./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.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_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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 4d44add21ea0ec135ffadd22ea740a2c1a5033c8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:59:32,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:59:32,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:59:32,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:59:32,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:59:32,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:59:32,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:59:32,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:59:32,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:59:32,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:59:32,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:59:32,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:59:32,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:59:32,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:59:32,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:59:32,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:59:32,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:59:32,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:59:32,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:59:32,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:59:32,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:59:32,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:59:32,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:59:32,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:59:32,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:59:32,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:59:32,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:59:32,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:59:32,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:59:32,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:59:32,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:59:32,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:59:32,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:59:32,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:59:32,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:59:32,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:59:32,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:59:32,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:59:32,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:59:32,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:59:32,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:59:32,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:59:32,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:59:32,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:59:32,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:59:32,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:59:32,843 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:59:32,843 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:59:32,843 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:59:32,843 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:59:32,844 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:59:32,844 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:59:32,844 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:59:32,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:59:32,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:59:32,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:59:32,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:59:32,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:59:32,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:59:32,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:59:32,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:59:32,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:59:32,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:59:32,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:59:32,847 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:59:32,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:59:32,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:59:32,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:59:32,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:59:32,848 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:59:32,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:59:32,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:59:32,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:59:32,849 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:59:32,850 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:59:32,850 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_a1b6157a-31e1-4dea-ba61-45c9723965d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d44add21ea0ec135ffadd22ea740a2c1a5033c8 [2020-11-29 19:59:33,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:59:33,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:59:33,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:59:33,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:59:33,161 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:59:33,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c [2020-11-29 19:59:33,229 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/data/935e36e93/f1509b7f05554aecb5a9449cf5962fe6/FLAGd577d0b16 [2020-11-29 19:59:33,772 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:59:33,772 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c [2020-11-29 19:59:33,794 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/data/935e36e93/f1509b7f05554aecb5a9449cf5962fe6/FLAGd577d0b16 [2020-11-29 19:59:34,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/data/935e36e93/f1509b7f05554aecb5a9449cf5962fe6 [2020-11-29 19:59:34,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:59:34,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:59:34,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:59:34,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:59:34,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:59:34,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c08605c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34, skipping insertion in model container [2020-11-29 19:59:34,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:59:34,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:59:34,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:59:34,470 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:59:34,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:59:34,605 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:59:34,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34 WrapperNode [2020-11-29 19:59:34,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:59:34,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:59:34,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:59:34,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:59:34,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:59:34,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:59:34,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:59:34,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:59:34,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... [2020-11-29 19:59:34,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:59:34,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:59:34,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:59:34,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:59:34,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:59:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:59:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:59:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:59:35,927 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:59:35,927 INFO L298 CfgBuilder]: Removed 31 assume(true) statements. [2020-11-29 19:59:35,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:59:35 BoogieIcfgContainer [2020-11-29 19:59:35,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:59:35,930 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:59:35,930 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:59:35,934 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:59:35,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:59:35,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:59:34" (1/3) ... [2020-11-29 19:59:35,937 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d3b757a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:59:35, skipping insertion in model container [2020-11-29 19:59:35,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:59:35,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:59:34" (2/3) ... [2020-11-29 19:59:35,938 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d3b757a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:59:35, skipping insertion in model container [2020-11-29 19:59:35,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:59:35,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:59:35" (3/3) ... [2020-11-29 19:59:35,939 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals.c [2020-11-29 19:59:35,999 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:59:35,999 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:59:35,999 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:59:35,999 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:59:36,000 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:59:36,000 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:59:36,000 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:59:36,000 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:59:36,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 147 states. [2020-11-29 19:59:36,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2020-11-29 19:59:36,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:59:36,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:59:36,073 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:59:36,073 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, 1, 1, 1, 1, 1] [2020-11-29 19:59:36,073 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:59:36,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 147 states. [2020-11-29 19:59:36,082 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2020-11-29 19:59:36,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:59:36,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:59:36,085 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:59:36,085 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, 1, 1, 1, 1, 1] [2020-11-29 19:59:36,093 INFO L794 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0;~p8~0 := 0;~p8_old~0 := 0;~p8_new~0 := 0;~id8~0 := 0;~st8~0 := 0;~send8~0 := 0;~mode8~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[6 := #funAddr~node7.base], ~nodes~0.offset[6 := #funAddr~node7.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[7 := #funAddr~node8.base], ~nodes~0.offset[7 := #funAddr~node8.offset]; 12#L-1true havoc main_#res;havoc main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~ret48, main_#t~ret49, main_#t~post50, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet15;havoc main_#t~nondet15;~id1~0 := main_#t~nondet16;havoc main_#t~nondet16;~st1~0 := main_#t~nondet17;havoc main_#t~nondet17;~send1~0 := main_#t~nondet18;havoc main_#t~nondet18;~mode1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~id3~0 := main_#t~nondet24;havoc main_#t~nondet24;~st3~0 := main_#t~nondet25;havoc main_#t~nondet25;~send3~0 := main_#t~nondet26;havoc main_#t~nondet26;~mode3~0 := main_#t~nondet27;havoc main_#t~nondet27;~id4~0 := main_#t~nondet28;havoc main_#t~nondet28;~st4~0 := main_#t~nondet29;havoc main_#t~nondet29;~send4~0 := main_#t~nondet30;havoc main_#t~nondet30;~mode4~0 := main_#t~nondet31;havoc main_#t~nondet31;~id5~0 := main_#t~nondet32;havoc main_#t~nondet32;~st5~0 := main_#t~nondet33;havoc main_#t~nondet33;~send5~0 := main_#t~nondet34;havoc main_#t~nondet34;~mode5~0 := main_#t~nondet35;havoc main_#t~nondet35;~id6~0 := main_#t~nondet36;havoc main_#t~nondet36;~st6~0 := main_#t~nondet37;havoc main_#t~nondet37;~send6~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode6~0 := main_#t~nondet39;havoc main_#t~nondet39;~id7~0 := main_#t~nondet40;havoc main_#t~nondet40;~st7~0 := main_#t~nondet41;havoc main_#t~nondet41;~send7~0 := main_#t~nondet42;havoc main_#t~nondet42;~mode7~0 := main_#t~nondet43;havoc main_#t~nondet43;~id8~0 := main_#t~nondet44;havoc main_#t~nondet44;~st8~0 := main_#t~nondet45;havoc main_#t~nondet45;~send8~0 := main_#t~nondet46;havoc main_#t~nondet46;~mode8~0 := main_#t~nondet47;havoc main_#t~nondet47;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 59#L295true assume !(0 == ~r1~0);init_~tmp~0 := 0; 58#L295-1true init_#res := init_~tmp~0; 72#L540true main_#t~ret48 := init_#res;main_~i2~0 := main_#t~ret48;havoc main_#t~ret48;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; 115#L22true assume !(0 == assume_abort_if_not_~cond); 15#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;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~nomsg~0;~p8_new~0 := ~nomsg~0;main_~i2~0 := 0; 109#L630-2true [2020-11-29 19:59:36,094 INFO L796 eck$LassoCheckResult]: Loop: 109#L630-2true assume !!(main_~i2~0 < 16);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 24#L92true 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 := ~p8_old~0;~p8_old~0 := ~nomsg~0; 128#L96true assume !(node1_~m1~0 != ~nomsg~0); 127#L96-1true ~mode1~0 := 0; 23#L92-2true havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 129#L118true assume !(0 != ~mode2~0 % 256); 21#L131true assume !(~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0);node2_#t~ite8 := ~p2_new~0; 20#L131-2true ~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; 108#L118-2true havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 98#L143true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 81#L146true assume !(node3_~m3~0 != ~nomsg~0); 80#L146-1true ~mode3~0 := 0; 117#L143-2true havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 82#L168true assume !(0 != ~mode4~0 % 256); 144#L181true assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite10 := ~send4~0; 122#L181-2true ~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; 79#L168-2true havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 88#L193true assume !(0 != ~mode5~0 % 256); 136#L206true assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 132#L206-2true ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 84#L193-2true havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 56#L218true assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 48#L221true assume !(node6_~m6~0 != ~nomsg~0); 47#L221-1true ~mode6~0 := 0; 73#L218-2true havoc node7_#t~ite13, node7_~m7~0;havoc node7_~m7~0;node7_~m7~0 := ~nomsg~0; 49#L243true assume !(0 != ~mode7~0 % 256); 114#L256true assume ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0;node7_#t~ite13 := ~send7~0; 83#L256-2true ~p7_new~0 := (if node7_#t~ite13 % 256 <= 127 then node7_#t~ite13 % 256 else node7_#t~ite13 % 256 - 256);havoc node7_#t~ite13;~mode7~0 := 1; 46#L243-2true havoc node8_#t~ite14, node8_~m8~0;havoc node8_~m8~0;node8_~m8~0 := ~nomsg~0; 53#L268true assume !(0 != ~mode8~0 % 256); 97#L281true assume ~send8~0 != ~nomsg~0 && ~p8_new~0 == ~nomsg~0;node8_#t~ite14 := ~send8~0; 90#L281-2true ~p8_new~0 := (if node8_#t~ite14 % 256 <= 127 then node8_#t~ite14 % 256 else node8_#t~ite14 % 256 - 256);havoc node8_#t~ite14;~mode8~0 := 1; 50#L268-2true ~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;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~p8_new~0;~p8_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 77#L548true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0 <= 1);check_~tmp~1 := 0; 78#L548-1true check_#res := check_~tmp~1; 44#L568true main_#t~ret49 := check_#res;main_~c1~0 := main_#t~ret49;havoc main_#t~ret49;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 87#L669true assume !(0 == assert_~arg % 256); 57#L664true main_#t~post50 := main_~i2~0;main_~i2~0 := 1 + main_#t~post50;havoc main_#t~post50; 109#L630-2true [2020-11-29 19:59:36,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:36,101 INFO L82 PathProgramCache]: Analyzing trace with hash -2144605008, now seen corresponding path program 1 times [2020-11-29 19:59:36,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:59:36,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080217707] [2020-11-29 19:59:36,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:59:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:59:36,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:59:36,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080217707] [2020-11-29 19:59:36,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:59:36,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:59:36,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659707653] [2020-11-29 19:59:36,367 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:59:36,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:36,368 INFO L82 PathProgramCache]: Analyzing trace with hash -128337131, now seen corresponding path program 1 times [2020-11-29 19:59:36,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:59:36,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531112584] [2020-11-29 19:59:36,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:59:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:59:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:59:36,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531112584] [2020-11-29 19:59:36,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:59:36,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:59:36,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859106849] [2020-11-29 19:59:36,687 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:59:36,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:59:36,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:59:36,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:59:36,711 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2020-11-29 19:59:36,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:59:36,955 INFO L93 Difference]: Finished difference Result 149 states and 254 transitions. [2020-11-29 19:59:36,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:59:36,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 254 transitions. [2020-11-29 19:59:36,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 74 [2020-11-29 19:59:36,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 141 states and 186 transitions. [2020-11-29 19:59:36,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 141 [2020-11-29 19:59:36,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 141 [2020-11-29 19:59:36,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 186 transitions. [2020-11-29 19:59:36,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:59:36,975 INFO L691 BuchiCegarLoop]: Abstraction has 141 states and 186 transitions. [2020-11-29 19:59:36,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 186 transitions. [2020-11-29 19:59:37,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2020-11-29 19:59:37,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-29 19:59:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 186 transitions. [2020-11-29 19:59:37,011 INFO L714 BuchiCegarLoop]: Abstraction has 141 states and 186 transitions. [2020-11-29 19:59:37,011 INFO L594 BuchiCegarLoop]: Abstraction has 141 states and 186 transitions. [2020-11-29 19:59:37,011 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:59:37,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 186 transitions. [2020-11-29 19:59:37,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 74 [2020-11-29 19:59:37,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:59:37,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:59:37,019 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:59:37,019 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, 1, 1, 1, 1, 1] [2020-11-29 19:59:37,020 INFO L794 eck$LassoCheckResult]: Stem: 448#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0;~p8~0 := 0;~p8_old~0 := 0;~p8_new~0 := 0;~id8~0 := 0;~st8~0 := 0;~send8~0 := 0;~mode8~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[6 := #funAddr~node7.base], ~nodes~0.offset[6 := #funAddr~node7.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[7 := #funAddr~node8.base], ~nodes~0.offset[7 := #funAddr~node8.offset]; 333#L-1 havoc main_#res;havoc main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~ret48, main_#t~ret49, main_#t~post50, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet15;havoc main_#t~nondet15;~id1~0 := main_#t~nondet16;havoc main_#t~nondet16;~st1~0 := main_#t~nondet17;havoc main_#t~nondet17;~send1~0 := main_#t~nondet18;havoc main_#t~nondet18;~mode1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~id3~0 := main_#t~nondet24;havoc main_#t~nondet24;~st3~0 := main_#t~nondet25;havoc main_#t~nondet25;~send3~0 := main_#t~nondet26;havoc main_#t~nondet26;~mode3~0 := main_#t~nondet27;havoc main_#t~nondet27;~id4~0 := main_#t~nondet28;havoc main_#t~nondet28;~st4~0 := main_#t~nondet29;havoc main_#t~nondet29;~send4~0 := main_#t~nondet30;havoc main_#t~nondet30;~mode4~0 := main_#t~nondet31;havoc main_#t~nondet31;~id5~0 := main_#t~nondet32;havoc main_#t~nondet32;~st5~0 := main_#t~nondet33;havoc main_#t~nondet33;~send5~0 := main_#t~nondet34;havoc main_#t~nondet34;~mode5~0 := main_#t~nondet35;havoc main_#t~nondet35;~id6~0 := main_#t~nondet36;havoc main_#t~nondet36;~st6~0 := main_#t~nondet37;havoc main_#t~nondet37;~send6~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode6~0 := main_#t~nondet39;havoc main_#t~nondet39;~id7~0 := main_#t~nondet40;havoc main_#t~nondet40;~st7~0 := main_#t~nondet41;havoc main_#t~nondet41;~send7~0 := main_#t~nondet42;havoc main_#t~nondet42;~mode7~0 := main_#t~nondet43;havoc main_#t~nondet43;~id8~0 := main_#t~nondet44;havoc main_#t~nondet44;~st8~0 := main_#t~nondet45;havoc main_#t~nondet45;~send8~0 := main_#t~nondet46;havoc main_#t~nondet46;~mode8~0 := main_#t~nondet47;havoc main_#t~nondet47;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 334#L295 assume 0 == ~r1~0; 329#L296 assume ~id1~0 >= 0; 330#L297 assume 0 == ~st1~0; 419#L298 assume ~send1~0 == ~id1~0; 348#L299 assume 0 == ~mode1~0 % 256; 349#L300 assume ~id2~0 >= 0; 405#L301 assume 0 == ~st2~0; 406#L302 assume ~send2~0 == ~id2~0; 429#L303 assume 0 == ~mode2~0 % 256; 376#L304 assume ~id3~0 >= 0; 377#L305 assume 0 == ~st3~0; 424#L306 assume ~send3~0 == ~id3~0; 343#L307 assume 0 == ~mode3~0 % 256; 344#L308 assume ~id4~0 >= 0; 418#L309 assume 0 == ~st4~0; 327#L310 assume ~send4~0 == ~id4~0; 328#L311 assume 0 == ~mode4~0 % 256; 389#L312 assume ~id5~0 >= 0; 390#L313 assume 0 == ~st5~0; 443#L314 assume ~send5~0 == ~id5~0; 374#L315 assume 0 == ~mode5~0 % 256; 375#L316 assume ~id6~0 >= 0; 423#L317 assume 0 == ~st6~0; 339#L318 assume ~send6~0 == ~id6~0; 340#L319 assume 0 == ~mode6~0 % 256; 417#L320 assume ~id7~0 >= 0; 325#L321 assume 0 == ~st7~0; 326#L322 assume ~send7~0 == ~id7~0; 385#L323 assume 0 == ~mode7~0 % 256; 386#L324 assume ~id8~0 >= 0; 442#L325 assume 0 == ~st8~0; 372#L326 assume ~send8~0 == ~id8~0; 373#L327 assume 0 == ~mode8~0 % 256; 422#L328 assume ~id1~0 != ~id2~0; 337#L329 assume ~id1~0 != ~id3~0; 338#L330 assume ~id1~0 != ~id4~0; 416#L331 assume ~id1~0 != ~id5~0; 323#L332 assume ~id1~0 != ~id6~0; 324#L333 assume ~id1~0 != ~id7~0; 383#L334 assume ~id1~0 != ~id8~0; 384#L335 assume ~id2~0 != ~id3~0; 441#L336 assume ~id2~0 != ~id4~0; 370#L337 assume ~id2~0 != ~id5~0; 371#L338 assume ~id2~0 != ~id6~0; 421#L339 assume ~id2~0 != ~id7~0; 335#L340 assume ~id2~0 != ~id8~0; 336#L341 assume ~id3~0 != ~id4~0; 415#L342 assume ~id3~0 != ~id5~0; 321#L343 assume ~id3~0 != ~id6~0; 322#L344 assume ~id3~0 != ~id7~0; 380#L345 assume ~id3~0 != ~id8~0; 381#L346 assume ~id4~0 != ~id5~0; 440#L347 assume ~id4~0 != ~id6~0; 368#L348 assume ~id4~0 != ~id7~0; 369#L349 assume ~id4~0 != ~id8~0; 420#L350 assume ~id5~0 != ~id6~0; 365#L351 assume ~id5~0 != ~id7~0; 366#L352 assume ~id5~0 != ~id8~0; 414#L353 assume ~id6~0 != ~id7~0; 319#L354 assume ~id6~0 != ~id8~0; 320#L355 assume ~id7~0 != ~id8~0;init_~tmp~0 := 1; 412#L295-1 init_#res := init_~tmp~0; 413#L540 main_#t~ret48 := init_#res;main_~i2~0 := main_#t~ret48;havoc main_#t~ret48;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; 426#L22 assume !(0 == assume_abort_if_not_~cond); 341#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;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~nomsg~0;~p8_new~0 := ~nomsg~0;main_~i2~0 := 0; 342#L630-2 [2020-11-29 19:59:37,020 INFO L796 eck$LassoCheckResult]: Loop: 342#L630-2 assume !!(main_~i2~0 < 16);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 357#L92 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 := ~p8_old~0;~p8_old~0 := ~nomsg~0; 358#L96 assume !(node1_~m1~0 != ~nomsg~0); 408#L96-1 ~mode1~0 := 0; 332#L92-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 356#L118 assume !(0 != ~mode2~0 % 256); 352#L131 assume !(~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0);node2_#t~ite8 := ~p2_new~0; 350#L131-2 ~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; 351#L118-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 444#L143 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 433#L146 assume !(node3_~m3~0 != ~nomsg~0); 364#L146-1 ~mode3~0 := 0; 432#L143-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 434#L168 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 435#L171 assume !(node4_~m4~0 != ~nomsg~0); 315#L171-1 ~mode4~0 := 0; 430#L168-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 431#L193 assume !(0 != ~mode5~0 % 256); 438#L206 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 452#L206-2 ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 427#L193-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 409#L218 assume !(0 != ~mode6~0 % 256); 410#L231 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 446#L231-2 ~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; 395#L218-2 havoc node7_#t~ite13, node7_~m7~0;havoc node7_~m7~0;node7_~m7~0 := ~nomsg~0; 398#L243 assume 0 != ~mode7~0 % 256;node7_~m7~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 400#L246 assume !(node7_~m7~0 != ~nomsg~0); 402#L246-1 ~mode7~0 := 0; 392#L243-2 havoc node8_#t~ite14, node8_~m8~0;havoc node8_~m8~0;node8_~m8~0 := ~nomsg~0; 393#L268 assume 0 != ~mode8~0 % 256;node8_~m8~0 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 353#L271 assume !(node8_~m8~0 != ~nomsg~0); 355#L271-1 ~mode8~0 := 0; 378#L268-2 ~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;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~p8_new~0;~p8_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 401#L548 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0 <= 1);check_~tmp~1 := 0; 346#L548-1 check_#res := check_~tmp~1; 387#L568 main_#t~ret49 := check_#res;main_~c1~0 := main_#t~ret49;havoc main_#t~ret49;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 388#L669 assume !(0 == assert_~arg % 256); 411#L664 main_#t~post50 := main_~i2~0;main_~i2~0 := 1 + main_#t~post50;havoc main_#t~post50; 342#L630-2 [2020-11-29 19:59:37,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:37,021 INFO L82 PathProgramCache]: Analyzing trace with hash 354076320, now seen corresponding path program 1 times [2020-11-29 19:59:37,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:59:37,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205753112] [2020-11-29 19:59:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:59:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:59:37,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:59:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:59:37,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:59:37,175 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:59:37,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:37,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1762149673, now seen corresponding path program 1 times [2020-11-29 19:59:37,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:59:37,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472823193] [2020-11-29 19:59:37,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:59:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:59:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:59:37,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472823193] [2020-11-29 19:59:37,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:59:37,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:59:37,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866082250] [2020-11-29 19:59:37,316 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:59:37,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:59:37,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:59:37,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:59:37,317 INFO L87 Difference]: Start difference. First operand 141 states and 186 transitions. cyclomatic complexity: 46 Second operand 5 states. [2020-11-29 19:59:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:59:37,392 INFO L93 Difference]: Finished difference Result 144 states and 188 transitions. [2020-11-29 19:59:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:59:37,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 188 transitions. [2020-11-29 19:59:37,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 74 [2020-11-29 19:59:37,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 141 states and 183 transitions. [2020-11-29 19:59:37,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 141 [2020-11-29 19:59:37,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 141 [2020-11-29 19:59:37,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 183 transitions. [2020-11-29 19:59:37,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:59:37,414 INFO L691 BuchiCegarLoop]: Abstraction has 141 states and 183 transitions. [2020-11-29 19:59:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 183 transitions. [2020-11-29 19:59:37,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2020-11-29 19:59:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-29 19:59:37,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 183 transitions. [2020-11-29 19:59:37,424 INFO L714 BuchiCegarLoop]: Abstraction has 141 states and 183 transitions. [2020-11-29 19:59:37,424 INFO L594 BuchiCegarLoop]: Abstraction has 141 states and 183 transitions. [2020-11-29 19:59:37,424 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:59:37,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 183 transitions. [2020-11-29 19:59:37,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 74 [2020-11-29 19:59:37,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:59:37,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:59:37,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:59:37,438 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:59:37,439 INFO L794 eck$LassoCheckResult]: Stem: 745#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0;~p8~0 := 0;~p8_old~0 := 0;~p8_new~0 := 0;~id8~0 := 0;~st8~0 := 0;~send8~0 := 0;~mode8~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[6 := #funAddr~node7.base], ~nodes~0.offset[6 := #funAddr~node7.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[7 := #funAddr~node8.base], ~nodes~0.offset[7 := #funAddr~node8.offset]; 630#L-1 havoc main_#res;havoc main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~ret48, main_#t~ret49, main_#t~post50, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet15;havoc main_#t~nondet15;~id1~0 := main_#t~nondet16;havoc main_#t~nondet16;~st1~0 := main_#t~nondet17;havoc main_#t~nondet17;~send1~0 := main_#t~nondet18;havoc main_#t~nondet18;~mode1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~id3~0 := main_#t~nondet24;havoc main_#t~nondet24;~st3~0 := main_#t~nondet25;havoc main_#t~nondet25;~send3~0 := main_#t~nondet26;havoc main_#t~nondet26;~mode3~0 := main_#t~nondet27;havoc main_#t~nondet27;~id4~0 := main_#t~nondet28;havoc main_#t~nondet28;~st4~0 := main_#t~nondet29;havoc main_#t~nondet29;~send4~0 := main_#t~nondet30;havoc main_#t~nondet30;~mode4~0 := main_#t~nondet31;havoc main_#t~nondet31;~id5~0 := main_#t~nondet32;havoc main_#t~nondet32;~st5~0 := main_#t~nondet33;havoc main_#t~nondet33;~send5~0 := main_#t~nondet34;havoc main_#t~nondet34;~mode5~0 := main_#t~nondet35;havoc main_#t~nondet35;~id6~0 := main_#t~nondet36;havoc main_#t~nondet36;~st6~0 := main_#t~nondet37;havoc main_#t~nondet37;~send6~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode6~0 := main_#t~nondet39;havoc main_#t~nondet39;~id7~0 := main_#t~nondet40;havoc main_#t~nondet40;~st7~0 := main_#t~nondet41;havoc main_#t~nondet41;~send7~0 := main_#t~nondet42;havoc main_#t~nondet42;~mode7~0 := main_#t~nondet43;havoc main_#t~nondet43;~id8~0 := main_#t~nondet44;havoc main_#t~nondet44;~st8~0 := main_#t~nondet45;havoc main_#t~nondet45;~send8~0 := main_#t~nondet46;havoc main_#t~nondet46;~mode8~0 := main_#t~nondet47;havoc main_#t~nondet47;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 631#L295 assume 0 == ~r1~0; 628#L296 assume ~id1~0 >= 0; 629#L297 assume 0 == ~st1~0; 716#L298 assume ~send1~0 == ~id1~0; 644#L299 assume 0 == ~mode1~0 % 256; 645#L300 assume ~id2~0 >= 0; 702#L301 assume 0 == ~st2~0; 703#L302 assume ~send2~0 == ~id2~0; 726#L303 assume 0 == ~mode2~0 % 256; 672#L304 assume ~id3~0 >= 0; 673#L305 assume 0 == ~st3~0; 722#L306 assume ~send3~0 == ~id3~0; 640#L307 assume 0 == ~mode3~0 % 256; 641#L308 assume ~id4~0 >= 0; 715#L309 assume 0 == ~st4~0; 624#L310 assume ~send4~0 == ~id4~0; 625#L311 assume 0 == ~mode4~0 % 256; 685#L312 assume ~id5~0 >= 0; 686#L313 assume 0 == ~st5~0; 740#L314 assume ~send5~0 == ~id5~0; 670#L315 assume 0 == ~mode5~0 % 256; 671#L316 assume ~id6~0 >= 0; 720#L317 assume 0 == ~st6~0; 638#L318 assume ~send6~0 == ~id6~0; 639#L319 assume 0 == ~mode6~0 % 256; 714#L320 assume ~id7~0 >= 0; 622#L321 assume 0 == ~st7~0; 623#L322 assume ~send7~0 == ~id7~0; 681#L323 assume 0 == ~mode7~0 % 256; 682#L324 assume ~id8~0 >= 0; 739#L325 assume 0 == ~st8~0; 668#L326 assume ~send8~0 == ~id8~0; 669#L327 assume 0 == ~mode8~0 % 256; 719#L328 assume ~id1~0 != ~id2~0; 634#L329 assume ~id1~0 != ~id3~0; 635#L330 assume ~id1~0 != ~id4~0; 713#L331 assume ~id1~0 != ~id5~0; 620#L332 assume ~id1~0 != ~id6~0; 621#L333 assume ~id1~0 != ~id7~0; 679#L334 assume ~id1~0 != ~id8~0; 680#L335 assume ~id2~0 != ~id3~0; 738#L336 assume ~id2~0 != ~id4~0; 666#L337 assume ~id2~0 != ~id5~0; 667#L338 assume ~id2~0 != ~id6~0; 718#L339 assume ~id2~0 != ~id7~0; 632#L340 assume ~id2~0 != ~id8~0; 633#L341 assume ~id3~0 != ~id4~0; 712#L342 assume ~id3~0 != ~id5~0; 618#L343 assume ~id3~0 != ~id6~0; 619#L344 assume ~id3~0 != ~id7~0; 676#L345 assume ~id3~0 != ~id8~0; 677#L346 assume ~id4~0 != ~id5~0; 737#L347 assume ~id4~0 != ~id6~0; 664#L348 assume ~id4~0 != ~id7~0; 665#L349 assume ~id4~0 != ~id8~0; 717#L350 assume ~id5~0 != ~id6~0; 661#L351 assume ~id5~0 != ~id7~0; 662#L352 assume ~id5~0 != ~id8~0; 711#L353 assume ~id6~0 != ~id7~0; 616#L354 assume ~id6~0 != ~id8~0; 617#L355 assume ~id7~0 != ~id8~0;init_~tmp~0 := 1; 709#L295-1 init_#res := init_~tmp~0; 710#L540 main_#t~ret48 := init_#res;main_~i2~0 := main_#t~ret48;havoc main_#t~ret48;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; 723#L22 assume !(0 == assume_abort_if_not_~cond); 636#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;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~nomsg~0;~p8_new~0 := ~nomsg~0;main_~i2~0 := 0; 637#L630-2 [2020-11-29 19:59:37,439 INFO L796 eck$LassoCheckResult]: Loop: 637#L630-2 assume !!(main_~i2~0 < 16);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 653#L92 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 := ~p8_old~0;~p8_old~0 := ~nomsg~0; 654#L96 assume !(node1_~m1~0 != ~nomsg~0); 705#L96-1 ~mode1~0 := 0; 627#L92-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 652#L118 assume !(0 != ~mode2~0 % 256); 648#L131 assume !(~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0);node2_#t~ite8 := ~p2_new~0; 646#L131-2 ~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; 647#L118-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 741#L143 assume !(0 != ~mode3~0 % 256); 742#L156 assume !(~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0);node3_#t~ite9 := ~p3_new~0; 750#L156-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 729#L143-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 731#L168 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 732#L171 assume !(node4_~m4~0 != ~nomsg~0); 612#L171-1 ~mode4~0 := 0; 727#L168-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 728#L193 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 725#L196 assume !(node5_~m5~0 != ~nomsg~0); 614#L196-1 ~mode5~0 := 0; 724#L193-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 706#L218 assume !(0 != ~mode6~0 % 256); 707#L231 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 743#L231-2 ~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; 692#L218-2 havoc node7_#t~ite13, node7_~m7~0;havoc node7_~m7~0;node7_~m7~0 := ~nomsg~0; 695#L243 assume !(0 != ~mode7~0 % 256); 696#L256 assume ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0;node7_#t~ite13 := ~send7~0; 734#L256-2 ~p7_new~0 := (if node7_#t~ite13 % 256 <= 127 then node7_#t~ite13 % 256 else node7_#t~ite13 % 256 - 256);havoc node7_#t~ite13;~mode7~0 := 1; 689#L243-2 havoc node8_#t~ite14, node8_~m8~0;havoc node8_~m8~0;node8_~m8~0 := ~nomsg~0; 690#L268 assume 0 != ~mode8~0 % 256;node8_~m8~0 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 649#L271 assume !(node8_~m8~0 != ~nomsg~0); 651#L271-1 ~mode8~0 := 0; 674#L268-2 ~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;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~p8_new~0;~p8_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 698#L548 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0 <= 1; 675#L549 assume ~r1~0 >= 8; 643#L553 assume ~r1~0 < 8;check_~tmp~1 := 1; 688#L548-1 check_#res := check_~tmp~1; 683#L568 main_#t~ret49 := check_#res;main_~c1~0 := main_#t~ret49;havoc main_#t~ret49;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 684#L669 assume !(0 == assert_~arg % 256); 708#L664 main_#t~post50 := main_~i2~0;main_~i2~0 := 1 + main_#t~post50;havoc main_#t~post50; 637#L630-2 [2020-11-29 19:59:37,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:37,440 INFO L82 PathProgramCache]: Analyzing trace with hash 354076320, now seen corresponding path program 2 times [2020-11-29 19:59:37,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:59:37,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838322076] [2020-11-29 19:59:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:59:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:59:37,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:59:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:59:37,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:59:37,619 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:59:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:37,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1180749715, now seen corresponding path program 1 times [2020-11-29 19:59:37,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:59:37,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342813130] [2020-11-29 19:59:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:59:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:59:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:59:37,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342813130] [2020-11-29 19:59:37,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:59:37,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:59:37,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070758173] [2020-11-29 19:59:37,657 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:59:37,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:59:37,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:59:37,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:59:37,658 INFO L87 Difference]: Start difference. First operand 141 states and 183 transitions. cyclomatic complexity: 43 Second operand 3 states. [2020-11-29 19:59:37,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:59:37,710 INFO L93 Difference]: Finished difference Result 209 states and 288 transitions. [2020-11-29 19:59:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:59:37,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 288 transitions. [2020-11-29 19:59:37,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 142 [2020-11-29 19:59:37,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 209 states and 288 transitions. [2020-11-29 19:59:37,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 209 [2020-11-29 19:59:37,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 209 [2020-11-29 19:59:37,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 209 states and 288 transitions. [2020-11-29 19:59:37,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:59:37,725 INFO L691 BuchiCegarLoop]: Abstraction has 209 states and 288 transitions. [2020-11-29 19:59:37,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states and 288 transitions. [2020-11-29 19:59:37,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-11-29 19:59:37,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-11-29 19:59:37,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 288 transitions. [2020-11-29 19:59:37,754 INFO L714 BuchiCegarLoop]: Abstraction has 209 states and 288 transitions. [2020-11-29 19:59:37,756 INFO L594 BuchiCegarLoop]: Abstraction has 209 states and 288 transitions. [2020-11-29 19:59:37,756 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:59:37,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 209 states and 288 transitions. [2020-11-29 19:59:37,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 142 [2020-11-29 19:59:37,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:59:37,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:59:37,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:59:37,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:59:37,766 INFO L794 eck$LassoCheckResult]: Stem: 1103#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0;~p8~0 := 0;~p8_old~0 := 0;~p8_new~0 := 0;~id8~0 := 0;~st8~0 := 0;~send8~0 := 0;~mode8~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[6 := #funAddr~node7.base], ~nodes~0.offset[6 := #funAddr~node7.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[7 := #funAddr~node8.base], ~nodes~0.offset[7 := #funAddr~node8.offset]; 986#L-1 havoc main_#res;havoc main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~ret48, main_#t~ret49, main_#t~post50, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet15;havoc main_#t~nondet15;~id1~0 := main_#t~nondet16;havoc main_#t~nondet16;~st1~0 := main_#t~nondet17;havoc main_#t~nondet17;~send1~0 := main_#t~nondet18;havoc main_#t~nondet18;~mode1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~id3~0 := main_#t~nondet24;havoc main_#t~nondet24;~st3~0 := main_#t~nondet25;havoc main_#t~nondet25;~send3~0 := main_#t~nondet26;havoc main_#t~nondet26;~mode3~0 := main_#t~nondet27;havoc main_#t~nondet27;~id4~0 := main_#t~nondet28;havoc main_#t~nondet28;~st4~0 := main_#t~nondet29;havoc main_#t~nondet29;~send4~0 := main_#t~nondet30;havoc main_#t~nondet30;~mode4~0 := main_#t~nondet31;havoc main_#t~nondet31;~id5~0 := main_#t~nondet32;havoc main_#t~nondet32;~st5~0 := main_#t~nondet33;havoc main_#t~nondet33;~send5~0 := main_#t~nondet34;havoc main_#t~nondet34;~mode5~0 := main_#t~nondet35;havoc main_#t~nondet35;~id6~0 := main_#t~nondet36;havoc main_#t~nondet36;~st6~0 := main_#t~nondet37;havoc main_#t~nondet37;~send6~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode6~0 := main_#t~nondet39;havoc main_#t~nondet39;~id7~0 := main_#t~nondet40;havoc main_#t~nondet40;~st7~0 := main_#t~nondet41;havoc main_#t~nondet41;~send7~0 := main_#t~nondet42;havoc main_#t~nondet42;~mode7~0 := main_#t~nondet43;havoc main_#t~nondet43;~id8~0 := main_#t~nondet44;havoc main_#t~nondet44;~st8~0 := main_#t~nondet45;havoc main_#t~nondet45;~send8~0 := main_#t~nondet46;havoc main_#t~nondet46;~mode8~0 := main_#t~nondet47;havoc main_#t~nondet47;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 987#L295 assume 0 == ~r1~0; 982#L296 assume ~id1~0 >= 0; 983#L297 assume 0 == ~st1~0; 1074#L298 assume ~send1~0 == ~id1~0; 998#L299 assume 0 == ~mode1~0 % 256; 999#L300 assume ~id2~0 >= 0; 1059#L301 assume 0 == ~st2~0; 1060#L302 assume ~send2~0 == ~id2~0; 1084#L303 assume 0 == ~mode2~0 % 256; 1028#L304 assume ~id3~0 >= 0; 1029#L305 assume 0 == ~st3~0; 1079#L306 assume ~send3~0 == ~id3~0; 996#L307 assume 0 == ~mode3~0 % 256; 997#L308 assume ~id4~0 >= 0; 1073#L309 assume 0 == ~st4~0; 980#L310 assume ~send4~0 == ~id4~0; 981#L311 assume 0 == ~mode4~0 % 256; 1040#L312 assume ~id5~0 >= 0; 1041#L313 assume 0 == ~st5~0; 1098#L314 assume ~send5~0 == ~id5~0; 1026#L315 assume 0 == ~mode5~0 % 256; 1027#L316 assume ~id6~0 >= 0; 1078#L317 assume 0 == ~st6~0; 992#L318 assume ~send6~0 == ~id6~0; 993#L319 assume 0 == ~mode6~0 % 256; 1072#L320 assume ~id7~0 >= 0; 978#L321 assume 0 == ~st7~0; 979#L322 assume ~send7~0 == ~id7~0; 1038#L323 assume 0 == ~mode7~0 % 256; 1039#L324 assume ~id8~0 >= 0; 1097#L325 assume 0 == ~st8~0; 1024#L326 assume ~send8~0 == ~id8~0; 1025#L327 assume 0 == ~mode8~0 % 256; 1077#L328 assume ~id1~0 != ~id2~0; 990#L329 assume ~id1~0 != ~id3~0; 991#L330 assume ~id1~0 != ~id4~0; 1071#L331 assume ~id1~0 != ~id5~0; 976#L332 assume ~id1~0 != ~id6~0; 977#L333 assume ~id1~0 != ~id7~0; 1036#L334 assume ~id1~0 != ~id8~0; 1037#L335 assume ~id2~0 != ~id3~0; 1096#L336 assume ~id2~0 != ~id4~0; 1022#L337 assume ~id2~0 != ~id5~0; 1023#L338 assume ~id2~0 != ~id6~0; 1076#L339 assume ~id2~0 != ~id7~0; 988#L340 assume ~id2~0 != ~id8~0; 989#L341 assume ~id3~0 != ~id4~0; 1070#L342 assume ~id3~0 != ~id5~0; 974#L343 assume ~id3~0 != ~id6~0; 975#L344 assume ~id3~0 != ~id7~0; 1033#L345 assume ~id3~0 != ~id8~0; 1034#L346 assume ~id4~0 != ~id5~0; 1095#L347 assume ~id4~0 != ~id6~0; 1020#L348 assume ~id4~0 != ~id7~0; 1021#L349 assume ~id4~0 != ~id8~0; 1075#L350 assume ~id5~0 != ~id6~0; 1017#L351 assume ~id5~0 != ~id7~0; 1018#L352 assume ~id5~0 != ~id8~0; 1069#L353 assume ~id6~0 != ~id7~0; 972#L354 assume ~id6~0 != ~id8~0; 973#L355 assume ~id7~0 != ~id8~0;init_~tmp~0 := 1; 1067#L295-1 init_#res := init_~tmp~0; 1068#L540 main_#t~ret48 := init_#res;main_~i2~0 := main_#t~ret48;havoc main_#t~ret48;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; 1081#L22 assume !(0 == assume_abort_if_not_~cond); 994#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;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~nomsg~0;~p8_new~0 := ~nomsg~0;main_~i2~0 := 0; 995#L630-2 [2020-11-29 19:59:37,767 INFO L796 eck$LassoCheckResult]: Loop: 995#L630-2 assume !!(main_~i2~0 < 16);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 1171#L92 assume !(0 != ~mode1~0 % 256); 1170#L106 assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite7 := ~send1~0; 1169#L106-2 ~p1_new~0 := (if node1_#t~ite7 % 256 <= 127 then node1_#t~ite7 % 256 else node1_#t~ite7 % 256 - 256);havoc node1_#t~ite7;~mode1~0 := 1; 1107#L92-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 1168#L118 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 1165#L121 assume !(node2_~m2~0 != ~nomsg~0); 1163#L121-1 ~mode2~0 := 0; 1161#L118-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 1160#L143 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 1157#L146 assume !(node3_~m3~0 != ~nomsg~0); 1155#L146-1 ~mode3~0 := 0; 1153#L143-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 1152#L168 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 1149#L171 assume !(node4_~m4~0 != ~nomsg~0); 1147#L171-1 ~mode4~0 := 0; 1145#L168-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 1144#L193 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 1142#L196 assume !(node5_~m5~0 != ~nomsg~0); 1139#L196-1 ~mode5~0 := 0; 1137#L193-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 1136#L218 assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 1134#L221 assume !(node6_~m6~0 != ~nomsg~0); 1131#L221-1 ~mode6~0 := 0; 1129#L218-2 havoc node7_#t~ite13, node7_~m7~0;havoc node7_~m7~0;node7_~m7~0 := ~nomsg~0; 1128#L243 assume 0 != ~mode7~0 % 256;node7_~m7~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 1126#L246 assume !(node7_~m7~0 != ~nomsg~0); 1123#L246-1 ~mode7~0 := 0; 1121#L243-2 havoc node8_#t~ite14, node8_~m8~0;havoc node8_~m8~0;node8_~m8~0 := ~nomsg~0; 1120#L268 assume 0 != ~mode8~0 % 256;node8_~m8~0 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 1118#L271 assume !(node8_~m8~0 != ~nomsg~0); 1115#L271-1 ~mode8~0 := 0; 1113#L268-2 ~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;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~p8_new~0;~p8_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1112#L548 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0 <= 1; 1111#L549 assume !(~r1~0 >= 8); 1000#L552 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0; 1001#L553 assume ~r1~0 < 8;check_~tmp~1 := 1; 1175#L548-1 check_#res := check_~tmp~1; 1174#L568 main_#t~ret49 := check_#res;main_~c1~0 := main_#t~ret49;havoc main_#t~ret49;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1173#L669 assume !(0 == assert_~arg % 256); 1172#L664 main_#t~post50 := main_~i2~0;main_~i2~0 := 1 + main_#t~post50;havoc main_#t~post50; 995#L630-2 [2020-11-29 19:59:37,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:37,773 INFO L82 PathProgramCache]: Analyzing trace with hash 354076320, now seen corresponding path program 3 times [2020-11-29 19:59:37,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:59:37,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790373473] [2020-11-29 19:59:37,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:59:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:59:37,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:59:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:59:37,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:59:37,919 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:59:37,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:37,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1336028871, now seen corresponding path program 1 times [2020-11-29 19:59:37,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:59:37,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481607264] [2020-11-29 19:59:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:59:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:59:37,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:59:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:59:37,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:59:37,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:59:37,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:37,964 INFO L82 PathProgramCache]: Analyzing trace with hash 2138425722, now seen corresponding path program 1 times [2020-11-29 19:59:37,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:59:37,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668033112] [2020-11-29 19:59:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:59:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:59:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:59:38,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668033112] [2020-11-29 19:59:38,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:59:38,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:59:38,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181957468] [2020-11-29 19:59:39,245 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-11-29 19:59:40,034 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-11-29 19:59:40,046 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:59:40,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:59:40,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:59:40,069 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:59:40,069 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 19:59:40,070 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:40,070 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:59:40,070 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:59:40,070 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.8.ufo.BOUNDED-16.pals.c_Iteration4_Loop [2020-11-29 19:59:40,070 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:59:40,071 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:59:40,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,533 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-11-29 19:59:40,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:40,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:41,432 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-11-29 19:59:44,962 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 135 DAG size of output: 131 [2020-11-29 19:59:45,115 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:59:45,116 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:59:45,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:59:45,133 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:59:45,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 19:59:45,185 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:45,299 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 19:59:45,301 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:59:45,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:59:45,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:59:45,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:59:45,301 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:59:45,301 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:45,301 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:59:45,301 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:59:45,301 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.8.ufo.BOUNDED-16.pals.c_Iteration4_Loop [2020-11-29 19:59:45,301 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:59:45,301 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:59:45,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,708 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-11-29 19:59:45,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:45,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:59:46,539 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-11-29 19:59:49,630 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 135 DAG size of output: 131 [2020-11-29 19:59:49,659 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:59:49,664 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:49,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:49,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:49,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:49,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:49,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:49,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:49,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:49,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:49,690 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:49,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:49,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:49,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:49,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:49,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:49,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:49,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:49,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:49,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:49,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:49,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:49,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:49,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:49,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:49,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:59:49,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:59:49,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:49,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:49,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:49,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:49,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:49,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:49,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:49,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:49,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:49,800 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:49,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:49,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:49,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:49,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:49,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:49,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:49,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:49,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:49,828 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:49,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:49,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:49,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:49,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:49,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:49,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:49,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:49,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:49,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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 [2020-11-29 19:59:49,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:49,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:49,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:49,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:49,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:49,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:49,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:49,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:49,890 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:49,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:49,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:49,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:49,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:49,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:49,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:49,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:49,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:49,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:49,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:49,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:49,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:49,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:49,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:49,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:59:49,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:59:49,980 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:59:50,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:50,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:50,023 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 [2020-11-29 19:59:50,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:50,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:59:50,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:59:50,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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 [2020-11-29 19:59:50,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,108 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:59:50,108 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:59:50,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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 [2020-11-29 19:59:50,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:50,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:50,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:50,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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 [2020-11-29 19:59:50,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:50,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:50,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:50,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:50,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:50,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:50,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:50,191 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:50,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,221 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:59:50,221 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:59:50,238 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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) [2020-11-29 19:59:50,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:59:50,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:59:50,300 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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) [2020-11-29 19:59:50,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:50,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:50,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:50,351 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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 [2020-11-29 19:59:50,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:50,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:50,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:50,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:50,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:59:50,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:59:50,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:50,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:50,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:50,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:50,452 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:50,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:50,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:50,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:50,477 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:50,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:59:50,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:59:50,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:59:50,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:59:50,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:59:50,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:59:50,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:59:50,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:59:50,503 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:59:50,507 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 19:59:50,507 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_a1b6157a-31e1-4dea-ba61-45c9723965d2/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:59:50,515 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:59:50,516 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 19:59:50,516 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:59:50,516 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 31 Supporting invariants [] [2020-11-29 19:59:50,546 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 19:59:50,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:59:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:59:50,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:59:50,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:59:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:59:50,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:59:50,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:59:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:59:50,840 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:59:50,841 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 209 states and 288 transitions. cyclomatic complexity: 80 Second operand 3 states. [2020-11-29 19:59:50,919 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 209 states and 288 transitions. cyclomatic complexity: 80. Second operand 3 states. Result 350 states and 509 transitions. Complement of second has 4 states. [2020-11-29 19:59:50,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 19:59:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:59:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2020-11-29 19:59:50,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 67 letters. Loop has 41 letters. [2020-11-29 19:59:50,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:59:50,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 108 letters. Loop has 41 letters. [2020-11-29 19:59:50,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:59:50,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 67 letters. Loop has 82 letters. [2020-11-29 19:59:50,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:59:50,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 350 states and 509 transitions. [2020-11-29 19:59:50,939 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:59:50,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 350 states to 0 states and 0 transitions. [2020-11-29 19:59:50,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:59:50,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:59:50,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:59:50,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:59:50,940 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:59:50,940 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:59:50,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:59:50,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:59:50,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:59:50,942 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-29 19:59:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:59:50,942 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 19:59:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:59:50,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 19:59:50,943 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:59:50,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:59:50,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:59:50,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:59:50,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:59:50,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:59:50,944 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:59:50,944 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:59:50,944 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:59:50,944 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 19:59:50,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:59:50,945 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:59:50,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:59:50,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:59:50 BoogieIcfgContainer [2020-11-29 19:59:50,950 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:59:50,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:59:50,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:59:50,951 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:59:50,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:59:35" (3/4) ... [2020-11-29 19:59:50,955 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:59:50,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:59:50,957 INFO L168 Benchmark]: Toolchain (without parser) took 16896.21 ms. Allocated memory was 107.0 MB in the beginning and 308.3 MB in the end (delta: 201.3 MB). Free memory was 77.8 MB in the beginning and 238.6 MB in the end (delta: -160.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:59:50,957 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory was 63.7 MB in the beginning and 63.6 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:59:50,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.02 ms. Allocated memory is still 107.0 MB. Free memory was 77.4 MB in the beginning and 76.6 MB in the end (delta: 803.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:59:50,964 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.31 ms. Allocated memory is still 107.0 MB. Free memory was 76.6 MB in the beginning and 73.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:59:50,964 INFO L168 Benchmark]: Boogie Preprocessor took 90.50 ms. Allocated memory is still 107.0 MB. Free memory was 73.7 MB in the beginning and 70.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:59:50,965 INFO L168 Benchmark]: RCFGBuilder took 1153.28 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 70.8 MB in the beginning and 77.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:59:50,967 INFO L168 Benchmark]: BuchiAutomizer took 15020.28 ms. Allocated memory was 130.0 MB in the beginning and 308.3 MB in the end (delta: 178.3 MB). Free memory was 77.6 MB in the beginning and 239.6 MB in the end (delta: -162.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:59:50,970 INFO L168 Benchmark]: Witness Printer took 4.27 ms. Allocated memory is still 308.3 MB. Free memory was 239.6 MB in the beginning and 238.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:59:50,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory was 63.7 MB in the beginning and 63.6 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 532.02 ms. Allocated memory is still 107.0 MB. Free memory was 77.4 MB in the beginning and 76.6 MB in the end (delta: 803.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.31 ms. Allocated memory is still 107.0 MB. Free memory was 76.6 MB in the beginning and 73.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.50 ms. Allocated memory is still 107.0 MB. Free memory was 73.7 MB in the beginning and 70.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1153.28 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 70.8 MB in the beginning and 77.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 15020.28 ms. Allocated memory was 130.0 MB in the beginning and 308.3 MB in the end (delta: 178.3 MB). Free memory was 77.6 MB in the beginning and 239.6 MB in the end (delta: -162.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.27 ms. Allocated memory is still 308.3 MB. Free memory was 239.6 MB in the beginning and 238.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 31 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 14.9s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 13.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 209 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 895 SDtfs, 290 SDslu, 1519 SDs, 0 SdLazy, 36 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital234 mio100 ax141 hnf109 lsp40 ukn83 mio100 lsp100 div125 bol100 ite100 ukn100 eq200 hnf78 smp100 dnf734 smp49 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...