./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3 --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 e507d3bdc70196e681a85ce01788ab9eaa40a0c0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:10:13,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:10:13,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:10:14,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:10:14,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:10:14,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:10:14,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:10:14,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:10:14,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:10:14,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:10:14,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:10:14,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:10:14,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:10:14,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:10:14,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:10:14,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:10:14,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:10:14,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:10:14,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:10:14,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:10:14,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:10:14,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:10:14,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:10:14,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:10:14,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:10:14,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:10:14,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:10:14,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:10:14,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:10:14,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:10:14,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:10:14,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:10:14,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:10:14,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:10:14,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:10:14,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:10:14,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:10:14,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:10:14,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:10:14,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:10:14,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:10:14,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 20:10:14,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:10:14,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:10:14,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:10:14,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:10:14,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:10:14,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:10:14,164 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:10:14,164 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:10:14,164 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:10:14,164 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:10:14,164 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:10:14,165 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:10:14,165 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:10:14,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:10:14,165 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:10:14,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:10:14,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:10:14,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:10:14,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:10:14,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:10:14,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:10:14,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:10:14,167 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:10:14,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:10:14,167 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:10:14,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:10:14,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:10:14,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:10:14,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:10:14,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:10:14,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:10:14,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:10:14,169 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:10:14,170 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_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e507d3bdc70196e681a85ce01788ab9eaa40a0c0 [2021-10-15 20:10:14,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:10:14,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:10:14,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:10:14,528 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:10:14,529 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:10:14,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2021-10-15 20:10:14,602 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/data/a6c38048e/3b917b84f6fc48debd9a5853d2541ddf/FLAGa29180ba1 [2021-10-15 20:10:15,174 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:10:15,175 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2021-10-15 20:10:15,194 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/data/a6c38048e/3b917b84f6fc48debd9a5853d2541ddf/FLAGa29180ba1 [2021-10-15 20:10:15,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/data/a6c38048e/3b917b84f6fc48debd9a5853d2541ddf [2021-10-15 20:10:15,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:10:15,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:10:15,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:10:15,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:10:15,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:10:15,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:15,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2d9f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15, skipping insertion in model container [2021-10-15 20:10:15,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:15,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:10:15,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:10:15,900 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_9adc5420-e8f4-44f2-a13d-3443e8fb453d/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c[11348,11361] [2021-10-15 20:10:15,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:10:15,916 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:10:15,977 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_9adc5420-e8f4-44f2-a13d-3443e8fb453d/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c[11348,11361] [2021-10-15 20:10:15,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:10:15,994 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:10:15,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15 WrapperNode [2021-10-15 20:10:15,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:10:15,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:10:15,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:10:15,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:10:16,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:10:16,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:10:16,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:10:16,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:10:16,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:10:16,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:10:16,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:10:16,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:10:16,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (1/1) ... [2021-10-15 20:10:16,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:16,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:16,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:16,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:10:16,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:10:16,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:10:16,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:10:16,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:10:16,977 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:10:16,977 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-15 20:10:16,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:16 BoogieIcfgContainer [2021-10-15 20:10:16,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:10:16,981 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:10:16,981 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:10:16,984 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:10:16,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:10:16,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:10:15" (1/3) ... [2021-10-15 20:10:16,986 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dbf46e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:10:16, skipping insertion in model container [2021-10-15 20:10:16,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:10:16,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:15" (2/3) ... [2021-10-15 20:10:16,987 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dbf46e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:10:16, skipping insertion in model container [2021-10-15 20:10:16,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:10:16,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:16" (3/3) ... [2021-10-15 20:10:16,989 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2021-10-15 20:10:17,032 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:10:17,032 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:10:17,032 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:10:17,033 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:10:17,033 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:10:17,033 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:10:17,033 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:10:17,033 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:10:17,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 124 states, 123 states have (on average 1.7398373983739837) internal successors, (214), 123 states have internal predecessors, (214), 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) [2021-10-15 20:10:17,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-10-15 20:10:17,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:10:17,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:10:17,106 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] [2021-10-15 20:10:17,106 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:10:17,106 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:10:17,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 124 states, 123 states have (on average 1.7398373983739837) internal successors, (214), 123 states have internal predecessors, (214), 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) [2021-10-15 20:10:17,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-10-15 20:10:17,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:10:17,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:10:17,119 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] [2021-10-15 20:10:17,119 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:10:17,127 INFO L791 eck$LassoCheckResult]: Stem: 115#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(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 43#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~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 93#L228true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 48#L231-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 33#L241true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 29#L244-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 58#L254true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 62#L257-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 26#L267true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 17#L270-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 101#L280true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 79#L283-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 114#L293true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 77#L296-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 123#L306true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 111#L306-1true init_#res := init_~tmp___5~0; 91#L391true main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 102#L485true assume !(0 == main_~i2~0); 7#L485-2true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 53#L499-2true [2021-10-15 20:10:17,127 INFO L793 eck$LassoCheckResult]: Loop: 53#L499-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 69#L75true assume !(0 != ~mode1~0 % 256); 64#L100true assume !(~r1~0 < 2); 82#L100-1true ~mode1~0 := 1; 112#L75-2true havoc node2_#t~ite9, node2_#t~ite10; 100#L118true assume !(0 != ~mode2~0 % 256); 104#L143true assume !(~r2~0 < 2); 94#L143-1true ~mode2~0 := 1; 65#L118-2true havoc node3_#t~ite11, node3_#t~ite12; 15#L161true assume !(0 != ~mode3~0 % 256); 71#L186true assume !(~r3~0 < 2); 27#L186-1true ~mode3~0 := 1; 6#L161-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 75#L399true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 120#L399-1true check_#res := check_~tmp~1; 30#L447true main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 98#L529true assume !(0 == assert_~arg % 256); 28#L524true main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 53#L499-2true [2021-10-15 20:10:17,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:17,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1693212754, now seen corresponding path program 1 times [2021-10-15 20:10:17,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:17,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336100373] [2021-10-15 20:10:17,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:17,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:17,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:10:17,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336100373] [2021-10-15 20:10:17,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336100373] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:10:17,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:10:17,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 20:10:17,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787672679] [2021-10-15 20:10:17,519 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:10:17,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:17,521 INFO L82 PathProgramCache]: Analyzing trace with hash 2071749167, now seen corresponding path program 1 times [2021-10-15 20:10:17,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:17,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485352907] [2021-10-15 20:10:17,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:17,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:17,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:17,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:10:17,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485352907] [2021-10-15 20:10:17,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485352907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:10:17,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:10:17,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 20:10:17,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370251463] [2021-10-15 20:10:17,719 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:10:17,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:10:17,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:10:17,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:10:17,744 INFO L87 Difference]: Start difference. First operand has 124 states, 123 states have (on average 1.7398373983739837) internal successors, (214), 123 states have internal predecessors, (214), 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 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-10-15 20:10:17,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:10:17,858 INFO L93 Difference]: Finished difference Result 128 states and 214 transitions. [2021-10-15 20:10:17,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 20:10:17,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 214 transitions. [2021-10-15 20:10:17,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-15 20:10:17,871 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 119 states and 198 transitions. [2021-10-15 20:10:17,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2021-10-15 20:10:17,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2021-10-15 20:10:17,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 198 transitions. [2021-10-15 20:10:17,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:10:17,875 INFO L681 BuchiCegarLoop]: Abstraction has 119 states and 198 transitions. [2021-10-15 20:10:17,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 198 transitions. [2021-10-15 20:10:17,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-15 20:10:17,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.6638655462184875) internal successors, (198), 118 states have internal predecessors, (198), 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) [2021-10-15 20:10:17,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 198 transitions. [2021-10-15 20:10:17,910 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 198 transitions. [2021-10-15 20:10:17,911 INFO L587 BuchiCegarLoop]: Abstraction has 119 states and 198 transitions. [2021-10-15 20:10:17,911 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:10:17,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 198 transitions. [2021-10-15 20:10:17,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-15 20:10:17,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:10:17,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:10:17,915 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] [2021-10-15 20:10:17,916 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] [2021-10-15 20:10:17,916 INFO L791 eck$LassoCheckResult]: Stem: 387#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(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 338#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~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 339#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 345#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 325#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 285#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 323#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 333#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 318#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 291#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 302#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 365#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 371#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 335#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 370#L306 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 272#L306-1 init_#res := init_~tmp___5~0; 379#L391 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 380#L485 assume !(0 == main_~i2~0); 277#L485-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 278#L499-2 [2021-10-15 20:10:17,916 INFO L793 eck$LassoCheckResult]: Loop: 278#L499-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 352#L75 assume !(0 != ~mode1~0 % 256); 360#L100 assume !(~r1~0 < 2); 340#L100-1 ~mode1~0 := 1; 315#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 381#L118 assume !(0 != ~mode2~0 % 256); 382#L143 assume !(~r2~0 < 2); 336#L143-1 ~mode2~0 := 1; 362#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 296#L161 assume !(0 != ~mode3~0 % 256); 297#L186 assume !(~r3~0 < 2); 319#L186-1 ~mode3~0 := 1; 275#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 276#L399 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 369#L400 assume ~st1~0 + ~nl1~0 <= 1; 287#L401 assume ~st2~0 + ~nl2~0 <= 1; 288#L402 assume ~st3~0 + ~nl3~0 <= 1; 355#L403 assume ~r1~0 >= 2; 299#L407 assume ~r1~0 < 2; 300#L412 assume ~r1~0 >= 2; 306#L417 assume ~r1~0 < 2;check_~tmp~1 := 1; 327#L399-1 check_#res := check_~tmp~1; 321#L447 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 322#L529 assume !(0 == assert_~arg % 256); 320#L524 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 278#L499-2 [2021-10-15 20:10:17,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:17,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1693212754, now seen corresponding path program 2 times [2021-10-15 20:10:17,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:17,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583237991] [2021-10-15 20:10:17,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:17,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:18,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:18,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:10:18,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583237991] [2021-10-15 20:10:18,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583237991] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:10:18,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:10:18,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 20:10:18,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76463537] [2021-10-15 20:10:18,023 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:10:18,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:18,029 INFO L82 PathProgramCache]: Analyzing trace with hash -980587296, now seen corresponding path program 1 times [2021-10-15 20:10:18,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:18,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862398978] [2021-10-15 20:10:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:18,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:18,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:10:18,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862398978] [2021-10-15 20:10:18,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862398978] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:10:18,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:10:18,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:10:18,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780814006] [2021-10-15 20:10:18,091 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:10:18,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:10:18,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:10:18,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:10:18,093 INFO L87 Difference]: Start difference. First operand 119 states and 198 transitions. cyclomatic complexity: 80 Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:10:18,177 INFO L93 Difference]: Finished difference Result 190 states and 308 transitions. [2021-10-15 20:10:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 20:10:18,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 308 transitions. [2021-10-15 20:10:18,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-15 20:10:18,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 187 states and 285 transitions. [2021-10-15 20:10:18,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2021-10-15 20:10:18,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 187 [2021-10-15 20:10:18,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 285 transitions. [2021-10-15 20:10:18,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:10:18,192 INFO L681 BuchiCegarLoop]: Abstraction has 187 states and 285 transitions. [2021-10-15 20:10:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 285 transitions. [2021-10-15 20:10:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 119. [2021-10-15 20:10:18,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.4873949579831933) internal successors, (177), 118 states have internal predecessors, (177), 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) [2021-10-15 20:10:18,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 177 transitions. [2021-10-15 20:10:18,216 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 177 transitions. [2021-10-15 20:10:18,216 INFO L587 BuchiCegarLoop]: Abstraction has 119 states and 177 transitions. [2021-10-15 20:10:18,216 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 20:10:18,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 177 transitions. [2021-10-15 20:10:18,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-15 20:10:18,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:10:18,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:10:18,230 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] [2021-10-15 20:10:18,230 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] [2021-10-15 20:10:18,231 INFO L791 eck$LassoCheckResult]: Stem: 709#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(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 660#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~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 661#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 667#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 647#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 608#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 644#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 655#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 639#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 612#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 623#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 687#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 694#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 657#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 692#L306 assume ~id1~0 != ~id2~0; 696#L307 assume ~id1~0 != ~id3~0; 615#L308 assume ~id2~0 != ~id3~0; 616#L309 assume ~id1~0 >= 0; 695#L310 assume ~id2~0 >= 0; 672#L311 assume ~id3~0 >= 0; 673#L312 assume 0 == ~r1~0; 637#L313 assume 0 == ~r2~0; 638#L314 assume 0 == ~r3~0; 665#L315 assume ~max1~0 == ~id1~0; 666#L316 assume ~max2~0 == ~id2~0; 594#L317 assume ~max3~0 == ~id3~0; 595#L318 assume 0 == ~st1~0; 710#L319 assume 0 == ~st2~0; 700#L320 assume 0 == ~st3~0; 689#L321 assume 0 == ~nl1~0; 690#L322 assume 0 == ~nl2~0; 592#L323 assume 0 == ~nl3~0; 593#L324 assume 0 == ~mode1~0 % 256; 624#L325 assume 0 == ~mode2~0 % 256; 645#L326 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 646#L306-1 init_#res := init_~tmp___5~0; 701#L391 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 702#L485 assume !(0 == main_~i2~0); 598#L485-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 599#L499-2 [2021-10-15 20:10:18,231 INFO L793 eck$LassoCheckResult]: Loop: 599#L499-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 674#L75 assume !(0 != ~mode1~0 % 256); 682#L100 assume !(~r1~0 < 2); 662#L100-1 ~mode1~0 := 1; 636#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 703#L118 assume !(0 != ~mode2~0 % 256); 704#L143 assume !(~r2~0 < 2); 658#L143-1 ~mode2~0 := 1; 684#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 617#L161 assume !(0 != ~mode3~0 % 256); 618#L186 assume !(~r3~0 < 2); 640#L186-1 ~mode3~0 := 1; 596#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 597#L399 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 691#L400 assume ~st1~0 + ~nl1~0 <= 1; 605#L401 assume ~st2~0 + ~nl2~0 <= 1; 606#L402 assume ~st3~0 + ~nl3~0 <= 1; 677#L403 assume ~r1~0 >= 2; 620#L407 assume ~r1~0 < 2; 621#L412 assume ~r1~0 >= 2; 627#L417 assume ~r1~0 < 2;check_~tmp~1 := 1; 649#L399-1 check_#res := check_~tmp~1; 642#L447 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 643#L529 assume !(0 == assert_~arg % 256); 641#L524 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 599#L499-2 [2021-10-15 20:10:18,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:18,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1849055478, now seen corresponding path program 1 times [2021-10-15 20:10:18,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:18,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816944612] [2021-10-15 20:10:18,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:18,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:10:18,314 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:10:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:10:18,418 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:10:18,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:18,419 INFO L82 PathProgramCache]: Analyzing trace with hash -980587296, now seen corresponding path program 2 times [2021-10-15 20:10:18,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:18,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470878134] [2021-10-15 20:10:18,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:18,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:18,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:10:18,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470878134] [2021-10-15 20:10:18,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470878134] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:10:18,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:10:18,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:10:18,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930427157] [2021-10-15 20:10:18,451 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:10:18,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:10:18,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:10:18,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:10:18,453 INFO L87 Difference]: Start difference. First operand 119 states and 177 transitions. cyclomatic complexity: 59 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-10-15 20:10:18,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:10:18,508 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2021-10-15 20:10:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 20:10:18,509 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 254 transitions. [2021-10-15 20:10:18,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2021-10-15 20:10:18,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 171 states and 254 transitions. [2021-10-15 20:10:18,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2021-10-15 20:10:18,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2021-10-15 20:10:18,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 254 transitions. [2021-10-15 20:10:18,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:10:18,527 INFO L681 BuchiCegarLoop]: Abstraction has 171 states and 254 transitions. [2021-10-15 20:10:18,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 254 transitions. [2021-10-15 20:10:18,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-10-15 20:10:18,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.4853801169590644) internal successors, (254), 170 states have internal predecessors, (254), 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) [2021-10-15 20:10:18,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 254 transitions. [2021-10-15 20:10:18,542 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 254 transitions. [2021-10-15 20:10:18,543 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 254 transitions. [2021-10-15 20:10:18,543 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 20:10:18,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 254 transitions. [2021-10-15 20:10:18,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2021-10-15 20:10:18,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:10:18,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:10:18,551 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] [2021-10-15 20:10:18,551 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] [2021-10-15 20:10:18,551 INFO L791 eck$LassoCheckResult]: Stem: 1016#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(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 959#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~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 960#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 966#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 944#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 904#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 941#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 952#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 935#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 908#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 918#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 988#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 996#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 954#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 994#L306 assume ~id1~0 != ~id2~0; 998#L307 assume ~id1~0 != ~id3~0; 911#L308 assume ~id2~0 != ~id3~0; 912#L309 assume ~id1~0 >= 0; 997#L310 assume ~id2~0 >= 0; 971#L311 assume ~id3~0 >= 0; 972#L312 assume 0 == ~r1~0; 933#L313 assume 0 == ~r2~0; 934#L314 assume 0 == ~r3~0; 964#L315 assume ~max1~0 == ~id1~0; 965#L316 assume ~max2~0 == ~id2~0; 890#L317 assume ~max3~0 == ~id3~0; 891#L318 assume 0 == ~st1~0; 1019#L319 assume 0 == ~st2~0; 1002#L320 assume 0 == ~st3~0; 991#L321 assume 0 == ~nl1~0; 992#L322 assume 0 == ~nl2~0; 888#L323 assume 0 == ~nl3~0; 889#L324 assume 0 == ~mode1~0 % 256; 919#L325 assume 0 == ~mode2~0 % 256; 942#L326 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 943#L306-1 init_#res := init_~tmp___5~0; 1003#L391 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 1004#L485 assume !(0 == main_~i2~0); 894#L485-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 895#L499-2 [2021-10-15 20:10:18,560 INFO L793 eck$LassoCheckResult]: Loop: 895#L499-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 1048#L75 assume !(0 != ~mode1~0 % 256); 1047#L100 assume ~r1~0 < 2; 1017#L101 assume !(0 != ~ep12~0 % 256); 963#L101-2 assume !(0 != ~ep13~0 % 256); 961#L100-1 ~mode1~0 := 1; 932#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 1046#L118 assume !(0 != ~mode2~0 % 256); 1010#L143 assume !(~r2~0 < 2); 955#L143-1 ~mode2~0 := 1; 1033#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 1031#L161 assume !(0 != ~mode3~0 % 256); 1028#L186 assume !(~r3~0 < 2); 936#L186-1 ~mode3~0 := 1; 892#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 893#L399 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 993#L400 assume ~st1~0 + ~nl1~0 <= 1; 901#L401 assume ~st2~0 + ~nl2~0 <= 1; 902#L402 assume ~st3~0 + ~nl3~0 <= 1; 1021#L403 assume !(~r1~0 >= 2); 956#L406 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 957#L407 assume ~r1~0 < 2; 1020#L412 assume !(~r1~0 >= 2); 922#L416 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 923#L417 assume ~r1~0 < 2;check_~tmp~1 := 1; 1052#L399-1 check_#res := check_~tmp~1; 1051#L447 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1050#L529 assume !(0 == assert_~arg % 256); 1049#L524 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 895#L499-2 [2021-10-15 20:10:18,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:18,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1849055478, now seen corresponding path program 2 times [2021-10-15 20:10:18,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:18,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169998854] [2021-10-15 20:10:18,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:18,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:10:18,665 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:10:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:10:18,798 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:10:18,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:18,804 INFO L82 PathProgramCache]: Analyzing trace with hash 365017361, now seen corresponding path program 1 times [2021-10-15 20:10:18,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:18,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288247328] [2021-10-15 20:10:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:18,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:10:18,812 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:10:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:10:18,825 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:10:18,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:18,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1685413828, now seen corresponding path program 1 times [2021-10-15 20:10:18,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:18,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043351300] [2021-10-15 20:10:18,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:18,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:18,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:10:18,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043351300] [2021-10-15 20:10:18,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043351300] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:10:18,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:10:18,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:10:18,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335805533] [2021-10-15 20:10:19,598 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:10:19,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:10:19,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:10:19,607 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:10:19,608 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:10:19,608 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:19,608 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:10:19,608 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:10:19,608 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.1.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-10-15 20:10:19,608 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:10:19,609 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:10:19,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:19,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,129 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:10:20,130 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:10:20,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:20,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:20,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:20,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:10:20,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:10:20,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 20:10:20,166 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:10:20,166 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~ep12~0=0} Honda state: {~ep12~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:10:20,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:20,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:20,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:20,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:20,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 20:10:20,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:10:20,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:10:20,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:20,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:20,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:20,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:20,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 20:10:20,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:10:20,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:10:20,393 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:10:20,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:20,396 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:10:20,396 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:10:20,397 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:10:20,397 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:10:20,397 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:10:20,397 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:20,397 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:10:20,397 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:10:20,397 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.1.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-10-15 20:10:20,397 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:10:20,397 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:10:20,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:10:20,863 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:10:20,874 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:10:20,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:20,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:20,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:20,883 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 [2021-10-15 20:10:20,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:10:20,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:10:20,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:10:20,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:10:20,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:10:20,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:10:20,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:10:20,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 20:10:20,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:10:20,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:20,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:20,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:20,943 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:20,950 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 [2021-10-15 20:10:20,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:10:20,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:10:20,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:10:20,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:10:20,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:10:20,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:10:20,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:10:20,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 20:10:20,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:10:21,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:21,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:21,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:21,012 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:21,018 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 [2021-10-15 20:10:21,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:10:21,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:10:21,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:10:21,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:10:21,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:10:21,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 20:10:21,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:10:21,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:10:21,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:10:21,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:21,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:21,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:21,088 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:21,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 20:10:21,092 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 [2021-10-15 20:10:21,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:10:21,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:10:21,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:10:21,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:10:21,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:10:21,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:10:21,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:10:21,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:10:21,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:21,158 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:21,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:21,159 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:21,171 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 [2021-10-15 20:10:21,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:10:21,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:10:21,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:10:21,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:10:21,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:10:21,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:10:21,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:10:21,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 20:10:21,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:10:21,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-15 20:10:21,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:21,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:21,207 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:21,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 20:10:21,209 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 [2021-10-15 20:10:21,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:10:21,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:10:21,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:10:21,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:10:21,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:10:21,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:10:21,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:10:21,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:10:21,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:21,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:21,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:21,242 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:21,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 20:10:21,246 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 [2021-10-15 20:10:21,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:10:21,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:10:21,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:10:21,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:10:21,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:10:21,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:10:21,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:10:21,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:10:21,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:21,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:21,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:21,290 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:21,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 20:10:21,292 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 [2021-10-15 20:10:21,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:10:21,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:10:21,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:10:21,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:10:21,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:10:21,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:10:21,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:10:21,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:10:21,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:21,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:21,371 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:21,377 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 [2021-10-15 20:10:21,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:10:21,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:10:21,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:10:21,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:10:21,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:10:21,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 20:10:21,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:10:21,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:10:21,403 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:10:21,408 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-15 20:10:21,408 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-15 20:10:21,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:10:21,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:21,415 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:21,423 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:10:21,423 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 20:10:21,423 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:10:21,424 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] [2021-10-15 20:10:21,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 20:10:21,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:21,460 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 20:10:21,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:21,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 20:10:21,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:10:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:21,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 20:10:21,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:10:22,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:22,005 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 [2021-10-15 20:10:22,006 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 171 states and 254 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-10-15 20:10:22,087 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 171 states and 254 transitions. cyclomatic complexity: 84. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 290 states and 439 transitions. Complement of second has 4 states. [2021-10-15 20:10:22,087 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 [2021-10-15 20:10:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-10-15 20:10:22,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2021-10-15 20:10:22,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 177 transitions. Stem has 39 letters. Loop has 29 letters. [2021-10-15 20:10:22,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:10:22,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 177 transitions. Stem has 68 letters. Loop has 29 letters. [2021-10-15 20:10:22,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:10:22,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 177 transitions. Stem has 39 letters. Loop has 58 letters. [2021-10-15 20:10:22,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:10:22,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 290 states and 439 transitions. [2021-10-15 20:10:22,103 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:10:22,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 290 states to 0 states and 0 transitions. [2021-10-15 20:10:22,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 20:10:22,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 20:10:22,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 20:10:22,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:10:22,104 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:10:22,104 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:10:22,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:10:22,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:10:22,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:10:22,107 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-10-15 20:10:22,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:10:22,107 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-15 20:10:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 20:10:22,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-15 20:10:22,108 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:10:22,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-15 20:10:22,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 20:10:22,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 20:10:22,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 20:10:22,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:10:22,109 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:10:22,109 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:10:22,109 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:10:22,109 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-15 20:10:22,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 20:10:22,109 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:10:22,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 20:10:22,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:10:22 BoogieIcfgContainer [2021-10-15 20:10:22,117 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:10:22,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:10:22,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:10:22,118 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:10:22,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:16" (3/4) ... [2021-10-15 20:10:22,121 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 20:10:22,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:10:22,127 INFO L168 Benchmark]: Toolchain (without parser) took 6523.22 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 65.7 MB in the beginning and 55.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:22,127 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory was 82.8 MB in the beginning and 82.7 MB in the end (delta: 67.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:10:22,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 393.61 ms. Allocated memory is still 104.9 MB. Free memory was 65.5 MB in the beginning and 73.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:22,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.18 ms. Allocated memory is still 104.9 MB. Free memory was 73.6 MB in the beginning and 70.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:22,130 INFO L168 Benchmark]: Boogie Preprocessor took 80.52 ms. Allocated memory is still 104.9 MB. Free memory was 70.9 MB in the beginning and 68.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:22,131 INFO L168 Benchmark]: RCFGBuilder took 824.29 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 46.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:22,134 INFO L168 Benchmark]: BuchiAutomizer took 5136.31 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 46.0 MB in the beginning and 56.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:22,137 INFO L168 Benchmark]: Witness Printer took 4.17 ms. Allocated memory is still 130.0 MB. Free memory was 56.2 MB in the beginning and 55.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:22,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory was 82.8 MB in the beginning and 82.7 MB in the end (delta: 67.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 393.61 ms. Allocated memory is still 104.9 MB. Free memory was 65.5 MB in the beginning and 73.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.18 ms. Allocated memory is still 104.9 MB. Free memory was 73.6 MB in the beginning and 70.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.52 ms. Allocated memory is still 104.9 MB. Free memory was 70.9 MB in the beginning and 68.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 824.29 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 46.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5136.31 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 46.0 MB in the beginning and 56.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.17 ms. Allocated memory is still 130.0 MB. Free memory was 56.2 MB in the beginning and 55.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. 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 59.7ms AutomataMinimizationTime, 3 MinimizatonAttempts, 68 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 171 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 753 SDtfs, 461 SDslu, 1433 SDs, 0 SdLazy, 54 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 91.2ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital131 mio100 ax100 hnf100 lsp29 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 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! [2021-10-15 20:10:22,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:22,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adc5420-e8f4-44f2-a13d-3443e8fb453d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...