./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/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 c04426d74483d0d0e434f9bca5b44597463ac642 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:01:07,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:01:07,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:07,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:07,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:07,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:07,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:07,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:07,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:07,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:07,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:07,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:07,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:07,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:07,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:07,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:07,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:07,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:07,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:07,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:07,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:07,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:07,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:07,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:07,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:07,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:07,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:07,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:07,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:07,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:07,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:07,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:07,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:07,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:07,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:07,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:07,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:07,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:07,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:07,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:07,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:07,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:01:07,899 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:07,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:07,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:07,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:07,902 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:07,902 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:01:07,902 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:01:07,902 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:01:07,902 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:01:07,903 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:01:07,904 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:01:07,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:07,905 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:07,905 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:01:07,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:01:07,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:07,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:07,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:01:07,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:01:07,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:01:07,910 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:07,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:01:07,911 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:01:07,911 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:07,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:01:07,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:07,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:07,912 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:01:07,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:07,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:01:07,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:07,913 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:01:07,914 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:01:07,914 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_8e829aff-b666-45a5-9069-09747cb4a54b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c04426d74483d0d0e434f9bca5b44597463ac642 [2020-11-28 03:01:08,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:08,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:08,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:08,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:08,188 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:08,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2020-11-28 03:01:08,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/data/c715cb374/1e1d277518404e4882573e0b8eb794d9/FLAG102989ab5 [2020-11-28 03:01:08,716 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:08,717 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2020-11-28 03:01:08,727 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/data/c715cb374/1e1d277518404e4882573e0b8eb794d9/FLAG102989ab5 [2020-11-28 03:01:09,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/data/c715cb374/1e1d277518404e4882573e0b8eb794d9 [2020-11-28 03:01:09,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:09,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:01:09,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:09,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:09,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:09,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d02454c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09, skipping insertion in model container [2020-11-28 03:01:09,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:09,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:09,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:09,394 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:09,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:09,528 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:09,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09 WrapperNode [2020-11-28 03:01:09,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:09,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:09,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:01:09,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:01:09,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:09,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:09,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:09,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:09,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... [2020-11-28 03:01:09,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:09,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:09,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:09,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:09,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:01:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:01:10,624 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:01:10,624 INFO L298 CfgBuilder]: Removed 27 assume(true) statements. [2020-11-28 03:01:10,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:10 BoogieIcfgContainer [2020-11-28 03:01:10,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:01:10,631 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:01:10,632 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:01:10,635 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:01:10,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:01:10,636 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:01:09" (1/3) ... [2020-11-28 03:01:10,637 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dec5a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:01:10, skipping insertion in model container [2020-11-28 03:01:10,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:01:10,638 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:09" (2/3) ... [2020-11-28 03:01:10,638 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dec5a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:01:10, skipping insertion in model container [2020-11-28 03:01:10,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:01:10,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:10" (3/3) ... [2020-11-28 03:01:10,642 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2020-11-28 03:01:10,689 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:01:10,689 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:01:10,690 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:01:10,690 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:01:10,690 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:01:10,690 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:01:10,690 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:01:10,690 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:01:10,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2020-11-28 03:01:10,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 60 [2020-11-28 03:01:10,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:01:10,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:01:10,764 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:10,765 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:10,765 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:01:10,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2020-11-28 03:01:10,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 60 [2020-11-28 03:01:10,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:01:10,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:01:10,782 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:10,783 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:10,790 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[4 := #funAddr~node5.base], ~nodes~0.offset[4 := #funAddr~node5.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[5 := #funAddr~node6.base], ~nodes~0.offset[5 := #funAddr~node6.offset]; 8#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 32#L232true assume !(0 == ~r1~0);init_~tmp~0 := 0; 30#L232-1true init_#res := init_~tmp~0; 93#L393true main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 82#L22true assume !(0 == assume_abort_if_not_~cond); 11#L21true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 60#L471-2true [2020-11-28 03:01:10,797 INFO L796 eck$LassoCheckResult]: Loop: 60#L471-2true assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 43#L78true assume !(0 != ~mode1~0 % 256); 50#L94true assume !(~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0);node1_#t~ite7 := ~p1_new~0; 48#L94-2true ~p1_new~0 := (if node1_#t~ite7 % 256 <= 127 then node1_#t~ite7 % 256 else node1_#t~ite7 % 256 - 256);havoc node1_#t~ite7;~mode1~0 := 1; 41#L78-2true havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 22#L106true assume !(0 != ~mode2~0 % 256); 54#L119true assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 52#L119-2true ~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; 7#L106-2true havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 16#L131true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 101#L134true assume !(node3_~m3~0 != ~nomsg~0); 100#L134-1true ~mode3~0 := 0; 12#L131-2true havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 102#L156true assume !(0 != ~mode4~0 % 256); 21#L169true assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite10 := ~send4~0; 19#L169-2true ~p4_new~0 := (if node4_#t~ite10 % 256 <= 127 then node4_#t~ite10 % 256 else node4_#t~ite10 % 256 - 256);havoc node4_#t~ite10;~mode4~0 := 1; 99#L156-2true havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 106#L181true assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 96#L184true assume !(node5_~m5~0 != ~nomsg~0); 95#L184-1true ~mode5~0 := 0; 91#L181-2true havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 97#L206true assume !(0 != ~mode6~0 % 256); 3#L219true assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 17#L219-2true ~p6_new~0 := (if node6_#t~ite12 % 256 <= 127 then node6_#t~ite12 % 256 else node6_#t~ite12 % 256 - 256);havoc node6_#t~ite12;~mode6~0 := 1; 94#L206-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 110#L401true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1 := 0; 112#L401-1true check_#res := check_~tmp~1; 84#L421true main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 57#L504true assume !(0 == assert_~arg % 256); 37#L499true main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 60#L471-2true [2020-11-28 03:01:10,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:10,808 INFO L82 PathProgramCache]: Analyzing trace with hash 2030119858, now seen corresponding path program 1 times [2020-11-28 03:01:10,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:10,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186342370] [2020-11-28 03:01:10,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:11,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186342370] [2020-11-28 03:01:11,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:11,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:11,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031467570] [2020-11-28 03:01:11,085 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:01:11,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:11,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1634489237, now seen corresponding path program 1 times [2020-11-28 03:01:11,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:11,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108262664] [2020-11-28 03:01:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:11,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108262664] [2020-11-28 03:01:11,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:11,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:11,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779917964] [2020-11-28 03:01:11,277 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 03:01:11,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:11,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:01:11,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:11,296 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 5 states. [2020-11-28 03:01:11,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:11,461 INFO L93 Difference]: Finished difference Result 112 states and 186 transitions. [2020-11-28 03:01:11,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:01:11,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 186 transitions. [2020-11-28 03:01:11,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2020-11-28 03:01:11,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 104 states and 139 transitions. [2020-11-28 03:01:11,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2020-11-28 03:01:11,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2020-11-28 03:01:11,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 139 transitions. [2020-11-28 03:01:11,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:01:11,477 INFO L691 BuchiCegarLoop]: Abstraction has 104 states and 139 transitions. [2020-11-28 03:01:11,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 139 transitions. [2020-11-28 03:01:11,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-11-28 03:01:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-28 03:01:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2020-11-28 03:01:11,510 INFO L714 BuchiCegarLoop]: Abstraction has 104 states and 139 transitions. [2020-11-28 03:01:11,510 INFO L594 BuchiCegarLoop]: Abstraction has 104 states and 139 transitions. [2020-11-28 03:01:11,510 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:01:11,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 139 transitions. [2020-11-28 03:01:11,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2020-11-28 03:01:11,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:01:11,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:01:11,515 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:11,515 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:11,516 INFO L794 eck$LassoCheckResult]: Stem: 336#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[4 := #funAddr~node5.base], ~nodes~0.offset[4 := #funAddr~node5.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[5 := #funAddr~node6.base], ~nodes~0.offset[5 := #funAddr~node6.offset]; 250#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 251#L232 assume 0 == ~r1~0; 292#L233 assume ~id1~0 >= 0; 334#L234 assume 0 == ~st1~0; 298#L235 assume ~send1~0 == ~id1~0; 299#L236 assume 0 == ~mode1~0 % 256; 329#L237 assume ~id2~0 >= 0; 279#L238 assume 0 == ~st2~0; 280#L239 assume ~send2~0 == ~id2~0; 310#L240 assume 0 == ~mode2~0 % 256; 242#L241 assume ~id3~0 >= 0; 243#L242 assume 0 == ~st3~0; 293#L243 assume ~send3~0 == ~id3~0; 294#L244 assume 0 == ~mode3~0 % 256; 335#L245 assume ~id4~0 >= 0; 300#L246 assume 0 == ~st4~0; 301#L247 assume ~send4~0 == ~id4~0; 330#L248 assume 0 == ~mode4~0 % 256; 281#L249 assume ~id5~0 >= 0; 282#L250 assume 0 == ~st5~0; 311#L251 assume ~send5~0 == ~id5~0; 244#L252 assume 0 == ~mode5~0 % 256; 245#L253 assume ~id6~0 >= 0; 295#L254 assume 0 == ~st6~0; 252#L255 assume ~send6~0 == ~id6~0; 253#L256 assume 0 == ~mode6~0 % 256; 302#L257 assume ~id1~0 != ~id2~0; 303#L258 assume ~id1~0 != ~id3~0; 331#L259 assume ~id1~0 != ~id4~0; 283#L260 assume ~id1~0 != ~id5~0; 284#L261 assume ~id1~0 != ~id6~0; 312#L262 assume ~id2~0 != ~id3~0; 246#L263 assume ~id2~0 != ~id4~0; 247#L264 assume ~id2~0 != ~id5~0; 296#L265 assume ~id2~0 != ~id6~0; 254#L266 assume ~id3~0 != ~id4~0; 255#L267 assume ~id3~0 != ~id5~0; 304#L268 assume ~id3~0 != ~id6~0; 305#L269 assume ~id4~0 != ~id5~0; 332#L270 assume ~id4~0 != ~id6~0; 266#L271 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 267#L232-1 init_#res := init_~tmp~0; 288#L393 main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 337#L22 assume !(0 == assume_abort_if_not_~cond); 256#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 257#L471-2 [2020-11-28 03:01:11,516 INFO L796 eck$LassoCheckResult]: Loop: 257#L471-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 307#L78 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 308#L82 assume !(node1_~m1~0 != ~nomsg~0); 316#L82-1 ~mode1~0 := 0; 306#L78-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 274#L106 assume !(0 != ~mode2~0 % 256); 275#L119 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 317#L119-2 ~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; 248#L106-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 249#L131 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 263#L134 assume !(node3_~m3~0 != ~nomsg~0); 324#L134-1 ~mode3~0 := 0; 258#L131-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 259#L156 assume !(0 != ~mode4~0 % 256); 273#L169 assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite10 := ~send4~0; 268#L169-2 ~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; 269#L156-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 342#L181 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 341#L184 assume !(node5_~m5~0 != ~nomsg~0); 287#L184-1 ~mode5~0 := 0; 277#L181-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 339#L206 assume !(0 != ~mode6~0 % 256); 240#L219 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 241#L219-2 ~p6_new~0 := (if node6_#t~ite12 % 256 <= 127 then node6_#t~ite12 % 256 else node6_#t~ite12 % 256 - 256);havoc node6_#t~ite12;~mode6~0 := 1; 265#L206-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 340#L401 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1 := 0; 271#L401-1 check_#res := check_~tmp~1; 338#L421 main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 321#L504 assume !(0 == assert_~arg % 256); 297#L499 main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 257#L471-2 [2020-11-28 03:01:11,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:11,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1716035805, now seen corresponding path program 1 times [2020-11-28 03:01:11,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:11,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770293561] [2020-11-28 03:01:11,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:11,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:11,602 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:11,646 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:11,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:11,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1409572767, now seen corresponding path program 1 times [2020-11-28 03:01:11,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:11,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118793578] [2020-11-28 03:01:11,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:11,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118793578] [2020-11-28 03:01:11,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:11,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:11,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47428920] [2020-11-28 03:01:11,778 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 03:01:11,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:11,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:01:11,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:11,779 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. cyclomatic complexity: 36 Second operand 5 states. [2020-11-28 03:01:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:11,853 INFO L93 Difference]: Finished difference Result 107 states and 141 transitions. [2020-11-28 03:01:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:01:11,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 141 transitions. [2020-11-28 03:01:11,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2020-11-28 03:01:11,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 104 states and 136 transitions. [2020-11-28 03:01:11,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2020-11-28 03:01:11,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2020-11-28 03:01:11,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 136 transitions. [2020-11-28 03:01:11,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:01:11,860 INFO L691 BuchiCegarLoop]: Abstraction has 104 states and 136 transitions. [2020-11-28 03:01:11,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 136 transitions. [2020-11-28 03:01:11,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-11-28 03:01:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-28 03:01:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2020-11-28 03:01:11,878 INFO L714 BuchiCegarLoop]: Abstraction has 104 states and 136 transitions. [2020-11-28 03:01:11,878 INFO L594 BuchiCegarLoop]: Abstraction has 104 states and 136 transitions. [2020-11-28 03:01:11,878 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:01:11,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 136 transitions. [2020-11-28 03:01:11,880 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2020-11-28 03:01:11,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:01:11,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:01:11,882 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:11,882 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:11,883 INFO L794 eck$LassoCheckResult]: Stem: 559#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[4 := #funAddr~node5.base], ~nodes~0.offset[4 := #funAddr~node5.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[5 := #funAddr~node6.base], ~nodes~0.offset[5 := #funAddr~node6.offset]; 473#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 474#L232 assume 0 == ~r1~0; 515#L233 assume ~id1~0 >= 0; 557#L234 assume 0 == ~st1~0; 521#L235 assume ~send1~0 == ~id1~0; 522#L236 assume 0 == ~mode1~0 % 256; 552#L237 assume ~id2~0 >= 0; 502#L238 assume 0 == ~st2~0; 503#L239 assume ~send2~0 == ~id2~0; 533#L240 assume 0 == ~mode2~0 % 256; 465#L241 assume ~id3~0 >= 0; 466#L242 assume 0 == ~st3~0; 516#L243 assume ~send3~0 == ~id3~0; 517#L244 assume 0 == ~mode3~0 % 256; 558#L245 assume ~id4~0 >= 0; 523#L246 assume 0 == ~st4~0; 524#L247 assume ~send4~0 == ~id4~0; 553#L248 assume 0 == ~mode4~0 % 256; 504#L249 assume ~id5~0 >= 0; 505#L250 assume 0 == ~st5~0; 534#L251 assume ~send5~0 == ~id5~0; 467#L252 assume 0 == ~mode5~0 % 256; 468#L253 assume ~id6~0 >= 0; 518#L254 assume 0 == ~st6~0; 475#L255 assume ~send6~0 == ~id6~0; 476#L256 assume 0 == ~mode6~0 % 256; 525#L257 assume ~id1~0 != ~id2~0; 526#L258 assume ~id1~0 != ~id3~0; 554#L259 assume ~id1~0 != ~id4~0; 506#L260 assume ~id1~0 != ~id5~0; 507#L261 assume ~id1~0 != ~id6~0; 535#L262 assume ~id2~0 != ~id3~0; 469#L263 assume ~id2~0 != ~id4~0; 470#L264 assume ~id2~0 != ~id5~0; 519#L265 assume ~id2~0 != ~id6~0; 477#L266 assume ~id3~0 != ~id4~0; 478#L267 assume ~id3~0 != ~id5~0; 527#L268 assume ~id3~0 != ~id6~0; 528#L269 assume ~id4~0 != ~id5~0; 555#L270 assume ~id4~0 != ~id6~0; 489#L271 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 490#L232-1 init_#res := init_~tmp~0; 511#L393 main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 560#L22 assume !(0 == assume_abort_if_not_~cond); 479#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 480#L471-2 [2020-11-28 03:01:11,883 INFO L796 eck$LassoCheckResult]: Loop: 480#L471-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 530#L78 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 531#L82 assume !(node1_~m1~0 != ~nomsg~0); 539#L82-1 ~mode1~0 := 0; 529#L78-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 497#L106 assume !(0 != ~mode2~0 % 256); 498#L119 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 540#L119-2 ~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; 471#L106-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 472#L131 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 486#L134 assume !(node3_~m3~0 != ~nomsg~0); 547#L134-1 ~mode3~0 := 0; 481#L131-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 482#L156 assume !(0 != ~mode4~0 % 256); 496#L169 assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite10 := ~send4~0; 491#L169-2 ~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; 492#L156-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 565#L181 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 564#L184 assume !(node5_~m5~0 != ~nomsg~0); 510#L184-1 ~mode5~0 := 0; 500#L181-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 562#L206 assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 556#L209 assume !(node6_~m6~0 != ~nomsg~0); 513#L209-1 ~mode6~0 := 0; 488#L206-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 563#L401 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1; 551#L402 assume ~r1~0 >= 6; 493#L406 assume ~r1~0 < 6;check_~tmp~1 := 1; 494#L401-1 check_#res := check_~tmp~1; 561#L421 main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 544#L504 assume !(0 == assert_~arg % 256); 520#L499 main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 480#L471-2 [2020-11-28 03:01:11,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:11,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1716035805, now seen corresponding path program 2 times [2020-11-28 03:01:11,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:11,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784081836] [2020-11-28 03:01:11,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:11,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:11,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:12,031 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:12,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:12,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1058503813, now seen corresponding path program 1 times [2020-11-28 03:01:12,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:12,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161817398] [2020-11-28 03:01:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:12,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161817398] [2020-11-28 03:01:12,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:12,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:12,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967141759] [2020-11-28 03:01:12,086 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 03:01:12,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:12,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:12,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:12,087 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. cyclomatic complexity: 33 Second operand 3 states. [2020-11-28 03:01:12,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:12,131 INFO L93 Difference]: Finished difference Result 156 states and 215 transitions. [2020-11-28 03:01:12,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:12,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 215 transitions. [2020-11-28 03:01:12,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 110 [2020-11-28 03:01:12,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 156 states and 215 transitions. [2020-11-28 03:01:12,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2020-11-28 03:01:12,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 156 [2020-11-28 03:01:12,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 215 transitions. [2020-11-28 03:01:12,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:01:12,138 INFO L691 BuchiCegarLoop]: Abstraction has 156 states and 215 transitions. [2020-11-28 03:01:12,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 215 transitions. [2020-11-28 03:01:12,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-11-28 03:01:12,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-11-28 03:01:12,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 215 transitions. [2020-11-28 03:01:12,148 INFO L714 BuchiCegarLoop]: Abstraction has 156 states and 215 transitions. [2020-11-28 03:01:12,148 INFO L594 BuchiCegarLoop]: Abstraction has 156 states and 215 transitions. [2020-11-28 03:01:12,148 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:01:12,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 156 states and 215 transitions. [2020-11-28 03:01:12,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 110 [2020-11-28 03:01:12,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:01:12,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:01:12,152 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:12,152 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:12,152 INFO L794 eck$LassoCheckResult]: Stem: 826#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[4 := #funAddr~node5.base], ~nodes~0.offset[4 := #funAddr~node5.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[5 := #funAddr~node6.base], ~nodes~0.offset[5 := #funAddr~node6.offset]; 739#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 740#L232 assume 0 == ~r1~0; 780#L233 assume ~id1~0 >= 0; 824#L234 assume 0 == ~st1~0; 787#L235 assume ~send1~0 == ~id1~0; 788#L236 assume 0 == ~mode1~0 % 256; 819#L237 assume ~id2~0 >= 0; 767#L238 assume 0 == ~st2~0; 768#L239 assume ~send2~0 == ~id2~0; 799#L240 assume 0 == ~mode2~0 % 256; 731#L241 assume ~id3~0 >= 0; 732#L242 assume 0 == ~st3~0; 781#L243 assume ~send3~0 == ~id3~0; 782#L244 assume 0 == ~mode3~0 % 256; 825#L245 assume ~id4~0 >= 0; 789#L246 assume 0 == ~st4~0; 790#L247 assume ~send4~0 == ~id4~0; 820#L248 assume 0 == ~mode4~0 % 256; 769#L249 assume ~id5~0 >= 0; 770#L250 assume 0 == ~st5~0; 800#L251 assume ~send5~0 == ~id5~0; 733#L252 assume 0 == ~mode5~0 % 256; 734#L253 assume ~id6~0 >= 0; 783#L254 assume 0 == ~st6~0; 741#L255 assume ~send6~0 == ~id6~0; 742#L256 assume 0 == ~mode6~0 % 256; 791#L257 assume ~id1~0 != ~id2~0; 792#L258 assume ~id1~0 != ~id3~0; 821#L259 assume ~id1~0 != ~id4~0; 771#L260 assume ~id1~0 != ~id5~0; 772#L261 assume ~id1~0 != ~id6~0; 801#L262 assume ~id2~0 != ~id3~0; 735#L263 assume ~id2~0 != ~id4~0; 736#L264 assume ~id2~0 != ~id5~0; 784#L265 assume ~id2~0 != ~id6~0; 743#L266 assume ~id3~0 != ~id4~0; 744#L267 assume ~id3~0 != ~id5~0; 793#L268 assume ~id3~0 != ~id6~0; 794#L269 assume ~id4~0 != ~id5~0; 822#L270 assume ~id4~0 != ~id6~0; 755#L271 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 756#L232-1 init_#res := init_~tmp~0; 776#L393 main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 827#L22 assume !(0 == assume_abort_if_not_~cond); 745#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 746#L471-2 [2020-11-28 03:01:12,153 INFO L796 eck$LassoCheckResult]: Loop: 746#L471-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 880#L78 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 797#L82 assume !(node1_~m1~0 != ~nomsg~0); 805#L82-1 ~mode1~0 := 0; 830#L78-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 877#L106 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 874#L109 assume !(node2_~m2~0 != ~nomsg~0); 872#L109-1 ~mode2~0 := 0; 870#L106-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 869#L131 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 867#L134 assume !(node3_~m3~0 != ~nomsg~0); 864#L134-1 ~mode3~0 := 0; 862#L131-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 861#L156 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 859#L159 assume !(node4_~m4~0 != ~nomsg~0); 856#L159-1 ~mode4~0 := 0; 854#L156-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 853#L181 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 851#L184 assume !(node5_~m5~0 != ~nomsg~0); 848#L184-1 ~mode5~0 := 0; 846#L181-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 845#L206 assume !(0 != ~mode6~0 % 256); 841#L219 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 839#L219-2 ~p6_new~0 := (if node6_#t~ite12 % 256 <= 127 then node6_#t~ite12 % 256 else node6_#t~ite12 % 256 - 256);havoc node6_#t~ite12;~mode6~0 := 1; 838#L206-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 837#L401 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1; 836#L402 assume !(~r1~0 >= 6); 815#L405 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0; 816#L406 assume ~r1~0 < 6;check_~tmp~1 := 1; 884#L401-1 check_#res := check_~tmp~1; 883#L421 main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 882#L504 assume !(0 == assert_~arg % 256); 881#L499 main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 746#L471-2 [2020-11-28 03:01:12,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:12,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1716035805, now seen corresponding path program 3 times [2020-11-28 03:01:12,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:12,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122867250] [2020-11-28 03:01:12,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:12,190 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:12,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:12,246 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:12,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:12,247 INFO L82 PathProgramCache]: Analyzing trace with hash -312144957, now seen corresponding path program 1 times [2020-11-28 03:01:12,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:12,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224876325] [2020-11-28 03:01:12,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:12,259 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:12,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:12,284 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:12,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:12,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1903322911, now seen corresponding path program 1 times [2020-11-28 03:01:12,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:12,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744763388] [2020-11-28 03:01:12,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:12,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744763388] [2020-11-28 03:01:12,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:12,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:12,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762393142] [2020-11-28 03:01:13,144 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-11-28 03:01:13,805 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-11-28 03:01:13,817 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:01:13,818 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:01:13,818 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:01:13,818 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:01:13,819 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:01:13,819 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:13,819 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:01:13,819 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:01:13,819 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.6.1.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2020-11-28 03:01:13,819 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:01:13,820 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:01:13,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:13,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,219 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-11-28 03:01:14,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:14,902 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-11-28 03:01:17,094 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-11-28 03:01:17,226 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:01:17,227 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:17,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:01:17,251 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:17,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:01:17,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:01:17,408 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:01:17,409 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:01:17,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:01:17,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:01:17,410 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:01:17,410 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:01:17,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:17,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:01:17,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:01:17,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.6.1.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2020-11-28 03:01:17,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:01:17,410 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:01:17,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,707 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-11-28 03:01:17,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:17,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:18,164 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-11-28 03:01:20,336 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-11-28 03:01:20,518 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:01:20,523 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:01:20,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:20,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:20,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,549 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:01:20,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:01:20,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:20,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:20,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:20,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:20,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:20,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:20,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:20,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,700 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:01:20,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,702 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 03:01:20,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:20,711 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,747 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:01:20,747 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:01:20,756 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:20,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:20,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:20,793 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:01:20,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:01:20,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:01:20,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:01:20,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:01:20,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:20,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:20,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:01:20,969 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:20,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:20,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:20,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:20,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:20,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:20,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:20,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:20,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:21,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:21,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:21,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:21,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:21,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:21,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:01:21,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:01:21,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:21,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:21,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:21,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:21,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:21,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:21,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:21,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:21,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:21,063 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:21,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:21,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:21,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:21,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:21,090 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2020-11-28 03:01:21,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:21,146 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 03:01:21,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:21,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:01:21,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:21,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:21,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:21,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:21,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:21,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:21,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:21,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:21,232 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:01:21,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:21,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:21,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:21,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:21,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:21,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:01:21,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:01:21,281 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:21,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:21,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:21,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:21,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:21,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:21,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:21,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:21,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:21,339 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:21,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:21,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:21,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:21,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:21,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:21,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:21,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:21,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:21,366 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:21,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:01:21,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:21,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:21,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:21,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:21,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:21,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:21,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:21,391 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:01:21,403 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:01:21,403 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_8e829aff-b666-45a5-9069-09747cb4a54b/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:01:21,410 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:01:21,410 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:01:21,410 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:01:21,411 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 23 Supporting invariants [] Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:21,441 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:01:21,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:21,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:01:21,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:01:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:21,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:01:21,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:01:21,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:21,646 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:01:21,648 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 156 states and 215 transitions. cyclomatic complexity: 60 Second operand 3 states. [2020-11-28 03:01:21,732 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 156 states and 215 transitions. cyclomatic complexity: 60. Second operand 3 states. Result 265 states and 384 transitions. Complement of second has 4 states. [2020-11-28 03:01:21,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:01:21,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:01:21,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2020-11-28 03:01:21,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 136 transitions. Stem has 46 letters. Loop has 33 letters. [2020-11-28 03:01:21,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:01:21,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 136 transitions. Stem has 79 letters. Loop has 33 letters. [2020-11-28 03:01:21,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:01:21,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 136 transitions. Stem has 46 letters. Loop has 66 letters. [2020-11-28 03:01:21,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:01:21,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 384 transitions. [2020-11-28 03:01:21,745 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:01:21,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 0 states and 0 transitions. [2020-11-28 03:01:21,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:01:21,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:01:21,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:01:21,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:01:21,746 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:21,746 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:21,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:21,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:21,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:21,747 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-28 03:01:21,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:21,747 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-28 03:01:21,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:01:21,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-28 03:01:21,747 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:01:21,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:01:21,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:01:21,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:01:21,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:01:21,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:01:21,748 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:21,748 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:21,748 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:21,748 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:01:21,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:01:21,748 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:01:21,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:01:21,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:01:21 BoogieIcfgContainer [2020-11-28 03:01:21,757 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:01:21,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:01:21,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:01:21,758 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:01:21,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:10" (3/4) ... [2020-11-28 03:01:21,761 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:01:21,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:01:21,763 INFO L168 Benchmark]: Toolchain (without parser) took 12701.66 ms. Allocated memory was 100.7 MB in the beginning and 262.1 MB in the end (delta: 161.5 MB). Free memory was 75.8 MB in the beginning and 143.7 MB in the end (delta: -67.9 MB). Peak memory consumption was 96.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:21,763 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 83.9 MB. Free memory is still 56.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:21,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.49 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 60.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:21,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.11 ms. Allocated memory is still 100.7 MB. Free memory was 60.3 MB in the beginning and 57.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:21,770 INFO L168 Benchmark]: Boogie Preprocessor took 54.10 ms. Allocated memory is still 100.7 MB. Free memory was 57.8 MB in the beginning and 55.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:21,771 INFO L168 Benchmark]: RCFGBuilder took 974.10 ms. Allocated memory is still 100.7 MB. Free memory was 55.5 MB in the beginning and 56.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:21,771 INFO L168 Benchmark]: BuchiAutomizer took 11126.04 ms. Allocated memory was 100.7 MB in the beginning and 262.1 MB in the end (delta: 161.5 MB). Free memory was 56.9 MB in the beginning and 143.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:21,772 INFO L168 Benchmark]: Witness Printer took 3.68 ms. Allocated memory is still 262.1 MB. Free memory is still 143.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:21,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 83.9 MB. Free memory is still 56.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 466.49 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 60.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.11 ms. Allocated memory is still 100.7 MB. Free memory was 60.3 MB in the beginning and 57.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.10 ms. Allocated memory is still 100.7 MB. Free memory was 57.8 MB in the beginning and 55.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 974.10 ms. Allocated memory is still 100.7 MB. Free memory was 55.5 MB in the beginning and 56.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11126.04 ms. Allocated memory was 100.7 MB in the beginning and 262.1 MB in the end (delta: 161.5 MB). Free memory was 56.9 MB in the beginning and 143.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.68 ms. Allocated memory is still 262.1 MB. Free memory is still 143.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 23 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 11.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 10.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. 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 156 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 660 SDtfs, 306 SDslu, 1122 SDs, 0 SdLazy, 36 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital216 mio100 ax133 hnf107 lsp39 ukn80 mio100 lsp100 div131 bol100 ite100 ukn100 eq193 hnf76 smp100 dnf718 smp49 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 100ms VariablesStem: 0 VariablesLoop: 33 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 0 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...