./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer --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 0.2.0-a4ecdab [2020-11-29 19:00:29,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:00:29,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:00:29,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:00:29,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:00:29,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:00:29,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:00:29,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:00:29,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:00:29,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:00:29,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:00:29,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:00:29,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:00:29,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:00:29,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:00:29,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:00:29,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:00:29,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:00:29,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:00:29,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:00:29,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:00:29,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:00:29,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:00:29,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:00:29,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:00:29,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:00:29,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:00:29,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:00:29,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:00:29,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:00:29,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:00:29,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:00:29,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:00:29,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:00:29,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:00:29,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:00:29,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:00:29,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:00:29,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:00:29,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:00:29,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:00:29,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:00:29,802 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:00:29,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:00:29,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:00:29,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:00:29,805 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:00:29,805 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:00:29,806 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:00:29,806 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:00:29,806 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:00:29,806 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:00:29,807 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:00:29,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:00:29,808 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:00:29,808 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:00:29,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:00:29,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:00:29,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:00:29,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:00:29,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:00:29,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:00:29,810 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:00:29,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:00:29,811 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:00:29,811 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:00:29,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:00:29,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:00:29,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:00:29,812 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:00:29,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:00:29,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:00:29,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:00:29,813 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:00:29,814 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:00:29,814 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-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e507d3bdc70196e681a85ce01788ab9eaa40a0c0 [2020-11-29 19:00:30,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:00:30,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:00:30,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:00:30,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:00:30,227 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:00:30,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2020-11-29 19:00:30,329 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/data/96c004289/5432dbf5e2db453d912768a9ee671bd5/FLAG3f4838e0d [2020-11-29 19:00:31,019 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:00:31,020 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2020-11-29 19:00:31,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/data/96c004289/5432dbf5e2db453d912768a9ee671bd5/FLAG3f4838e0d [2020-11-29 19:00:31,329 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/data/96c004289/5432dbf5e2db453d912768a9ee671bd5 [2020-11-29 19:00:31,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:00:31,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:00:31,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:00:31,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:00:31,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:00:31,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:31,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47af1d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31, skipping insertion in model container [2020-11-29 19:00:31,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:31,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:00:31,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:00:31,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:00:31,752 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:00:31,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:00:31,872 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:00:31,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31 WrapperNode [2020-11-29 19:00:31,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:00:31,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:00:31,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:00:31,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:00:31,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:31,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:31,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:00:31,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:00:31,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:00:31,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:00:31,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:31,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:31,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:32,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:32,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:32,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:32,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... [2020-11-29 19:00:32,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:00:32,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:00:32,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:00:32,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:00:32,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:00:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:00:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:00:32,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:00:33,229 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:00:33,230 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-11-29 19:00:33,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:00:33 BoogieIcfgContainer [2020-11-29 19:00:33,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:00:33,233 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:00:33,234 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:00:33,238 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:00:33,239 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:00:33,239 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:00:31" (1/3) ... [2020-11-29 19:00:33,241 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@eb71f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:00:33, skipping insertion in model container [2020-11-29 19:00:33,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:00:33,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:31" (2/3) ... [2020-11-29 19:00:33,242 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@eb71f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:00:33, skipping insertion in model container [2020-11-29 19:00:33,242 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:00:33,242 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:00:33" (3/3) ... [2020-11-29 19:00:33,244 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2020-11-29 19:00:33,299 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:00:33,299 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:00:33,299 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:00:33,299 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:00:33,299 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:00:33,300 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:00:33,300 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:00:33,300 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:00:33,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2020-11-29 19:00:33,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 70 [2020-11-29 19:00:33,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:00:33,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:00:33,366 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:00:33,366 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:00:33,366 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:00:33,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2020-11-29 19:00:33,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 70 [2020-11-29 19:00:33,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:00:33,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:00:33,382 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:00:33,382 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:00:33,391 INFO L794 eck$LassoCheckResult]: Stem: 93#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; 11#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; 111#L228true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 85#L231-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 4#L241true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 120#L244-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 38#L254true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 42#L257-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 95#L267true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 75#L270-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 126#L280true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 102#L283-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 19#L293true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 5#L296-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 59#L306true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 60#L306-1true init_#res := init_~tmp___5~0; 73#L391true main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 65#L485true assume !(0 == main_~i2~0); 51#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; 44#L499-2true [2020-11-29 19:00:33,392 INFO L796 eck$LassoCheckResult]: Loop: 44#L499-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 57#L75true assume !(0 != ~mode1~0 % 256); 50#L100true assume !(~r1~0 < 2); 47#L100-1true ~mode1~0 := 1; 39#L75-2true havoc node2_#t~ite9, node2_#t~ite10; 108#L118true assume !(0 != ~mode2~0 % 256); 82#L143true assume !(~r2~0 < 2); 98#L143-1true ~mode2~0 := 1; 90#L118-2true havoc node3_#t~ite11, node3_#t~ite12; 26#L161true assume !(0 != ~mode3~0 % 256); 3#L186true assume !(~r3~0 < 2); 17#L186-1true ~mode3~0 := 1; 24#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; 101#L399true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 83#L399-1true check_#res := check_~tmp~1; 40#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; 63#L529true assume !(0 == assert_~arg % 256); 36#L524true main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 44#L499-2true [2020-11-29 19:00:33,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:33,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1693212754, now seen corresponding path program 1 times [2020-11-29 19:00:33,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:00:33,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130472148] [2020-11-29 19:00:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:00:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:00:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:00:33,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130472148] [2020-11-29 19:00:33,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:00:33,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:00:33,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105324698] [2020-11-29 19:00:33,806 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:00:33,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:33,812 INFO L82 PathProgramCache]: Analyzing trace with hash 2071749231, now seen corresponding path program 1 times [2020-11-29 19:00:33,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:00:33,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813240458] [2020-11-29 19:00:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:00:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:00:33,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:00:33,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813240458] [2020-11-29 19:00:33,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:00:33,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:00:33,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334763748] [2020-11-29 19:00:34,000 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:00:34,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:00:34,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:00:34,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:00:34,024 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 5 states. [2020-11-29 19:00:34,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:00:34,179 INFO L93 Difference]: Finished difference Result 128 states and 214 transitions. [2020-11-29 19:00:34,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:00:34,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 214 transitions. [2020-11-29 19:00:34,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 19:00:34,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 119 states and 198 transitions. [2020-11-29 19:00:34,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2020-11-29 19:00:34,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2020-11-29 19:00:34,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 198 transitions. [2020-11-29 19:00:34,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:00:34,206 INFO L691 BuchiCegarLoop]: Abstraction has 119 states and 198 transitions. [2020-11-29 19:00:34,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 198 transitions. [2020-11-29 19:00:34,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-11-29 19:00:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-29 19:00:34,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 198 transitions. [2020-11-29 19:00:34,268 INFO L714 BuchiCegarLoop]: Abstraction has 119 states and 198 transitions. [2020-11-29 19:00:34,269 INFO L594 BuchiCegarLoop]: Abstraction has 119 states and 198 transitions. [2020-11-29 19:00:34,269 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:00:34,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 198 transitions. [2020-11-29 19:00:34,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 19:00:34,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:00:34,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:00:34,281 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:00:34,281 INFO L853 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] [2020-11-29 19:00:34,282 INFO L794 eck$LassoCheckResult]: Stem: 385#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; 289#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; 290#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 334#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 274#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 275#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 335#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 336#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 343#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 303#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 376#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 357#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 304#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 277#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 278#L306 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 281#L306-1 init_#res := init_~tmp___5~0; 364#L391 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 367#L485 assume !(0 == main_~i2~0); 355#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; 332#L499-2 [2020-11-29 19:00:34,282 INFO L796 eck$LassoCheckResult]: Loop: 332#L499-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 345#L75 assume !(0 != ~mode1~0 % 256); 353#L100 assume !(~r1~0 < 2); 348#L100-1 ~mode1~0 := 1; 338#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 339#L118 assume !(0 != ~mode2~0 % 256); 381#L143 assume !(~r2~0 < 2); 351#L143-1 ~mode2~0 := 1; 383#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 313#L161 assume !(0 != ~mode3~0 % 256); 271#L186 assume !(~r3~0 < 2); 272#L186-1 ~mode3~0 := 1; 301#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; 311#L399 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 349#L400 assume ~st1~0 + ~nl1~0 <= 1; 350#L401 assume ~st2~0 + ~nl2~0 <= 1; 375#L402 assume ~st3~0 + ~nl3~0 <= 1; 312#L403 assume ~r1~0 >= 2; 309#L407 assume ~r1~0 < 2; 347#L412 assume ~r1~0 >= 2; 305#L417 assume ~r1~0 < 2;check_~tmp~1 := 1; 306#L399-1 check_#res := check_~tmp~1; 340#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; 341#L529 assume !(0 == assert_~arg % 256); 331#L524 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 332#L499-2 [2020-11-29 19:00:34,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:34,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1693212754, now seen corresponding path program 2 times [2020-11-29 19:00:34,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:00:34,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153285176] [2020-11-29 19:00:34,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:00:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:00:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:00:34,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153285176] [2020-11-29 19:00:34,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:00:34,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:00:34,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411184475] [2020-11-29 19:00:34,397 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:00:34,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:34,398 INFO L82 PathProgramCache]: Analyzing trace with hash -980587232, now seen corresponding path program 1 times [2020-11-29 19:00:34,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:00:34,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282801982] [2020-11-29 19:00:34,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:00:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:00:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:00:34,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282801982] [2020-11-29 19:00:34,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:00:34,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:00:34,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811647907] [2020-11-29 19:00:34,437 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:00:34,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:00:34,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:00:34,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:00:34,438 INFO L87 Difference]: Start difference. First operand 119 states and 198 transitions. cyclomatic complexity: 80 Second operand 5 states. [2020-11-29 19:00:34,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:00:34,540 INFO L93 Difference]: Finished difference Result 190 states and 308 transitions. [2020-11-29 19:00:34,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:00:34,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 308 transitions. [2020-11-29 19:00:34,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 19:00:34,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 187 states and 285 transitions. [2020-11-29 19:00:34,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2020-11-29 19:00:34,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 187 [2020-11-29 19:00:34,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 285 transitions. [2020-11-29 19:00:34,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:00:34,560 INFO L691 BuchiCegarLoop]: Abstraction has 187 states and 285 transitions. [2020-11-29 19:00:34,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 285 transitions. [2020-11-29 19:00:34,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 119. [2020-11-29 19:00:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-29 19:00:34,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 177 transitions. [2020-11-29 19:00:34,574 INFO L714 BuchiCegarLoop]: Abstraction has 119 states and 177 transitions. [2020-11-29 19:00:34,574 INFO L594 BuchiCegarLoop]: Abstraction has 119 states and 177 transitions. [2020-11-29 19:00:34,574 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:00:34,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 177 transitions. [2020-11-29 19:00:34,578 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 19:00:34,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:00:34,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:00:34,584 INFO L852 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] [2020-11-29 19:00:34,584 INFO L853 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] [2020-11-29 19:00:34,586 INFO L794 eck$LassoCheckResult]: Stem: 707#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; 610#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; 611#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 656#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 596#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 597#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 657#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 658#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 665#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 624#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 698#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 679#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 625#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 599#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 600#L306 assume ~id1~0 != ~id2~0; 614#L307 assume ~id1~0 != ~id3~0; 615#L308 assume ~id2~0 != ~id3~0; 682#L309 assume ~id1~0 >= 0; 603#L310 assume ~id2~0 >= 0; 604#L311 assume ~id3~0 >= 0; 647#L312 assume 0 == ~r1~0; 648#L313 assume 0 == ~r2~0; 701#L314 assume 0 == ~r3~0; 638#L315 assume ~max1~0 == ~id1~0; 639#L316 assume ~max2~0 == ~id2~0; 685#L317 assume ~max3~0 == ~id3~0; 612#L318 assume 0 == ~st1~0; 613#L319 assume 0 == ~st2~0; 681#L320 assume 0 == ~st3~0; 601#L321 assume 0 == ~nl1~0; 602#L322 assume 0 == ~nl2~0; 645#L323 assume 0 == ~nl3~0; 646#L324 assume 0 == ~mode1~0 % 256; 700#L325 assume 0 == ~mode2~0 % 256; 636#L326 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 637#L306-1 init_#res := init_~tmp___5~0; 688#L391 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 689#L485 assume !(0 == main_~i2~0); 677#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; 654#L499-2 [2020-11-29 19:00:34,586 INFO L796 eck$LassoCheckResult]: Loop: 654#L499-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 667#L75 assume !(0 != ~mode1~0 % 256); 675#L100 assume !(~r1~0 < 2); 670#L100-1 ~mode1~0 := 1; 660#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 661#L118 assume !(0 != ~mode2~0 % 256); 703#L143 assume !(~r2~0 < 2); 673#L143-1 ~mode2~0 := 1; 705#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 634#L161 assume !(0 != ~mode3~0 % 256); 593#L186 assume !(~r3~0 < 2); 594#L186-1 ~mode3~0 := 1; 622#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; 632#L399 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 671#L400 assume ~st1~0 + ~nl1~0 <= 1; 672#L401 assume ~st2~0 + ~nl2~0 <= 1; 697#L402 assume ~st3~0 + ~nl3~0 <= 1; 633#L403 assume ~r1~0 >= 2; 630#L407 assume ~r1~0 < 2; 669#L412 assume ~r1~0 >= 2; 626#L417 assume ~r1~0 < 2;check_~tmp~1 := 1; 627#L399-1 check_#res := check_~tmp~1; 662#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; 663#L529 assume !(0 == assert_~arg % 256); 653#L524 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 654#L499-2 [2020-11-29 19:00:34,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:34,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1849055478, now seen corresponding path program 1 times [2020-11-29 19:00:34,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:00:34,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484149409] [2020-11-29 19:00:34,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:00:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:00:34,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:00:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:00:34,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:00:34,783 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:00:34,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:34,784 INFO L82 PathProgramCache]: Analyzing trace with hash -980587232, now seen corresponding path program 2 times [2020-11-29 19:00:34,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:00:34,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922193771] [2020-11-29 19:00:34,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:00:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:00:34,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:00:34,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922193771] [2020-11-29 19:00:34,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:00:34,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:00:34,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537381612] [2020-11-29 19:00:34,849 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:00:34,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:00:34,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:00:34,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:00:34,850 INFO L87 Difference]: Start difference. First operand 119 states and 177 transitions. cyclomatic complexity: 59 Second operand 3 states. [2020-11-29 19:00:34,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:00:34,932 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-11-29 19:00:34,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:00:34,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 254 transitions. [2020-11-29 19:00:34,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2020-11-29 19:00:34,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 171 states and 254 transitions. [2020-11-29 19:00:34,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2020-11-29 19:00:34,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2020-11-29 19:00:34,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 254 transitions. [2020-11-29 19:00:34,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:00:34,938 INFO L691 BuchiCegarLoop]: Abstraction has 171 states and 254 transitions. [2020-11-29 19:00:34,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 254 transitions. [2020-11-29 19:00:34,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-11-29 19:00:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-29 19:00:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 254 transitions. [2020-11-29 19:00:34,957 INFO L714 BuchiCegarLoop]: Abstraction has 171 states and 254 transitions. [2020-11-29 19:00:34,957 INFO L594 BuchiCegarLoop]: Abstraction has 171 states and 254 transitions. [2020-11-29 19:00:34,957 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:00:34,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 254 transitions. [2020-11-29 19:00:34,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2020-11-29 19:00:34,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:00:34,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:00:34,965 INFO L852 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] [2020-11-29 19:00:34,965 INFO L853 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] [2020-11-29 19:00:34,965 INFO L794 eck$LassoCheckResult]: Stem: 1009#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; 906#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; 907#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 953#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 892#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 893#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 954#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 955#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 962#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 920#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 998#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 976#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 921#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 895#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 896#L306 assume ~id1~0 != ~id2~0; 910#L307 assume ~id1~0 != ~id3~0; 911#L308 assume ~id2~0 != ~id3~0; 980#L309 assume ~id1~0 >= 0; 899#L310 assume ~id2~0 >= 0; 900#L311 assume ~id3~0 >= 0; 944#L312 assume 0 == ~r1~0; 945#L313 assume 0 == ~r2~0; 1001#L314 assume 0 == ~r3~0; 935#L315 assume ~max1~0 == ~id1~0; 936#L316 assume ~max2~0 == ~id2~0; 983#L317 assume ~max3~0 == ~id3~0; 908#L318 assume 0 == ~st1~0; 909#L319 assume 0 == ~st2~0; 979#L320 assume 0 == ~st3~0; 897#L321 assume 0 == ~nl1~0; 898#L322 assume 0 == ~nl2~0; 942#L323 assume 0 == ~nl3~0; 943#L324 assume 0 == ~mode1~0 % 256; 1000#L325 assume 0 == ~mode2~0 % 256; 933#L326 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 934#L306-1 init_#res := init_~tmp___5~0; 987#L391 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 988#L485 assume !(0 == main_~i2~0); 973#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; 974#L499-2 [2020-11-29 19:00:34,967 INFO L796 eck$LassoCheckResult]: Loop: 974#L499-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 1024#L75 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256); 982#L77 assume !(0 != ~ep21~0 % 256); 990#L77-1 assume !(0 != ~ep31~0 % 256); 903#L84 assume !(2 == ~r1~0); 904#L91 ~mode1~0 := 0; 1054#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 1051#L118 assume !(0 != ~mode2~0 % 256); 1049#L143 assume !(~r2~0 < 2); 1010#L143-1 ~mode2~0 := 1; 1011#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 1042#L161 assume !(0 != ~mode3~0 % 256); 1036#L186 assume !(~r3~0 < 2); 1032#L186-1 ~mode3~0 := 1; 1030#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; 1029#L399 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1028#L400 assume ~st1~0 + ~nl1~0 <= 1; 1027#L401 assume ~st2~0 + ~nl2~0 <= 1; 1026#L402 assume ~st3~0 + ~nl3~0 <= 1; 1025#L403 assume !(~r1~0 >= 2); 926#L406 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 927#L407 assume ~r1~0 < 2; 1022#L412 assume !(~r1~0 >= 2); 995#L416 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 996#L417 assume ~r1~0 < 2;check_~tmp~1 := 1; 1004#L399-1 check_#res := check_~tmp~1; 959#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; 960#L529 assume !(0 == assert_~arg % 256); 986#L524 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 974#L499-2 [2020-11-29 19:00:34,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:34,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1849055478, now seen corresponding path program 2 times [2020-11-29 19:00:34,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:00:34,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375382076] [2020-11-29 19:00:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:00:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:00:35,017 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:00:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:00:35,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:00:35,127 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:00:35,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:35,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1099389211, now seen corresponding path program 1 times [2020-11-29 19:00:35,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:00:35,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249629463] [2020-11-29 19:00:35,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:00:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:00:35,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:00:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:00:35,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:00:35,157 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:00:35,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:35,158 INFO L82 PathProgramCache]: Analyzing trace with hash -951041978, now seen corresponding path program 1 times [2020-11-29 19:00:35,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:00:35,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590583039] [2020-11-29 19:00:35,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:00:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:00:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:00:35,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590583039] [2020-11-29 19:00:35,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:00:35,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:00:35,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555902053] [2020-11-29 19:00:35,705 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-11-29 19:00:36,080 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 110 [2020-11-29 19:00:36,092 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:00:36,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:00:36,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:00:36,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:00:36,094 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 19:00:36,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:36,094 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:00:36,094 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:00:36,094 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.1.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-11-29 19:00:36,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:00:36,095 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:00:36,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:36,920 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:00:36,921 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:36,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:00:36,940 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:36,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 19:00:36,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 19:00:37,113 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 19:00:37,115 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:00:37,115 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:00:37,115 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:00:37,115 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:00:37,115 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:00:37,115 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:37,115 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:00:37,115 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:00:37,115 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.1.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-11-29 19:00:37,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:00:37,116 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:00:37,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:37,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:00:38,004 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:00:38,018 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:00:38,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:00:38,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:00:38,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:00:38,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:00:38,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:00:38,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:00:38,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:00:38,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:00:38,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:00:38,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:00:38,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:00:38,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:00:38,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:00:38,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:00:38,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:00:38,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:00:38,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:00:38,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:00:38,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:00:38,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:00:38,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:00:38,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:00:38,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:00:38,104 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:00:38,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:00:38,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:00:38,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:00:38,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:00:38,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:00:38,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:00:38,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:00:38,137 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:00:38,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:00:38,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:00:38,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:00:38,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:00:38,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:00:38,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:00:38,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:00:38,192 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:00:38,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:00:38,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:00:38,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:00:38,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:00:38,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:00:38,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:00:38,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:00:38,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:00:38,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:00:38,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:00:38,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:00:38,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:00:38,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:00:38,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:00:38,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:00:38,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:00:38,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:00:38,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:00:38,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:00:38,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:00:38,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:00:38,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:00:38,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:00:38,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:00:38,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:00:38,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:00:38,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:00:38,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:00:38,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:00:38,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:00:38,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:00:38,387 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:00:38,398 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 19:00:38,398 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3860ea31-29f0-4153-841a-7460cddf0b28/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:00:38,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:00:38,413 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 19:00:38,413 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:00:38,414 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:00:38,457 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 19:00:38,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:00:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:00:38,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:00:38,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:00:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:00:38,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:00:38,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:00:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:00:38,808 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 [2020-11-29 19:00:38,809 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 171 states and 254 transitions. cyclomatic complexity: 84 Second operand 3 states. [2020-11-29 19:00:38,891 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 171 states and 254 transitions. cyclomatic complexity: 84. Second operand 3 states. Result 290 states and 439 transitions. Complement of second has 4 states. [2020-11-29 19:00:38,892 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 [2020-11-29 19:00:38,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:00:38,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-11-29 19:00:38,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 177 transitions. Stem has 39 letters. Loop has 29 letters. [2020-11-29 19:00:38,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:00:38,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 177 transitions. Stem has 68 letters. Loop has 29 letters. [2020-11-29 19:00:38,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:00:38,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 177 transitions. Stem has 39 letters. Loop has 58 letters. [2020-11-29 19:00:38,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:00:38,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 290 states and 439 transitions. [2020-11-29 19:00:38,903 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:00:38,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 290 states to 0 states and 0 transitions. [2020-11-29 19:00:38,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:00:38,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:00:38,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:00:38,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:00:38,904 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:00:38,904 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:00:38,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:00:38,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:00:38,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:00:38,905 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-29 19:00:38,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:00:38,905 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 19:00:38,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:00:38,905 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 19:00:38,905 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:00:38,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:00:38,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:00:38,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:00:38,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:00:38,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:00:38,906 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:00:38,906 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:00:38,906 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:00:38,906 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 19:00:38,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:00:38,907 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:00:38,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:00:38,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:00:38 BoogieIcfgContainer [2020-11-29 19:00:38,913 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:00:38,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:00:38,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:00:38,914 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:00:38,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:00:33" (3/4) ... [2020-11-29 19:00:38,918 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:00:38,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:00:38,920 INFO L168 Benchmark]: Toolchain (without parser) took 7580.86 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 78.7 MB in the beginning and 124.2 MB in the end (delta: -45.5 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:00:38,921 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 79.7 MB. Free memory was 36.9 MB in the beginning and 36.9 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:00:38,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.54 ms. Allocated memory is still 111.1 MB. Free memory was 78.5 MB in the beginning and 83.3 MB in the end (delta: -4.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:00:38,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.98 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 80.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:00:38,923 INFO L168 Benchmark]: Boogie Preprocessor took 99.69 ms. Allocated memory is still 111.1 MB. Free memory was 80.6 MB in the beginning and 78.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:00:38,924 INFO L168 Benchmark]: RCFGBuilder took 1162.81 ms. Allocated memory is still 111.1 MB. Free memory was 78.0 MB in the beginning and 82.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:00:38,925 INFO L168 Benchmark]: BuchiAutomizer took 5679.74 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 81.4 MB in the beginning and 125.3 MB in the end (delta: -43.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:00:38,925 INFO L168 Benchmark]: Witness Printer took 4.84 ms. Allocated memory is still 163.6 MB. Free memory was 125.3 MB in the beginning and 124.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:00:38,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 79.7 MB. Free memory was 36.9 MB in the beginning and 36.9 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 531.54 ms. Allocated memory is still 111.1 MB. Free memory was 78.5 MB in the beginning and 83.3 MB in the end (delta: -4.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.98 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 80.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.69 ms. Allocated memory is still 111.1 MB. Free memory was 80.6 MB in the beginning and 78.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1162.81 ms. Allocated memory is still 111.1 MB. Free memory was 78.0 MB in the beginning and 82.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5679.74 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 81.4 MB in the beginning and 125.3 MB in the end (delta: -43.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.84 ms. Allocated memory is still 163.6 MB. Free memory was 125.3 MB in the beginning and 124.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -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 5.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s 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, 354 SDslu, 1433 SDs, 0 SdLazy, 54 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital160 mio100 ax100 hnf98 lsp24 ukn100 mio100 lsp100 div168 bol100 ite100 ukn100 eq153 hnf75 smp100 dnf104 smp96 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...