./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/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 0fd888412d2d102cf82581b26a69e5b636c47e8e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:23:05,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:23:05,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:23:05,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:23:05,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:23:05,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:23:05,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:23:05,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:23:05,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:23:05,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:23:05,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:23:05,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:23:05,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:23:05,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:23:05,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:23:05,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:23:05,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:23:05,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:23:05,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:23:05,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:23:05,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:23:05,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:23:05,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:23:05,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:23:05,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:23:05,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:23:05,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:23:05,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:23:05,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:23:05,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:23:05,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:23:05,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:23:05,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:23:05,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:23:05,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:23:05,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:23:05,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:23:05,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:23:05,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:23:05,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:23:05,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:23:05,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:23:05,992 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:23:05,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:23:05,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:23:05,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:23:05,995 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:23:05,995 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:23:05,996 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:23:05,996 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:23:05,997 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:23:05,997 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:23:05,997 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:23:05,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:23:05,998 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:23:05,999 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:23:05,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:23:06,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:23:06,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:23:06,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:23:06,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:23:06,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:23:06,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:23:06,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:23:06,021 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:23:06,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:23:06,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:23:06,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:23:06,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:23:06,023 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:23:06,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:23:06,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:23:06,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:23:06,024 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:23:06,025 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:23:06,026 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_45ab1953-b1c6-4474-a16c-200f7de7e590/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fd888412d2d102cf82581b26a69e5b636c47e8e [2020-12-01 15:23:06,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:23:06,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:23:06,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:23:06,286 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:23:06,286 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:23:06,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-12-01 15:23:06,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/data/d35e21d9c/8f02e20edd2e4f3da0b3c8abb3344722/FLAGd3f080ee1 [2020-12-01 15:23:06,801 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:23:06,802 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-12-01 15:23:06,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/data/d35e21d9c/8f02e20edd2e4f3da0b3c8abb3344722/FLAGd3f080ee1 [2020-12-01 15:23:07,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/bin/uautomizer/data/d35e21d9c/8f02e20edd2e4f3da0b3c8abb3344722 [2020-12-01 15:23:07,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:23:07,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:23:07,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:23:07,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:23:07,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:23:07,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f549cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07, skipping insertion in model container [2020-12-01 15:23:07,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:23:07,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:23:07,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:23:07,582 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:23:07,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:23:07,703 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:23:07,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07 WrapperNode [2020-12-01 15:23:07,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:23:07,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:23:07,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:23:07,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:23:07,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:23:07,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:23:07,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:23:07,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:23:07,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... [2020-12-01 15:23:07,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:23:07,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:23:07,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:23:07,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:23:07,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/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 [2020-12-01 15:23:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:23:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:23:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:23:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:23:08,785 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:23:08,785 INFO L298 CfgBuilder]: Removed 25 assume(true) statements. [2020-12-01 15:23:08,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:23:08 BoogieIcfgContainer [2020-12-01 15:23:08,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:23:08,788 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:23:08,788 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:23:08,792 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:23:08,793 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:23:08,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:23:07" (1/3) ... [2020-12-01 15:23:08,794 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5babc4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:23:08, skipping insertion in model container [2020-12-01 15:23:08,794 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:23:08,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:23:07" (2/3) ... [2020-12-01 15:23:08,795 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5babc4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:23:08, skipping insertion in model container [2020-12-01 15:23:08,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:23:08,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:23:08" (3/3) ... [2020-12-01 15:23:08,797 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-12-01 15:23:08,850 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:23:08,850 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:23:08,851 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:23:08,851 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:23:08,851 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:23:08,851 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:23:08,851 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:23:08,851 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:23:08,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-12-01 15:23:08,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2020-12-01 15:23:08,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:23:08,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:23:08,902 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:23:08,902 INFO L854 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] [2020-12-01 15:23:08,902 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:23:08,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-12-01 15:23:08,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2020-12-01 15:23:08,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:23:08,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:23:08,912 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:23:08,912 INFO L854 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] [2020-12-01 15:23:08,919 INFO L794 eck$LassoCheckResult]: Stem: 42#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~nondet12, 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~ret33, main_#t~ret34, main_#t~post35, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet12;havoc main_#t~nondet12;~id1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~send1~0 := main_#t~nondet15;havoc main_#t~nondet15;~mode1~0 := main_#t~nondet16;havoc main_#t~nondet16;~id2~0 := main_#t~nondet17;havoc main_#t~nondet17;~st2~0 := main_#t~nondet18;havoc main_#t~nondet18;~send2~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode2~0 := main_#t~nondet20;havoc main_#t~nondet20;~id3~0 := main_#t~nondet21;havoc main_#t~nondet21;~st3~0 := main_#t~nondet22;havoc main_#t~nondet22;~send3~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode3~0 := main_#t~nondet24;havoc main_#t~nondet24;~id4~0 := main_#t~nondet25;havoc main_#t~nondet25;~st4~0 := main_#t~nondet26;havoc main_#t~nondet26;~send4~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode4~0 := main_#t~nondet28;havoc main_#t~nondet28;~id5~0 := main_#t~nondet29;havoc main_#t~nondet29;~st5~0 := main_#t~nondet30;havoc main_#t~nondet30;~send5~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode5~0 := main_#t~nondet32;havoc main_#t~nondet32;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 95#L196true assume !(0 == ~r1~0);init_~tmp~0 := 0; 93#L196-1true init_#res := init_~tmp~0; 9#L321true main_#t~ret33 := init_#res;main_~i2~0 := main_#t~ret33;havoc main_#t~ret33;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 43#L22true assume !(0 == assume_abort_if_not_~cond); 16#L21true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0 := 0; 68#L393-2true [2020-12-01 15:23:08,920 INFO L796 eck$LassoCheckResult]: Loop: 68#L393-2true assume !!(main_~i2~0 < 10);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 55#L71true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 87#L75true assume !(node1_~m1~0 != ~nomsg~0); 85#L75-1true ~mode1~0 := 0; 51#L71-2true havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 89#L97true assume !(0 != ~mode2~0 % 256); 49#L110true assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 45#L110-2true ~p2_new~0 := (if node2_#t~ite8 % 256 <= 127 then node2_#t~ite8 % 256 else node2_#t~ite8 % 256 - 256);havoc node2_#t~ite8;~mode2~0 := 1; 84#L97-2true havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 50#L122true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 35#L125true assume !(node3_~m3~0 != ~nomsg~0); 33#L125-1true ~mode3~0 := 0; 71#L122-2true havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 37#L147true assume !(0 != ~mode4~0 % 256); 17#L160true assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite10 := ~send4~0; 82#L160-2true ~p4_new~0 := (if node4_#t~ite10 % 256 <= 127 then node4_#t~ite10 % 256 else node4_#t~ite10 % 256 - 256);havoc node4_#t~ite10;~mode4~0 := 1; 32#L147-2true havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 46#L172true assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 3#L175true assume !(node5_~m5~0 != ~nomsg~0); 26#L175-1true ~mode5~0 := 0; 39#L172-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 15#L329true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1);check_~tmp~1 := 0; 18#L329-1true check_#res := check_~tmp~1; 65#L349true main_#t~ret34 := check_#res;main_~c1~0 := main_#t~ret34;havoc main_#t~ret34;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 91#L423true assume !(0 == assert_~arg % 256); 53#L418true main_#t~post35 := main_~i2~0;main_~i2~0 := 1 + main_#t~post35;havoc main_#t~post35; 68#L393-2true [2020-12-01 15:23:08,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:08,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1978587388, now seen corresponding path program 1 times [2020-12-01 15:23:08,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:23:08,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222167696] [2020-12-01 15:23:08,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:23:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:23:09,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:23:09,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222167696] [2020-12-01 15:23:09,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:23:09,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:23:09,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552158571] [2020-12-01 15:23:09,247 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:23:09,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:09,251 INFO L82 PathProgramCache]: Analyzing trace with hash 563454822, now seen corresponding path program 1 times [2020-12-01 15:23:09,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:23:09,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180132882] [2020-12-01 15:23:09,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:23:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:23:09,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:23:09,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180132882] [2020-12-01 15:23:09,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:23:09,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:23:09,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160970119] [2020-12-01 15:23:09,496 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:23:09,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:23:09,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:23:09,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:23:09,517 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 5 states. [2020-12-01 15:23:09,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:23:09,698 INFO L93 Difference]: Finished difference Result 95 states and 155 transitions. [2020-12-01 15:23:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:23:09,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 155 transitions. [2020-12-01 15:23:09,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-12-01 15:23:09,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 87 states and 117 transitions. [2020-12-01 15:23:09,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2020-12-01 15:23:09,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 87 [2020-12-01 15:23:09,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 117 transitions. [2020-12-01 15:23:09,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:23:09,726 INFO L692 BuchiCegarLoop]: Abstraction has 87 states and 117 transitions. [2020-12-01 15:23:09,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 117 transitions. [2020-12-01 15:23:09,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-12-01 15:23:09,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-12-01 15:23:09,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 117 transitions. [2020-12-01 15:23:09,771 INFO L715 BuchiCegarLoop]: Abstraction has 87 states and 117 transitions. [2020-12-01 15:23:09,772 INFO L595 BuchiCegarLoop]: Abstraction has 87 states and 117 transitions. [2020-12-01 15:23:09,772 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:23:09,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 117 transitions. [2020-12-01 15:23:09,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-12-01 15:23:09,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:23:09,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:23:09,781 INFO L853 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] [2020-12-01 15:23:09,781 INFO L854 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] [2020-12-01 15:23:09,781 INFO L794 eck$LassoCheckResult]: Stem: 263#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0; 225#L-1 havoc main_#res;havoc main_#t~nondet12, 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~ret33, main_#t~ret34, main_#t~post35, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet12;havoc main_#t~nondet12;~id1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~send1~0 := main_#t~nondet15;havoc main_#t~nondet15;~mode1~0 := main_#t~nondet16;havoc main_#t~nondet16;~id2~0 := main_#t~nondet17;havoc main_#t~nondet17;~st2~0 := main_#t~nondet18;havoc main_#t~nondet18;~send2~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode2~0 := main_#t~nondet20;havoc main_#t~nondet20;~id3~0 := main_#t~nondet21;havoc main_#t~nondet21;~st3~0 := main_#t~nondet22;havoc main_#t~nondet22;~send3~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode3~0 := main_#t~nondet24;havoc main_#t~nondet24;~id4~0 := main_#t~nondet25;havoc main_#t~nondet25;~st4~0 := main_#t~nondet26;havoc main_#t~nondet26;~send4~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode4~0 := main_#t~nondet28;havoc main_#t~nondet28;~id5~0 := main_#t~nondet29;havoc main_#t~nondet29;~st5~0 := main_#t~nondet30;havoc main_#t~nondet30;~send5~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode5~0 := main_#t~nondet32;havoc main_#t~nondet32;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 226#L196 assume 0 == ~r1~0; 211#L197 assume ~id1~0 >= 0; 212#L198 assume 0 == ~st1~0; 249#L199 assume ~send1~0 == ~id1~0; 278#L200 assume 0 == ~mode1~0 % 256; 221#L201 assume ~id2~0 >= 0; 222#L202 assume 0 == ~st2~0; 284#L203 assume ~send2~0 == ~id2~0; 238#L204 assume 0 == ~mode2~0 % 256; 239#L205 assume ~id3~0 >= 0; 268#L206 assume 0 == ~st3~0; 288#L207 assume ~send3~0 == ~id3~0; 213#L208 assume 0 == ~mode3~0 % 256; 214#L209 assume ~id4~0 >= 0; 250#L210 assume 0 == ~st4~0; 279#L211 assume ~send4~0 == ~id4~0; 223#L212 assume 0 == ~mode4~0 % 256; 224#L213 assume ~id5~0 >= 0; 285#L214 assume 0 == ~st5~0; 240#L215 assume ~send5~0 == ~id5~0; 241#L216 assume 0 == ~mode5~0 % 256; 269#L217 assume ~id1~0 != ~id2~0; 289#L218 assume ~id1~0 != ~id3~0; 215#L219 assume ~id1~0 != ~id4~0; 216#L220 assume ~id1~0 != ~id5~0; 253#L221 assume ~id2~0 != ~id3~0; 280#L222 assume ~id2~0 != ~id4~0; 261#L223 assume ~id2~0 != ~id5~0; 262#L224 assume ~id3~0 != ~id4~0; 286#L225 assume ~id3~0 != ~id5~0; 242#L226 assume ~id4~0 != ~id5~0;init_~tmp~0 := 1; 243#L196-1 init_#res := init_~tmp~0; 218#L321 main_#t~ret33 := init_#res;main_~i2~0 := main_#t~ret33;havoc main_#t~ret33;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 219#L22 assume !(0 == assume_abort_if_not_~cond); 230#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0 := 0; 231#L393-2 [2020-12-01 15:23:09,782 INFO L796 eck$LassoCheckResult]: Loop: 231#L393-2 assume !!(main_~i2~0 < 10);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 275#L71 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 276#L75 assume !(node1_~m1~0 != ~nomsg~0); 236#L75-1 ~mode1~0 := 0; 258#L71-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 272#L97 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 290#L100 assume !(node2_~m2~0 != ~nomsg~0); 282#L100-1 ~mode2~0 := 0; 266#L97-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 271#L122 assume !(0 != ~mode3~0 % 256); 217#L135 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 209#L135-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 210#L122-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 259#L147 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 260#L150 assume !(node4_~m4~0 != ~nomsg~0); 246#L150-1 ~mode4~0 := 0; 251#L147-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 252#L172 assume !(0 != ~mode5~0 % 256); 267#L185 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 292#L185-2 ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 244#L172-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 227#L329 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1);check_~tmp~1 := 0; 228#L329-1 check_#res := check_~tmp~1; 234#L349 main_#t~ret34 := check_#res;main_~c1~0 := main_#t~ret34;havoc main_#t~ret34;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 287#L423 assume !(0 == assert_~arg % 256); 274#L418 main_#t~post35 := main_~i2~0;main_~i2~0 := 1 + main_#t~post35;havoc main_#t~post35; 231#L393-2 [2020-12-01 15:23:09,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:09,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1992034189, now seen corresponding path program 1 times [2020-12-01 15:23:09,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:23:09,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957331994] [2020-12-01 15:23:09,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:23:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:23:09,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:23:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:23:09,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:23:09,971 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:23:09,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:09,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1789393254, now seen corresponding path program 1 times [2020-12-01 15:23:09,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:23:09,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448401437] [2020-12-01 15:23:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:23:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:23:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:23:10,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448401437] [2020-12-01 15:23:10,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:23:10,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:23:10,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013151637] [2020-12-01 15:23:10,098 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:23:10,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:23:10,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:23:10,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:23:10,105 INFO L87 Difference]: Start difference. First operand 87 states and 117 transitions. cyclomatic complexity: 31 Second operand 5 states. [2020-12-01 15:23:10,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:23:10,183 INFO L93 Difference]: Finished difference Result 90 states and 119 transitions. [2020-12-01 15:23:10,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:23:10,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 119 transitions. [2020-12-01 15:23:10,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-12-01 15:23:10,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 114 transitions. [2020-12-01 15:23:10,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2020-12-01 15:23:10,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 87 [2020-12-01 15:23:10,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 114 transitions. [2020-12-01 15:23:10,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:23:10,190 INFO L692 BuchiCegarLoop]: Abstraction has 87 states and 114 transitions. [2020-12-01 15:23:10,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 114 transitions. [2020-12-01 15:23:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-12-01 15:23:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-12-01 15:23:10,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2020-12-01 15:23:10,200 INFO L715 BuchiCegarLoop]: Abstraction has 87 states and 114 transitions. [2020-12-01 15:23:10,200 INFO L595 BuchiCegarLoop]: Abstraction has 87 states and 114 transitions. [2020-12-01 15:23:10,200 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:23:10,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 114 transitions. [2020-12-01 15:23:10,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-12-01 15:23:10,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:23:10,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:23:10,207 INFO L853 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] [2020-12-01 15:23:10,207 INFO L854 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] [2020-12-01 15:23:10,207 INFO L794 eck$LassoCheckResult]: Stem: 452#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0; 414#L-1 havoc main_#res;havoc main_#t~nondet12, 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~ret33, main_#t~ret34, main_#t~post35, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet12;havoc main_#t~nondet12;~id1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~send1~0 := main_#t~nondet15;havoc main_#t~nondet15;~mode1~0 := main_#t~nondet16;havoc main_#t~nondet16;~id2~0 := main_#t~nondet17;havoc main_#t~nondet17;~st2~0 := main_#t~nondet18;havoc main_#t~nondet18;~send2~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode2~0 := main_#t~nondet20;havoc main_#t~nondet20;~id3~0 := main_#t~nondet21;havoc main_#t~nondet21;~st3~0 := main_#t~nondet22;havoc main_#t~nondet22;~send3~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode3~0 := main_#t~nondet24;havoc main_#t~nondet24;~id4~0 := main_#t~nondet25;havoc main_#t~nondet25;~st4~0 := main_#t~nondet26;havoc main_#t~nondet26;~send4~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode4~0 := main_#t~nondet28;havoc main_#t~nondet28;~id5~0 := main_#t~nondet29;havoc main_#t~nondet29;~st5~0 := main_#t~nondet30;havoc main_#t~nondet30;~send5~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode5~0 := main_#t~nondet32;havoc main_#t~nondet32;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 415#L196 assume 0 == ~r1~0; 398#L197 assume ~id1~0 >= 0; 399#L198 assume 0 == ~st1~0; 438#L199 assume ~send1~0 == ~id1~0; 464#L200 assume 0 == ~mode1~0 % 256; 410#L201 assume ~id2~0 >= 0; 411#L202 assume 0 == ~st2~0; 473#L203 assume ~send2~0 == ~id2~0; 424#L204 assume 0 == ~mode2~0 % 256; 425#L205 assume ~id3~0 >= 0; 457#L206 assume 0 == ~st3~0; 477#L207 assume ~send3~0 == ~id3~0; 402#L208 assume 0 == ~mode3~0 % 256; 403#L209 assume ~id4~0 >= 0; 439#L210 assume 0 == ~st4~0; 468#L211 assume ~send4~0 == ~id4~0; 412#L212 assume 0 == ~mode4~0 % 256; 413#L213 assume ~id5~0 >= 0; 474#L214 assume 0 == ~st5~0; 429#L215 assume ~send5~0 == ~id5~0; 430#L216 assume 0 == ~mode5~0 % 256; 458#L217 assume ~id1~0 != ~id2~0; 478#L218 assume ~id1~0 != ~id3~0; 404#L219 assume ~id1~0 != ~id4~0; 405#L220 assume ~id1~0 != ~id5~0; 442#L221 assume ~id2~0 != ~id3~0; 469#L222 assume ~id2~0 != ~id4~0; 450#L223 assume ~id2~0 != ~id5~0; 451#L224 assume ~id3~0 != ~id4~0; 475#L225 assume ~id3~0 != ~id5~0; 431#L226 assume ~id4~0 != ~id5~0;init_~tmp~0 := 1; 432#L196-1 init_#res := init_~tmp~0; 407#L321 main_#t~ret33 := init_#res;main_~i2~0 := main_#t~ret33;havoc main_#t~ret33;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 408#L22 assume !(0 == assume_abort_if_not_~cond); 418#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0 := 0; 419#L393-2 [2020-12-01 15:23:10,207 INFO L796 eck$LassoCheckResult]: Loop: 419#L393-2 assume !!(main_~i2~0 < 10);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 465#L71 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 466#L75 assume !(node1_~m1~0 != ~nomsg~0); 427#L75-1 ~mode1~0 := 0; 447#L71-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 462#L97 assume !(0 != ~mode2~0 % 256); 459#L110 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 454#L110-2 ~p2_new~0 := (if node2_#t~ite8 % 256 <= 127 then node2_#t~ite8 % 256 else node2_#t~ite8 % 256 - 256);havoc node2_#t~ite8;~mode2~0 := 1; 455#L97-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 460#L122 assume !(0 != ~mode3~0 % 256); 406#L135 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 400#L135-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 401#L122-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 448#L147 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 449#L150 assume !(node4_~m4~0 != ~nomsg~0); 435#L150-1 ~mode4~0 := 0; 440#L147-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 441#L172 assume !(0 != ~mode5~0 % 256); 456#L185 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 481#L185-2 ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 433#L172-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 416#L329 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1; 417#L330 assume ~r1~0 >= 5; 437#L334 assume ~r1~0 < 5;check_~tmp~1 := 1; 422#L329-1 check_#res := check_~tmp~1; 423#L349 main_#t~ret34 := check_#res;main_~c1~0 := main_#t~ret34;havoc main_#t~ret34;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 476#L423 assume !(0 == assert_~arg % 256); 463#L418 main_#t~post35 := main_~i2~0;main_~i2~0 := 1 + main_#t~post35;havoc main_#t~post35; 419#L393-2 [2020-12-01 15:23:10,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:10,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1992034189, now seen corresponding path program 2 times [2020-12-01 15:23:10,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:23:10,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134404170] [2020-12-01 15:23:10,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:23:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:23:10,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:23:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:23:10,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:23:10,298 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:23:10,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:10,299 INFO L82 PathProgramCache]: Analyzing trace with hash -149729460, now seen corresponding path program 1 times [2020-12-01 15:23:10,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:23:10,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151458331] [2020-12-01 15:23:10,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:23:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:23:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:23:10,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151458331] [2020-12-01 15:23:10,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:23:10,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:23:10,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767915252] [2020-12-01 15:23:10,374 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:23:10,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:23:10,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:23:10,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:23:10,376 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. cyclomatic complexity: 28 Second operand 3 states. [2020-12-01 15:23:10,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:23:10,419 INFO L93 Difference]: Finished difference Result 131 states and 180 transitions. [2020-12-01 15:23:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:23:10,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 131 states and 180 transitions. [2020-12-01 15:23:10,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 94 [2020-12-01 15:23:10,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 131 states to 131 states and 180 transitions. [2020-12-01 15:23:10,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 131 [2020-12-01 15:23:10,434 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 131 [2020-12-01 15:23:10,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 180 transitions. [2020-12-01 15:23:10,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:23:10,440 INFO L692 BuchiCegarLoop]: Abstraction has 131 states and 180 transitions. [2020-12-01 15:23:10,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 180 transitions. [2020-12-01 15:23:10,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-12-01 15:23:10,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-01 15:23:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 180 transitions. [2020-12-01 15:23:10,451 INFO L715 BuchiCegarLoop]: Abstraction has 131 states and 180 transitions. [2020-12-01 15:23:10,452 INFO L595 BuchiCegarLoop]: Abstraction has 131 states and 180 transitions. [2020-12-01 15:23:10,452 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 15:23:10,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 180 transitions. [2020-12-01 15:23:10,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 94 [2020-12-01 15:23:10,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:23:10,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:23:10,455 INFO L853 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] [2020-12-01 15:23:10,455 INFO L854 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] [2020-12-01 15:23:10,456 INFO L794 eck$LassoCheckResult]: Stem: 679#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0; 638#L-1 havoc main_#res;havoc main_#t~nondet12, 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~ret33, main_#t~ret34, main_#t~post35, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet12;havoc main_#t~nondet12;~id1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~send1~0 := main_#t~nondet15;havoc main_#t~nondet15;~mode1~0 := main_#t~nondet16;havoc main_#t~nondet16;~id2~0 := main_#t~nondet17;havoc main_#t~nondet17;~st2~0 := main_#t~nondet18;havoc main_#t~nondet18;~send2~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode2~0 := main_#t~nondet20;havoc main_#t~nondet20;~id3~0 := main_#t~nondet21;havoc main_#t~nondet21;~st3~0 := main_#t~nondet22;havoc main_#t~nondet22;~send3~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode3~0 := main_#t~nondet24;havoc main_#t~nondet24;~id4~0 := main_#t~nondet25;havoc main_#t~nondet25;~st4~0 := main_#t~nondet26;havoc main_#t~nondet26;~send4~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode4~0 := main_#t~nondet28;havoc main_#t~nondet28;~id5~0 := main_#t~nondet29;havoc main_#t~nondet29;~st5~0 := main_#t~nondet30;havoc main_#t~nondet30;~send5~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode5~0 := main_#t~nondet32;havoc main_#t~nondet32;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 639#L196 assume 0 == ~r1~0; 624#L197 assume ~id1~0 >= 0; 625#L198 assume 0 == ~st1~0; 662#L199 assume ~send1~0 == ~id1~0; 695#L200 assume 0 == ~mode1~0 % 256; 634#L201 assume ~id2~0 >= 0; 635#L202 assume 0 == ~st2~0; 702#L203 assume ~send2~0 == ~id2~0; 651#L204 assume 0 == ~mode2~0 % 256; 652#L205 assume ~id3~0 >= 0; 684#L206 assume 0 == ~st3~0; 707#L207 assume ~send3~0 == ~id3~0; 626#L208 assume 0 == ~mode3~0 % 256; 627#L209 assume ~id4~0 >= 0; 665#L210 assume 0 == ~st4~0; 696#L211 assume ~send4~0 == ~id4~0; 636#L212 assume 0 == ~mode4~0 % 256; 637#L213 assume ~id5~0 >= 0; 703#L214 assume 0 == ~st5~0; 653#L215 assume ~send5~0 == ~id5~0; 654#L216 assume 0 == ~mode5~0 % 256; 685#L217 assume ~id1~0 != ~id2~0; 708#L218 assume ~id1~0 != ~id3~0; 628#L219 assume ~id1~0 != ~id4~0; 629#L220 assume ~id1~0 != ~id5~0; 666#L221 assume ~id2~0 != ~id3~0; 697#L222 assume ~id2~0 != ~id4~0; 675#L223 assume ~id2~0 != ~id5~0; 676#L224 assume ~id3~0 != ~id4~0; 704#L225 assume ~id3~0 != ~id5~0; 655#L226 assume ~id4~0 != ~id5~0;init_~tmp~0 := 1; 656#L196-1 init_#res := init_~tmp~0; 631#L321 main_#t~ret33 := init_#res;main_~i2~0 := main_#t~ret33;havoc main_#t~ret33;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 632#L22 assume !(0 == assume_abort_if_not_~cond); 642#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0 := 0; 643#L393-2 [2020-12-01 15:23:10,456 INFO L796 eck$LassoCheckResult]: Loop: 643#L393-2 assume !!(main_~i2~0 < 10);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 692#L71 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 693#L75 assume !(node1_~m1~0 != ~nomsg~0); 649#L75-1 ~mode1~0 := 0; 671#L71-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 688#L97 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 709#L100 assume !(node2_~m2~0 != ~nomsg~0); 699#L100-1 ~mode2~0 := 0; 682#L97-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 687#L122 assume !(0 != ~mode3~0 % 256); 630#L135 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 622#L135-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 623#L122-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 672#L147 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 673#L150 assume !(node4_~m4~0 != ~nomsg~0); 659#L150-1 ~mode4~0 := 0; 663#L147-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 664#L172 assume !(0 != ~mode5~0 % 256); 683#L185 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 711#L185-2 ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 657#L172-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 640#L329 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1; 641#L330 assume !(~r1~0 >= 5); 660#L333 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0; 661#L334 assume ~r1~0 < 5;check_~tmp~1 := 1; 646#L329-1 check_#res := check_~tmp~1; 647#L349 main_#t~ret34 := check_#res;main_~c1~0 := main_#t~ret34;havoc main_#t~ret34;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 705#L423 assume !(0 == assert_~arg % 256); 691#L418 main_#t~post35 := main_~i2~0;main_~i2~0 := 1 + main_#t~post35;havoc main_#t~post35; 643#L393-2 [2020-12-01 15:23:10,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:10,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1992034189, now seen corresponding path program 3 times [2020-12-01 15:23:10,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:23:10,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496271705] [2020-12-01 15:23:10,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:23:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:23:10,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:23:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:23:10,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:23:10,525 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:23:10,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:10,529 INFO L82 PathProgramCache]: Analyzing trace with hash -615687493, now seen corresponding path program 1 times [2020-12-01 15:23:10,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:23:10,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601802707] [2020-12-01 15:23:10,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:23:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:23:10,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:23:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:23:10,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:23:10,585 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:23:10,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:10,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1880149897, now seen corresponding path program 1 times [2020-12-01 15:23:10,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:23:10,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529794832] [2020-12-01 15:23:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:23:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:23:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:23:10,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529794832] [2020-12-01 15:23:10,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:23:10,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:23:10,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934022418] [2020-12-01 15:23:11,374 WARN L197 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-12-01 15:23:12,068 WARN L197 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2020-12-01 15:23:12,079 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:23:12,080 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:23:12,080 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:23:12,080 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:23:12,080 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:23:12,080 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:23:12,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:23:12,081 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:23:12,081 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.5.ufo.BOUNDED-10.pals.c_Iteration4_Loop [2020-12-01 15:23:12,081 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:23:12,081 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:23:12,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,357 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-12-01 15:23:12,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:12,801 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-01 15:23:13,020 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-12-01 15:23:20,033 WARN L197 SmtUtils]: Spent 6.98 s on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-12-01 15:23:20,261 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:23:20,262 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/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) [2020-12-01 15:23:20,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:23:20,275 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/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) [2020-12-01 15:23:20,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:23:20,332 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:23:20,489 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:23:20,491 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:23:20,492 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:23:20,492 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:23:20,492 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:23:20,492 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:23:20,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:23:20,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:23:20,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:23:20,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.5.ufo.BOUNDED-10.pals.c_Iteration4_Loop [2020-12-01 15:23:20,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:23:20,492 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:23:20,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,730 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-12-01 15:23:20,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:20,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:23:21,115 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-01 15:23:21,270 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-12-01 15:23:27,734 WARN L197 SmtUtils]: Spent 6.40 s on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-12-01 15:23:27,894 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:23:27,898 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:23:27,908 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 [2020-12-01 15:23:27,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:23:27,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:23:27,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:23:27,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:23:27,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:23:27,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:23:27,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:23:27,916 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/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 [2020-12-01 15:23:27,936 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 [2020-12-01 15:23:27,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:23:27,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:23:27,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:23:27,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:23:27,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:23:27,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:23:27,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:23:27,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45ab1953-b1c6-4474-a16c-200f7de7e590/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) [2020-12-01 15:23:28,009 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 [2020-12-01 15:23:28,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:23:28,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:23:28,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:23:28,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:23:28,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:23:28,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:23:28,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:23:28,040 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:23:28,058 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:23:28,058 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_45ab1953-b1c6-4474-a16c-200f7de7e590/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) [2020-12-01 15:23:28,070 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:23:28,070 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:23:28,070 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:23:28,071 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 19 Supporting invariants [] Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:23:28,102 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:23:28,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:23:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:23:28,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:23:28,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:23:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:23:28,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:23:28,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:23:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:23:28,395 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 [2020-12-01 15:23:28,396 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 131 states and 180 transitions. cyclomatic complexity: 50 Second operand 3 states. [2020-12-01 15:23:28,445 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 131 states and 180 transitions. cyclomatic complexity: 50. Second operand 3 states. Result 224 states and 323 transitions. Complement of second has 4 states. [2020-12-01 15:23:28,446 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 [2020-12-01 15:23:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:23:28,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2020-12-01 15:23:28,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 114 transitions. Stem has 37 letters. Loop has 29 letters. [2020-12-01 15:23:28,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:23:28,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 114 transitions. Stem has 66 letters. Loop has 29 letters. [2020-12-01 15:23:28,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:23:28,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 114 transitions. Stem has 37 letters. Loop has 58 letters. [2020-12-01 15:23:28,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:23:28,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 323 transitions. [2020-12-01 15:23:28,455 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:23:28,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 0 states and 0 transitions. [2020-12-01 15:23:28,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:23:28,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:23:28,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:23:28,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:23:28,456 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:23:28,456 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:23:28,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:23:28,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:23:28,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:23:28,457 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-12-01 15:23:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:23:28,458 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-12-01 15:23:28,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:23:28,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-12-01 15:23:28,458 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:23:28,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:23:28,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:23:28,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:23:28,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:23:28,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:23:28,459 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:23:28,459 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:23:28,459 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:23:28,459 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-12-01 15:23:28,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:23:28,459 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:23:28,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:23:28,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:23:28 BoogieIcfgContainer [2020-12-01 15:23:28,465 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:23:28,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:23:28,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:23:28,466 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:23:28,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:23:08" (3/4) ... [2020-12-01 15:23:28,469 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:23:28,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:23:28,470 INFO L168 Benchmark]: Toolchain (without parser) took 21311.92 ms. Allocated memory was 81.8 MB in the beginning and 314.6 MB in the end (delta: 232.8 MB). Free memory was 40.9 MB in the beginning and 150.1 MB in the end (delta: -109.2 MB). Peak memory consumption was 123.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:23:28,471 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:23:28,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.73 ms. Allocated memory was 81.8 MB in the beginning and 138.4 MB in the end (delta: 56.6 MB). Free memory was 40.7 MB in the beginning and 104.8 MB in the end (delta: -64.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:23:28,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.66 ms. Allocated memory is still 138.4 MB. Free memory was 104.8 MB in the beginning and 102.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:23:28,473 INFO L168 Benchmark]: Boogie Preprocessor took 71.60 ms. Allocated memory is still 138.4 MB. Free memory was 102.7 MB in the beginning and 100.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:23:28,473 INFO L168 Benchmark]: RCFGBuilder took 918.57 ms. Allocated memory is still 138.4 MB. Free memory was 100.6 MB in the beginning and 62.4 MB in the end (delta: 38.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:23:28,474 INFO L168 Benchmark]: BuchiAutomizer took 19676.94 ms. Allocated memory was 138.4 MB in the beginning and 314.6 MB in the end (delta: 176.2 MB). Free memory was 62.4 MB in the beginning and 151.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 89.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:23:28,475 INFO L168 Benchmark]: Witness Printer took 3.72 ms. Allocated memory is still 314.6 MB. Free memory was 151.2 MB in the beginning and 150.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:23:28,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 546.73 ms. Allocated memory was 81.8 MB in the beginning and 138.4 MB in the end (delta: 56.6 MB). Free memory was 40.7 MB in the beginning and 104.8 MB in the end (delta: -64.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.66 ms. Allocated memory is still 138.4 MB. Free memory was 104.8 MB in the beginning and 102.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.60 ms. Allocated memory is still 138.4 MB. Free memory was 102.7 MB in the beginning and 100.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 918.57 ms. Allocated memory is still 138.4 MB. Free memory was 100.6 MB in the beginning and 62.4 MB in the end (delta: 38.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 19676.94 ms. Allocated memory was 138.4 MB in the beginning and 314.6 MB in the end (delta: 176.2 MB). Free memory was 62.4 MB in the beginning and 151.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 89.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.72 ms. Allocated memory is still 314.6 MB. Free memory was 151.2 MB in the beginning and 150.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 19 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 19.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 18.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 131 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 550 SDtfs, 258 SDslu, 937 SDs, 0 SdLazy, 36 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital216 mio100 ax100 hnf100 lsp74 ukn69 mio100 lsp100 div155 bol100 ite100 ukn100 eq175 hnf71 smp100 dnf5255 smp24 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...