send6~0 == ~id6~0; 789#L254 assume 0 == ~mode6~0 % 256; 746#L255 assume ~id1~0 != ~id2~0; 747#L256 assume ~id1~0 != ~id3~0; 784#L257 assume ~id1~0 != ~id4~0; 760#L258 assume ~id1~0 != ~id5~0; 761#L259 assume ~id1~0 != ~id6~0; 803#L260 assume ~id2~0 != ~id3~0; 804#L261 assume ~id2~0 != ~id4~0; 790#L262 assume ~id2~0 != ~id5~0; 791#L263 assume ~id2~0 != ~id6~0; 796#L264 assume ~id3~0 != ~id4~0; 797#L265 assume ~id3~0 != ~id5~0; 742#L266 assume ~id3~0 != ~id6~0; 743#L267 assume ~id4~0 != ~id5~0; 748#L268 assume ~id4~0 != ~id6~0; 749#L269 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 798#L230-1 init_#res := init_~tmp~0; 821#L391 main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 771#L22 assume !(0 == assume_abort_if_not_~cond); 772#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 765#L469-2 [2021-10-21 19:40:53,228 INFO L793 eck$LassoCheckResult]: Loop: 765#L469-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 750#L78 assume !(0 != ~mode1~0 % 256); 752#L94 assume !(~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0);node1_#t~ite7 := ~p1_new~0; 832#L94-2 ~p1_new~0 := (if node1_#t~ite7 % 256 <= 127 then node1_#t~ite7 % 256 else node1_#t~ite7 % 256 - 256);havoc node1_#t~ite7;~mode1~0 := 1; 741#L78-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 877#L106 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 874#L109 assume !(node2_~m2~0 != ~nomsg~0); 872#L109-1 ~mode2~0 := 0; 870#L106-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 869#L131 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 867#L134 assume !(node3_~m3~0 != ~nomsg~0); 864#L134-1 ~mode3~0 := 0; 862#L131-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 861#L156 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 859#L159 assume !(node4_~m4~0 != ~nomsg~0); 856#L159-1 ~mode4~0 := 0; 854#L156-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 853#L181 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 851#L184 assume !(node5_~m5~0 != ~nomsg~0); 848#L184-1 ~mode5~0 := 0; 846#L181-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 845#L206 assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 843#L209 assume !(node6_~m6~0 != ~nomsg~0); 840#L209-1 ~mode6~0 := 0; 838#L206-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 837#L399 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1; 836#L400 assume !(~r1~0 >= 6); 787#L403 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0; 788#L404 assume ~r1~0 < 6;check_~tmp~1 := 1; 834#L399-1 check_#res := check_~tmp~1; 730#L419 main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 731#L502 assume !(0 == assert_~arg % 256); 770#L497 main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 765#L469-2 [2021-10-21 19:40:53,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:53,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1716035805, now seen corresponding path program 3 times [2021-10-21 19:40:53,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:53,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153143215] [2021-10-21 19:40:53,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:53,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:53,259 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:40:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:53,311 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:40:53,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:53,312 INFO L82 PathProgramCache]: Analyzing trace with hash 280253189, now seen corresponding path program 1 times [2021-10-21 19:40:53,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:53,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567509023] [2021-10-21 19:40:53,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:53,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:53,346 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:40:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:53,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:40:53,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:53,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1310924765, now seen corresponding path program 1 times [2021-10-21 19:40:53,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:53,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961977335] [2021-10-21 19:40:53,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:53,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:40:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:40:53,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:40:53,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961977335] [2021-10-21 19:40:53,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961977335] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:40:53,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:40:53,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:40:53,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394242215] [2021-10-21 19:40:54,920 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:40:54,921 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:40:54,921 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:40:54,921 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:40:54,923 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:40:54,923 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:40:54,923 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:40:54,923 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:40:54,929 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.6.1.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2021-10-21 19:40:54,929 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:40:54,930 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:40:54,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:54,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:54,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:54,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:54,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:54,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:54,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:54,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:54,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:55,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:57,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:40:57,710 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:40:57,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:40:57,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:40:57,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:40:57,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:40:57,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:40:57,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:40:57,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:40:57,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:40:57,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:40:57,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:40:57,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:40:57,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:40:57,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:40:57,936 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:40:57,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:40:57,940 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:40:57,940 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:40:57,940 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:40:57,940 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:40:57,940 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:40:57,940 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:40:57,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:40:57,941 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:40:57,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.6.1.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2021-10-21 19:40:57,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:40:57,941 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:40:57,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:57,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:57,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:57,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:57,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:57,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:57,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:57,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:57,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:40:58,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:00,611 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:41:00,621 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:41:00,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:00,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:00,627 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:00,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:41:00,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:00,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:00,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:00,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:00,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:00,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:00,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:00,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:00,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:00,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-21 19:41:00,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:00,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:00,680 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:00,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:41:00,685 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:00,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:00,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:00,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:00,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:00,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:00,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:00,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:00,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:00,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:00,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:00,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:00,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:00,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:00,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:41:00,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:00,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:00,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:00,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:00,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:00,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:00,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:00,774 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:00,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:00,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:00,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:00,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:00,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:41:00,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:00,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:00,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:00,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:00,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:00,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:00,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:00,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:00,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:00,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:00,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:00,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:00,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:00,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:41:00,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:00,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:00,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:00,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:00,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:00,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:00,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:00,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:00,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:00,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:00,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:00,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:00,877 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:00,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:41:00,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:00,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:00,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:00,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:00,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:00,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:00,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:00,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:00,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:00,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:00,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:00,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:00,913 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:00,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:41:00,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:00,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:00,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:00,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:00,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:00,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:00,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:00,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:00,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:00,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:00,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:00,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:00,957 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:00,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:41:00,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:00,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:00,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:00,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:00,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:00,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:00,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:00,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:00,968 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:00,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-10-21 19:41:00,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:00,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:00,992 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:00,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:41:00,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:01,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:01,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:01,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:01,003 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2021-10-21 19:41:01,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:01,062 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:41:01,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:01,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:01,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:01,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:01,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:01,164 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:01,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:01,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:01,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:01,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:01,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:01,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:01,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:01,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:01,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:41:01,200 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:01,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:01,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:01,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:01,245 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:01,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:01,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:01,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:01,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:01,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:01,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:01,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:01,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:01,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:41:01,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:01,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:01,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:01,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:01,310 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:01,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:41:01,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:01,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:01,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:01,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:01,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:01,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:01,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:01,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:01,343 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:41:01,360 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:41:01,360 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:41:01,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:01,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:01,387 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:01,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:41:01,451 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:41:01,452 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:41:01,452 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:41:01,452 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 23 Supporting invariants [] [2021-10-21 19:41:01,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:01,537 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:41:01,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:01,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:41:01,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:01,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:41:01,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:02,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:02,094 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:41:02,095 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 156 states and 215 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:02,164 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 156 states and 215 transitions. cyclomatic complexity: 60. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 265 states and 384 transitions. Complement of second has 4 states. [2021-10-21 19:41:02,165 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 [2021-10-21 19:41:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:02,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2021-10-21 19:41:02,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 136 transitions. Stem has 46 letters. Loop has 33 letters. [2021-10-21 19:41:02,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:41:02,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 136 transitions. Stem has 79 letters. Loop has 33 letters. [2021-10-21 19:41:02,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:41:02,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 136 transitions. Stem has 46 letters. Loop has 66 letters. [2021-10-21 19:41:02,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:41:02,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 384 transitions. [2021-10-21 19:41:02,182 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:41:02,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 0 states and 0 transitions. [2021-10-21 19:41:02,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:41:02,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:41:02,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:41:02,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:41:02,183 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:41:02,183 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:41:02,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:02,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:41:02,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:41:02,186 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:02,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:02,187 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-21 19:41:02,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:41:02,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-21 19:41:02,187 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:41:02,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:41:02,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:41:02,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:41:02,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:41:02,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:41:02,188 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:41:02,188 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:41:02,188 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:41:02,188 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:41:02,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:41:02,189 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:41:02,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:41:02,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:41:02 BoogieIcfgContainer [2021-10-21 19:41:02,195 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:41:02,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:41:02,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:41:02,195 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:41:02,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:40:51" (3/4) ... [2021-10-21 19:41:02,199 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:41:02,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:41:02,202 INFO L168 Benchmark]: Toolchain (without parser) took 11954.72 ms. Allocated memory was 102.8 MB in the beginning and 153.1 MB in the end (delta: 50.3 MB). Free memory was 66.5 MB in the beginning and 79.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 37.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:41:02,203 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 102.8 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:41:02,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 482.33 ms. Allocated memory is still 102.8 MB. Free memory was 66.3 MB in the beginning and 74.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:41:02,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 102.8 MB. Free memory was 74.0 MB in the beginning and 71.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:41:02,205 INFO L168 Benchmark]: Boogie Preprocessor took 71.84 ms. Allocated memory is still 102.8 MB. Free memory was 71.4 MB in the beginning and 69.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:41:02,208 INFO L168 Benchmark]: RCFGBuilder took 755.85 ms. Allocated memory is still 102.8 MB. Free memory was 69.3 MB in the beginning and 47.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:41:02,211 INFO L168 Benchmark]: BuchiAutomizer took 10547.03 ms. Allocated memory was 102.8 MB in the beginning and 153.1 MB in the end (delta: 50.3 MB). Free memory was 47.8 MB in the beginning and 79.0 MB in the end (delta: -31.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:41:02,211 INFO L168 Benchmark]: Witness Printer took 3.75 ms. Allocated memory is still 153.1 MB. Free memory is still 79.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:41:02,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 102.8 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 482.33 ms. Allocated memory is still 102.8 MB. Free memory was 66.3 MB in the beginning and 74.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 102.8 MB. Free memory was 74.0 MB in the beginning and 71.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.84 ms. Allocated memory is still 102.8 MB. Free memory was 71.4 MB in the beginning and 69.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 755.85 ms. Allocated memory is still 102.8 MB. Free memory was 69.3 MB in the beginning and 47.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10547.03 ms. Allocated memory was 102.8 MB in the beginning and 153.1 MB in the end (delta: 50.3 MB). Free memory was 47.8 MB in the beginning and 79.0 MB in the end (delta: -31.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.75 ms. Allocated memory is still 153.1 MB. Free memory is still 79.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 23 + -2 * i2 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 9.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 54.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 156 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 660 SDtfs, 217 SDslu, 1122 SDs, 0 SdLazy, 36 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital189 mio100 ax100 hnf100 lsp65 ukn80 mio100 lsp100 div130 bol100 ite100 ukn100 eq193 hnf77 smp100 dnf1033 smp49 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 130ms VariablesStem: 0 VariablesLoop: 33 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 0 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:41:02,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:02,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0b6eb8-6337-40e2-9120-741cc5df072d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...