./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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 68b032ddca4592549c1dc7e496e27927c24c2699 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:36:19,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:36:19,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:36:19,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:36:19,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:36:19,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:36:19,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:36:19,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:36:19,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:36:19,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:36:19,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:36:19,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:36:19,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:36:19,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:36:19,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:36:19,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:36:19,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:36:19,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:36:19,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:36:19,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:36:19,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:36:19,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:36:19,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:36:19,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:36:19,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:36:19,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:36:19,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:36:19,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:36:19,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:36:19,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:36:19,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:36:19,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:36:19,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:36:19,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:36:19,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:36:19,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:36:19,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:36:19,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:36:19,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:36:19,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:36:19,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:36:19,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 21:36:19,671 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:36:19,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:36:19,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:36:19,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:36:19,676 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:36:19,677 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 21:36:19,677 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 21:36:19,677 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 21:36:19,677 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 21:36:19,677 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 21:36:19,678 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 21:36:19,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:36:19,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:36:19,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:36:19,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:36:19,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:36:19,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:36:19,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 21:36:19,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 21:36:19,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 21:36:19,680 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:36:19,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:36:19,681 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 21:36:19,681 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:36:19,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 21:36:19,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:36:19,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:36:19,682 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 21:36:19,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:36:19,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:36:19,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:36:19,683 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 21:36:19,684 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 21:36:19,684 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_ef410556-81e3-465d-a2d9-0431f50c474c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b032ddca4592549c1dc7e496e27927c24c2699 [2020-11-29 21:36:19,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:36:20,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:36:20,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:36:20,015 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:36:20,016 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:36:20,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-11-29 21:36:20,097 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/data/4d8763d25/a81b3968e7934baa96cafb4819cb92f1/FLAG0e785eaa8 [2020-11-29 21:36:20,719 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:36:20,720 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-11-29 21:36:20,738 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/data/4d8763d25/a81b3968e7934baa96cafb4819cb92f1/FLAG0e785eaa8 [2020-11-29 21:36:21,013 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/data/4d8763d25/a81b3968e7934baa96cafb4819cb92f1 [2020-11-29 21:36:21,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:36:21,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:36:21,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:36:21,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:36:21,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:36:21,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624a4881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21, skipping insertion in model container [2020-11-29 21:36:21,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:36:21,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:36:21,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:36:21,357 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:36:21,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:36:21,511 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:36:21,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21 WrapperNode [2020-11-29 21:36:21,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:36:21,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:36:21,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:36:21,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:36:21,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:36:21,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:36:21,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:36:21,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:36:21,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... [2020-11-29 21:36:21,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:36:21,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:36:21,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:36:21,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:36:21,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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 21:36:21,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:36:21,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:36:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:36:21,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:36:22,803 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:36:22,805 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-11-29 21:36:22,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:22 BoogieIcfgContainer [2020-11-29 21:36:22,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:36:22,808 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 21:36:22,808 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 21:36:22,812 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 21:36:22,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:36:22,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 09:36:21" (1/3) ... [2020-11-29 21:36:22,814 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f6eb341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:36:22, skipping insertion in model container [2020-11-29 21:36:22,814 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:36:22,814 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:21" (2/3) ... [2020-11-29 21:36:22,814 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f6eb341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:36:22, skipping insertion in model container [2020-11-29 21:36:22,814 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:36:22,815 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:22" (3/3) ... [2020-11-29 21:36:22,816 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-11-29 21:36:22,874 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 21:36:22,874 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 21:36:22,874 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 21:36:22,874 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:36:22,875 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:36:22,875 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 21:36:22,875 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:36:22,875 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 21:36:22,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states. [2020-11-29 21:36:22,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2020-11-29 21:36:22,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:36:22,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:36:22,954 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:36:22,954 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:36:22,955 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 21:36:22,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states. [2020-11-29 21:36:22,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2020-11-29 21:36:22,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:36:22,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:36:22,975 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:36:22,975 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:36:22,988 INFO L794 eck$LassoCheckResult]: Stem: 106#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(41);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_#t~post45, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~newmax1~0 := main_#t~nondet26;havoc main_#t~nondet26;~id2~0 := main_#t~nondet27;havoc main_#t~nondet27;~r2~0 := main_#t~nondet28;havoc main_#t~nondet28;~st2~0 := main_#t~nondet29;havoc main_#t~nondet29;~nl2~0 := main_#t~nondet30;havoc main_#t~nondet30;~m2~0 := main_#t~nondet31;havoc main_#t~nondet31;~max2~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode2~0 := main_#t~nondet33;havoc main_#t~nondet33;~newmax2~0 := main_#t~nondet34;havoc main_#t~nondet34;~id3~0 := main_#t~nondet35;havoc main_#t~nondet35;~r3~0 := main_#t~nondet36;havoc main_#t~nondet36;~st3~0 := main_#t~nondet37;havoc main_#t~nondet37;~nl3~0 := main_#t~nondet38;havoc main_#t~nondet38;~m3~0 := main_#t~nondet39;havoc main_#t~nondet39;~max3~0 := main_#t~nondet40;havoc main_#t~nondet40;~mode3~0 := main_#t~nondet41;havoc main_#t~nondet41;~newmax3~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 141#L258true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 130#L261-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 23#L271true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 7#L274-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 61#L284true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 50#L287-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 104#L297true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 107#L300-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 11#L310true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 134#L313-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 47#L323true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 42#L326-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 92#L336true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 96#L336-1true init_#res := init_~tmp___5~0; 84#L457true main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;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; 16#L21true assume !(0 == assume_abort_if_not_~cond); 53#L20true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 49#L568-2true [2020-11-29 21:36:22,994 INFO L796 eck$LassoCheckResult]: Loop: 49#L568-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 117#L82true assume !(0 != ~mode1~0 % 256); 113#L110true assume !(~r1~0 < 2); 111#L110-1true ~mode1~0 := 1; 116#L82-2true havoc node2_#t~ite9, node2_#t~ite10, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 46#L133true assume !(0 != ~mode2~0 % 256); 35#L161true assume !(~r2~0 < 2); 34#L161-1true ~mode2~0 := 1; 58#L133-2true havoc node3_#t~ite11, node3_#t~ite12, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 129#L184true assume !(0 != ~mode3~0 % 256); 82#L212true assume !(~r3~0 < 2); 81#L212-1true ~mode3~0 := 1; 124#L184-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 110#L465true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 112#L465-1true check_#res := check_~tmp~1; 48#L513true main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 65#L598true assume !(0 == assert_~arg % 256); 40#L593true main_#t~post45 := main_~i2~0;main_~i2~0 := 1 + main_#t~post45;havoc main_#t~post45; 49#L568-2true [2020-11-29 21:36:23,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:23,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 1 times [2020-11-29 21:36:23,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:23,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39160002] [2020-11-29 21:36:23,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:23,327 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 21:36:23,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39160002] [2020-11-29 21:36:23,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:36:23,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:36:23,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829104721] [2020-11-29 21:36:23,334 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 21:36:23,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:23,335 INFO L82 PathProgramCache]: Analyzing trace with hash 339208178, now seen corresponding path program 1 times [2020-11-29 21:36:23,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:23,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123370672] [2020-11-29 21:36:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:23,460 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 21:36:23,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123370672] [2020-11-29 21:36:23,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:36:23,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:36:23,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471264719] [2020-11-29 21:36:23,462 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:36:23,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:36:23,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:36:23,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:36:23,481 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 5 states. [2020-11-29 21:36:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:36:23,621 INFO L93 Difference]: Finished difference Result 146 states and 247 transitions. [2020-11-29 21:36:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:36:23,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 247 transitions. [2020-11-29 21:36:23,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2020-11-29 21:36:23,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 137 states and 231 transitions. [2020-11-29 21:36:23,636 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2020-11-29 21:36:23,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 137 [2020-11-29 21:36:23,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 231 transitions. [2020-11-29 21:36:23,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:36:23,640 INFO L691 BuchiCegarLoop]: Abstraction has 137 states and 231 transitions. [2020-11-29 21:36:23,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 231 transitions. [2020-11-29 21:36:23,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-11-29 21:36:23,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-29 21:36:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 231 transitions. [2020-11-29 21:36:23,677 INFO L714 BuchiCegarLoop]: Abstraction has 137 states and 231 transitions. [2020-11-29 21:36:23,677 INFO L594 BuchiCegarLoop]: Abstraction has 137 states and 231 transitions. [2020-11-29 21:36:23,677 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 21:36:23,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 231 transitions. [2020-11-29 21:36:23,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2020-11-29 21:36:23,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:36:23,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:36:23,681 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:36:23,681 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:36:23,681 INFO L794 eck$LassoCheckResult]: Stem: 439#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(41);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0; 333#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_#t~post45, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~newmax1~0 := main_#t~nondet26;havoc main_#t~nondet26;~id2~0 := main_#t~nondet27;havoc main_#t~nondet27;~r2~0 := main_#t~nondet28;havoc main_#t~nondet28;~st2~0 := main_#t~nondet29;havoc main_#t~nondet29;~nl2~0 := main_#t~nondet30;havoc main_#t~nondet30;~m2~0 := main_#t~nondet31;havoc main_#t~nondet31;~max2~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode2~0 := main_#t~nondet33;havoc main_#t~nondet33;~newmax2~0 := main_#t~nondet34;havoc main_#t~nondet34;~id3~0 := main_#t~nondet35;havoc main_#t~nondet35;~r3~0 := main_#t~nondet36;havoc main_#t~nondet36;~st3~0 := main_#t~nondet37;havoc main_#t~nondet37;~nl3~0 := main_#t~nondet38;havoc main_#t~nondet38;~m3~0 := main_#t~nondet39;havoc main_#t~nondet39;~max3~0 := main_#t~nondet40;havoc main_#t~nondet40;~mode3~0 := main_#t~nondet41;havoc main_#t~nondet41;~newmax3~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 334#L258 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 405#L261-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 346#L271 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 319#L274-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 320#L284 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 340#L287-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 394#L297 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 402#L300-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 325#L310 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 326#L313-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 389#L323 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 378#L326-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 379#L336 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 316#L336-1 init_#res := init_~tmp___5~0; 428#L457 main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 337#L21 assume !(0 == assume_abort_if_not_~cond); 338#L20 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 373#L568-2 [2020-11-29 21:36:23,682 INFO L796 eck$LassoCheckResult]: Loop: 373#L568-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 392#L82 assume !(0 != ~mode1~0 % 256); 442#L110 assume !(~r1~0 < 2); 362#L110-1 ~mode1~0 := 1; 441#L82-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 387#L133 assume !(0 != ~mode2~0 % 256); 365#L161 assume !(~r2~0 < 2); 354#L161-1 ~mode2~0 := 1; 364#L133-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 403#L184 assume !(0 != ~mode3~0 % 256); 426#L212 assume !(~r3~0 < 2); 314#L212-1 ~mode3~0 := 1; 425#L184-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 440#L465 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 399#L466 assume ~st1~0 + ~nl1~0 <= 1; 400#L467 assume ~st2~0 + ~nl2~0 <= 1; 427#L468 assume ~st3~0 + ~nl3~0 <= 1; 393#L469 assume ~r1~0 >= 2; 351#L473 assume ~r1~0 < 2; 398#L478 assume ~r1~0 >= 2; 347#L483 assume ~r1~0 < 2;check_~tmp~1 := 1; 348#L465-1 check_#res := check_~tmp~1; 390#L513 main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 391#L598 assume !(0 == assert_~arg % 256); 372#L593 main_#t~post45 := main_~i2~0;main_~i2~0 := 1 + main_#t~post45;havoc main_#t~post45; 373#L568-2 [2020-11-29 21:36:23,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:23,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 2 times [2020-11-29 21:36:23,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:23,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104175513] [2020-11-29 21:36:23,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:23,786 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 21:36:23,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104175513] [2020-11-29 21:36:23,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:36:23,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:36:23,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342956150] [2020-11-29 21:36:23,788 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 21:36:23,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:23,788 INFO L82 PathProgramCache]: Analyzing trace with hash -191057990, now seen corresponding path program 1 times [2020-11-29 21:36:23,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:23,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254637937] [2020-11-29 21:36:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:23,834 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 21:36:23,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254637937] [2020-11-29 21:36:23,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:36:23,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:36:23,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445293108] [2020-11-29 21:36:23,835 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:36:23,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:36:23,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:36:23,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:36:23,837 INFO L87 Difference]: Start difference. First operand 137 states and 231 transitions. cyclomatic complexity: 95 Second operand 5 states. [2020-11-29 21:36:23,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:36:23,930 INFO L93 Difference]: Finished difference Result 140 states and 233 transitions. [2020-11-29 21:36:23,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:36:23,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 233 transitions. [2020-11-29 21:36:23,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2020-11-29 21:36:23,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 137 states and 201 transitions. [2020-11-29 21:36:23,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2020-11-29 21:36:23,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 137 [2020-11-29 21:36:23,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 201 transitions. [2020-11-29 21:36:23,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:36:23,940 INFO L691 BuchiCegarLoop]: Abstraction has 137 states and 201 transitions. [2020-11-29 21:36:23,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 201 transitions. [2020-11-29 21:36:23,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-11-29 21:36:23,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-29 21:36:23,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 201 transitions. [2020-11-29 21:36:23,958 INFO L714 BuchiCegarLoop]: Abstraction has 137 states and 201 transitions. [2020-11-29 21:36:23,958 INFO L594 BuchiCegarLoop]: Abstraction has 137 states and 201 transitions. [2020-11-29 21:36:23,958 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 21:36:23,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 201 transitions. [2020-11-29 21:36:23,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2020-11-29 21:36:23,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:36:23,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:36:23,962 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] [2020-11-29 21:36:23,962 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:36:23,962 INFO L794 eck$LassoCheckResult]: Stem: 729#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(41);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0; 623#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_#t~post45, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~newmax1~0 := main_#t~nondet26;havoc main_#t~nondet26;~id2~0 := main_#t~nondet27;havoc main_#t~nondet27;~r2~0 := main_#t~nondet28;havoc main_#t~nondet28;~st2~0 := main_#t~nondet29;havoc main_#t~nondet29;~nl2~0 := main_#t~nondet30;havoc main_#t~nondet30;~m2~0 := main_#t~nondet31;havoc main_#t~nondet31;~max2~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode2~0 := main_#t~nondet33;havoc main_#t~nondet33;~newmax2~0 := main_#t~nondet34;havoc main_#t~nondet34;~id3~0 := main_#t~nondet35;havoc main_#t~nondet35;~r3~0 := main_#t~nondet36;havoc main_#t~nondet36;~st3~0 := main_#t~nondet37;havoc main_#t~nondet37;~nl3~0 := main_#t~nondet38;havoc main_#t~nondet38;~m3~0 := main_#t~nondet39;havoc main_#t~nondet39;~max3~0 := main_#t~nondet40;havoc main_#t~nondet40;~mode3~0 := main_#t~nondet41;havoc main_#t~nondet41;~newmax3~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 624#L258 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 695#L261-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 636#L271 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 607#L274-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 608#L284 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 630#L287-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 684#L297 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 692#L300-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 615#L310 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 616#L313-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 679#L323 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 668#L326-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 669#L336 assume ~id1~0 != ~id2~0; 664#L337 assume ~id1~0 != ~id3~0; 665#L338 assume ~id2~0 != ~id3~0; 702#L339 assume ~id1~0 >= 0; 625#L340 assume ~id2~0 >= 0; 626#L341 assume ~id3~0 >= 0; 699#L342 assume 0 == ~r1~0; 611#L343 assume 0 == ~r2~0; 612#L344 assume 0 == ~r3~0; 675#L345 assume 0 != init_~r122~0 % 256; 676#L346 assume 0 != init_~r132~0 % 256; 724#L347 assume 0 != init_~r212~0 % 256; 659#L348 assume 0 != init_~r232~0 % 256; 660#L349 assume 0 != init_~r312~0 % 256; 701#L350 assume 0 != init_~r322~0 % 256; 649#L351 assume ~max1~0 == ~id1~0; 650#L352 assume ~max2~0 == ~id2~0; 698#L353 assume ~max3~0 == ~id3~0; 609#L354 assume 0 == ~st1~0; 610#L355 assume 0 == ~st2~0; 673#L356 assume 0 == ~st3~0; 674#L357 assume 0 == ~nl1~0; 723#L358 assume 0 == ~nl2~0; 657#L359 assume 0 == ~nl3~0; 658#L360 assume 0 == ~mode1~0 % 256; 700#L361 assume 0 == ~mode2~0 % 256; 645#L362 assume 0 == ~mode3~0 % 256; 646#L363 assume 0 != ~newmax1~0 % 256; 697#L364 assume 0 != ~newmax2~0 % 256; 605#L365 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0 := 1; 606#L336-1 init_#res := init_~tmp___5~0; 718#L457 main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;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; 627#L21 assume !(0 == assume_abort_if_not_~cond); 628#L20 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 663#L568-2 [2020-11-29 21:36:23,963 INFO L796 eck$LassoCheckResult]: Loop: 663#L568-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 682#L82 assume !(0 != ~mode1~0 % 256); 732#L110 assume !(~r1~0 < 2); 652#L110-1 ~mode1~0 := 1; 731#L82-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 677#L133 assume !(0 != ~mode2~0 % 256); 655#L161 assume !(~r2~0 < 2); 644#L161-1 ~mode2~0 := 1; 654#L133-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 693#L184 assume !(0 != ~mode3~0 % 256); 716#L212 assume !(~r3~0 < 2); 604#L212-1 ~mode3~0 := 1; 715#L184-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 730#L465 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 689#L466 assume ~st1~0 + ~nl1~0 <= 1; 690#L467 assume ~st2~0 + ~nl2~0 <= 1; 717#L468 assume ~st3~0 + ~nl3~0 <= 1; 683#L469 assume ~r1~0 >= 2; 641#L473 assume ~r1~0 < 2; 688#L478 assume ~r1~0 >= 2; 637#L483 assume ~r1~0 < 2;check_~tmp~1 := 1; 638#L465-1 check_#res := check_~tmp~1; 680#L513 main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 681#L598 assume !(0 == assert_~arg % 256); 662#L593 main_#t~post45 := main_~i2~0;main_~i2~0 := 1 + main_#t~post45;havoc main_#t~post45; 663#L568-2 [2020-11-29 21:36:23,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:23,963 INFO L82 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 1 times [2020-11-29 21:36:23,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:23,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622703904] [2020-11-29 21:36:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:24,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:24,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:24,200 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:36:24,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:24,201 INFO L82 PathProgramCache]: Analyzing trace with hash -191057990, now seen corresponding path program 2 times [2020-11-29 21:36:24,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:24,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758936877] [2020-11-29 21:36:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:24,231 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 21:36:24,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758936877] [2020-11-29 21:36:24,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:36:24,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:36:24,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070851172] [2020-11-29 21:36:24,233 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:36:24,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:36:24,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:36:24,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:36:24,234 INFO L87 Difference]: Start difference. First operand 137 states and 201 transitions. cyclomatic complexity: 65 Second operand 3 states. [2020-11-29 21:36:24,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:36:24,317 INFO L93 Difference]: Finished difference Result 195 states and 288 transitions. [2020-11-29 21:36:24,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:36:24,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 288 transitions. [2020-11-29 21:36:24,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 135 [2020-11-29 21:36:24,323 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 195 states and 288 transitions. [2020-11-29 21:36:24,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2020-11-29 21:36:24,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2020-11-29 21:36:24,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 288 transitions. [2020-11-29 21:36:24,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:36:24,326 INFO L691 BuchiCegarLoop]: Abstraction has 195 states and 288 transitions. [2020-11-29 21:36:24,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 288 transitions. [2020-11-29 21:36:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-11-29 21:36:24,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-11-29 21:36:24,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 288 transitions. [2020-11-29 21:36:24,338 INFO L714 BuchiCegarLoop]: Abstraction has 195 states and 288 transitions. [2020-11-29 21:36:24,338 INFO L594 BuchiCegarLoop]: Abstraction has 195 states and 288 transitions. [2020-11-29 21:36:24,339 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 21:36:24,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 288 transitions. [2020-11-29 21:36:24,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 135 [2020-11-29 21:36:24,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:36:24,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:36:24,347 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] [2020-11-29 21:36:24,349 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:36:24,349 INFO L794 eck$LassoCheckResult]: Stem: 1074#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(41);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0; 961#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_#t~post45, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~newmax1~0 := main_#t~nondet26;havoc main_#t~nondet26;~id2~0 := main_#t~nondet27;havoc main_#t~nondet27;~r2~0 := main_#t~nondet28;havoc main_#t~nondet28;~st2~0 := main_#t~nondet29;havoc main_#t~nondet29;~nl2~0 := main_#t~nondet30;havoc main_#t~nondet30;~m2~0 := main_#t~nondet31;havoc main_#t~nondet31;~max2~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode2~0 := main_#t~nondet33;havoc main_#t~nondet33;~newmax2~0 := main_#t~nondet34;havoc main_#t~nondet34;~id3~0 := main_#t~nondet35;havoc main_#t~nondet35;~r3~0 := main_#t~nondet36;havoc main_#t~nondet36;~st3~0 := main_#t~nondet37;havoc main_#t~nondet37;~nl3~0 := main_#t~nondet38;havoc main_#t~nondet38;~m3~0 := main_#t~nondet39;havoc main_#t~nondet39;~max3~0 := main_#t~nondet40;havoc main_#t~nondet40;~mode3~0 := main_#t~nondet41;havoc main_#t~nondet41;~newmax3~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 962#L258 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1036#L261-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 974#L271 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 945#L274-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 946#L284 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 968#L287-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 1022#L297 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 1033#L300-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 953#L310 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 954#L313-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1018#L323 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 1006#L326-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1007#L336 assume ~id1~0 != ~id2~0; 999#L337 assume ~id1~0 != ~id3~0; 1000#L338 assume ~id2~0 != ~id3~0; 1043#L339 assume ~id1~0 >= 0; 963#L340 assume ~id2~0 >= 0; 964#L341 assume ~id3~0 >= 0; 1040#L342 assume 0 == ~r1~0; 949#L343 assume 0 == ~r2~0; 950#L344 assume 0 == ~r3~0; 1013#L345 assume 0 != init_~r122~0 % 256; 1014#L346 assume 0 != init_~r132~0 % 256; 1067#L347 assume 0 != init_~r212~0 % 256; 997#L348 assume 0 != init_~r232~0 % 256; 998#L349 assume 0 != init_~r312~0 % 256; 1042#L350 assume 0 != init_~r322~0 % 256; 985#L351 assume ~max1~0 == ~id1~0; 986#L352 assume ~max2~0 == ~id2~0; 1039#L353 assume ~max3~0 == ~id3~0; 947#L354 assume 0 == ~st1~0; 948#L355 assume 0 == ~st2~0; 1008#L356 assume 0 == ~st3~0; 1009#L357 assume 0 == ~nl1~0; 1066#L358 assume 0 == ~nl2~0; 995#L359 assume 0 == ~nl3~0; 996#L360 assume 0 == ~mode1~0 % 256; 1041#L361 assume 0 == ~mode2~0 % 256; 982#L362 assume 0 == ~mode3~0 % 256; 983#L363 assume 0 != ~newmax1~0 % 256; 1038#L364 assume 0 != ~newmax2~0 % 256; 943#L365 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0 := 1; 944#L336-1 init_#res := init_~tmp___5~0; 1060#L457 main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;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; 965#L21 assume !(0 == assume_abort_if_not_~cond); 966#L20 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 1025#L568-2 [2020-11-29 21:36:24,350 INFO L796 eck$LassoCheckResult]: Loop: 1025#L568-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 1089#L82 assume !(0 != ~mode1~0 % 256); 1088#L110 assume ~r1~0 < 2; 1010#L111 assume !(0 != ~ep12~0 % 256); 1011#L111-1 assume !(0 != ~ep13~0 % 256); 989#L110-1 ~mode1~0 := 1; 1119#L82-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 1118#L133 assume !(0 != ~mode2~0 % 256); 993#L161 assume !(~r2~0 < 2); 981#L161-1 ~mode2~0 := 1; 1109#L133-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 1108#L184 assume !(0 != ~mode3~0 % 256); 1103#L212 assume !(~r3~0 < 2); 1100#L212-1 ~mode3~0 := 1; 1099#L184-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1098#L465 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1097#L466 assume ~st1~0 + ~nl1~0 <= 1; 1096#L467 assume ~st2~0 + ~nl2~0 <= 1; 1095#L468 assume ~st3~0 + ~nl3~0 <= 1; 1094#L469 assume !(~r1~0 >= 2); 977#L472 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 978#L473 assume ~r1~0 < 2; 1087#L478 assume !(~r1~0 >= 2); 1053#L482 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 1054#L483 assume ~r1~0 < 2;check_~tmp~1 := 1; 1093#L465-1 check_#res := check_~tmp~1; 1092#L513 main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1091#L598 assume !(0 == assert_~arg % 256); 1090#L593 main_#t~post45 := main_~i2~0;main_~i2~0 := 1 + main_#t~post45;havoc main_#t~post45; 1025#L568-2 [2020-11-29 21:36:24,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:24,350 INFO L82 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 2 times [2020-11-29 21:36:24,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:24,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216402605] [2020-11-29 21:36:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:24,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:24,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:24,505 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:36:24,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:24,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1983288613, now seen corresponding path program 1 times [2020-11-29 21:36:24,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:24,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280124800] [2020-11-29 21:36:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:24,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:24,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:24,529 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:36:24,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:24,530 INFO L82 PathProgramCache]: Analyzing trace with hash 2100705272, now seen corresponding path program 1 times [2020-11-29 21:36:24,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:24,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156549812] [2020-11-29 21:36:24,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:24,611 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 21:36:24,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156549812] [2020-11-29 21:36:24,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:36:24,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:36:24,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880863420] [2020-11-29 21:36:25,044 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2020-11-29 21:36:25,412 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2020-11-29 21:36:25,424 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 21:36:25,424 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 21:36:25,425 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 21:36:25,425 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 21:36:25,425 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 21:36:25,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:25,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 21:36:25,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 21:36:25,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-11-29 21:36:25,426 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 21:36:25,426 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 21:36:25,452 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 21:36:25,464 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 21:36:25,473 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 21:36:25,487 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 21:36:25,491 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 21:36:25,493 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 21:36:25,496 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 21:36:25,502 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 21:36:25,504 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 21:36:25,513 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 21:36:25,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:36:25,523 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 21:36:25,526 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 21:36:25,536 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 21:36:25,543 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 21:36:25,550 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 21:36:25,563 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 21:36:25,566 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 21:36:25,595 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 21:36:25,601 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 21:36:25,604 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 21:36:25,607 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 21:36:25,610 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 21:36:25,613 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 21:36:26,202 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 21:36:26,202 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:26,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 21:36:26,224 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 21:36:26,240 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 21:36:26,240 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~ep12~0=0} Honda state: {~ep12~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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 21:36:26,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 21:36:26,283 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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 21:36:26,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 21:36:26,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 21:36:26,520 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 21:36:26,522 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 21:36:26,522 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 21:36:26,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 21:36:26,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 21:36:26,522 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 21:36:26,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:26,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 21:36:26,523 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 21:36:26,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-11-29 21:36:26,523 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 21:36:26,523 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 21:36:26,526 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 21:36:26,534 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 21:36:26,542 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 21:36:26,556 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 21:36:26,559 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 21:36:26,562 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 21:36:26,571 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 21:36:26,577 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 21:36:26,592 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 21:36:26,595 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 21:36:26,607 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 21:36:26,612 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 21:36:26,626 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 21:36:26,629 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 21:36:26,638 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 21:36:26,647 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 21:36:26,651 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 21:36:26,655 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 21:36:26,662 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 21:36:26,669 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 21:36:26,672 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 21:36:26,674 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 21:36:26,679 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 21:36:26,682 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 21:36:27,224 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 21:36:27,235 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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 21:36:27,250 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 21:36:27,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:27,277 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:36:27,329 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 21:36:27,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:36:27,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:27,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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) [2020-11-29 21:36:27,449 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 21:36:27,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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) [2020-11-29 21:36:27,498 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 21:36:27,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,505 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:36:27,545 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 21:36:27,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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) [2020-11-29 21:36:27,592 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 21:36:27,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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) [2020-11-29 21:36:27,637 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 21:36:27,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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 21:36:27,683 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 21:36:27,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,686 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 21:36:27,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:36:27,727 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 21:36:27,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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) [2020-11-29 21:36:27,773 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 21:36:27,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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) [2020-11-29 21:36:27,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:36:27,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:27,836 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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 21:36:27,862 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 21:36:27,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:27,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef410556-81e3-465d-a2d9-0431f50c474c/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 21:36:27,890 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 21:36:27,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:27,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:27,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:27,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:27,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:27,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:27,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:27,896 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 21:36:27,910 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 21:36:27,910 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_ef410556-81e3-465d-a2d9-0431f50c474c/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:36:27,941 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 21:36:27,941 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 21:36:27,942 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 21:36:27,942 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:27,977 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 21:36:28,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:28,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:36:28,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:36:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:28,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 21:36:28,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:36:28,264 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 21:36:28,269 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 21:36:28,270 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 195 states and 288 transitions. cyclomatic complexity: 94 Second operand 3 states. [2020-11-29 21:36:28,361 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 195 states and 288 transitions. cyclomatic complexity: 94. Second operand 3 states. Result 329 states and 498 transitions. Complement of second has 4 states. [2020-11-29 21:36:28,362 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 21:36:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 21:36:28,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-11-29 21:36:28,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 201 transitions. Stem has 48 letters. Loop has 29 letters. [2020-11-29 21:36:28,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 21:36:28,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 201 transitions. Stem has 77 letters. Loop has 29 letters. [2020-11-29 21:36:28,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 21:36:28,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 201 transitions. Stem has 48 letters. Loop has 58 letters. [2020-11-29 21:36:28,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 21:36:28,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 329 states and 498 transitions. [2020-11-29 21:36:28,375 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 21:36:28,375 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 329 states to 0 states and 0 transitions. [2020-11-29 21:36:28,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 21:36:28,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 21:36:28,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 21:36:28,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:36:28,376 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:36:28,376 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:36:28,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:36:28,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:36:28,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:36:28,377 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-29 21:36:28,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:36:28,377 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 21:36:28,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:36:28,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 21:36:28,381 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 21:36:28,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:36:28,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 21:36:28,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 21:36:28,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 21:36:28,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:36:28,382 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:36:28,382 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:36:28,382 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:36:28,382 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 21:36:28,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:36:28,382 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 21:36:28,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 21:36:28,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 09:36:28 BoogieIcfgContainer [2020-11-29 21:36:28,387 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 21:36:28,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:36:28,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:36:28,390 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:36:28,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:22" (3/4) ... [2020-11-29 21:36:28,399 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:36:28,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:36:28,401 INFO L168 Benchmark]: Toolchain (without parser) took 7382.24 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 77.9 MB in the beginning and 100.2 MB in the end (delta: -22.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:28,401 INFO L168 Benchmark]: CDTParser took 1.90 ms. Allocated memory is still 81.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:28,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.20 ms. Allocated memory is still 109.1 MB. Free memory was 77.6 MB in the beginning and 79.9 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:28,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.82 ms. Allocated memory is still 109.1 MB. Free memory was 79.9 MB in the beginning and 77.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:28,407 INFO L168 Benchmark]: Boogie Preprocessor took 46.62 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 74.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:28,407 INFO L168 Benchmark]: RCFGBuilder took 1173.27 ms. Allocated memory is still 109.1 MB. Free memory was 74.8 MB in the beginning and 73.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:28,409 INFO L168 Benchmark]: BuchiAutomizer took 5579.88 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 73.0 MB in the beginning and 100.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:28,409 INFO L168 Benchmark]: Witness Printer took 9.29 ms. Allocated memory is still 159.4 MB. Free memory is still 100.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:28,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.90 ms. Allocated memory is still 81.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 490.20 ms. Allocated memory is still 109.1 MB. Free memory was 77.6 MB in the beginning and 79.9 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.82 ms. Allocated memory is still 109.1 MB. Free memory was 79.9 MB in the beginning and 77.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.62 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 74.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1173.27 ms. Allocated memory is still 109.1 MB. Free memory was 74.8 MB in the beginning and 73.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5579.88 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 73.0 MB in the beginning and 100.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * Witness Printer took 9.29 ms. Allocated memory is still 159.4 MB. Free memory is still 100.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 195 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 869 SDtfs, 403 SDslu, 1669 SDs, 0 SdLazy, 45 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital142 mio100 ax100 hnf98 lsp27 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...