./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.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_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 4d55ff05c625cc4e931d19e7a1796a7096a7af1e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:50:54,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:50:54,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:50:54,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:50:54,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:50:54,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:50:54,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:50:54,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:50:54,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:50:54,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:50:54,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:50:54,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:50:54,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:50:54,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:50:54,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:50:54,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:50:54,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:50:54,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:50:54,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:50:54,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:50:54,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:50:54,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:50:54,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:50:54,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:50:54,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:50:54,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:50:54,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:50:54,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:50:54,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:50:54,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:50:54,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:50:54,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:50:54,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:50:54,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:50:54,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:50:54,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:50:54,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:50:54,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:50:54,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:50:54,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:50:54,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:50:54,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:50:54,656 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:50:54,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:50:54,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:50:54,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:50:54,658 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:50:54,659 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:50:54,659 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:50:54,659 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:50:54,659 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:50:54,660 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:50:54,660 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:50:54,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:50:54,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:50:54,661 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:50:54,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:50:54,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:50:54,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:50:54,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:50:54,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:50:54,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:50:54,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:50:54,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:50:54,663 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:50:54,663 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:50:54,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:50:54,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:50:54,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:50:54,664 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:50:54,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:50:54,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:50:54,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:50:54,665 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:50:54,666 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:50:54,666 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_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d55ff05c625cc4e931d19e7a1796a7096a7af1e [2020-11-29 22:50:54,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:50:54,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:50:54,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:50:54,961 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:50:54,963 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:50:54,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-11-29 22:50:55,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/data/581b48e96/9eaebc72f05045d9888e64f2b646b1c1/FLAG2dca3af76 [2020-11-29 22:50:55,674 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:50:55,675 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-11-29 22:50:55,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/data/581b48e96/9eaebc72f05045d9888e64f2b646b1c1/FLAG2dca3af76 [2020-11-29 22:50:56,032 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/data/581b48e96/9eaebc72f05045d9888e64f2b646b1c1 [2020-11-29 22:50:56,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:50:56,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:50:56,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:50:56,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:50:56,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:50:56,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48375bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56, skipping insertion in model container [2020-11-29 22:50:56,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:50:56,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:50:56,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:50:56,355 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:50:56,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:50:56,435 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:50:56,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56 WrapperNode [2020-11-29 22:50:56,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:50:56,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:50:56,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:50:56,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:50:56,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:50:56,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:50:56,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:50:56,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:50:56,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... [2020-11-29 22:50:56,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:50:56,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:50:56,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:50:56,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:50:56,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:50:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:50:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:50:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:50:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:50:57,780 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:50:57,780 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-11-29 22:50:57,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:50:57 BoogieIcfgContainer [2020-11-29 22:50:57,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:50:57,783 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:50:57,783 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:50:57,789 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:50:57,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:50:57,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:50:56" (1/3) ... [2020-11-29 22:50:57,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1441991b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:50:57, skipping insertion in model container [2020-11-29 22:50:57,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:50:57,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:50:56" (2/3) ... [2020-11-29 22:50:57,792 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1441991b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:50:57, skipping insertion in model container [2020-11-29 22:50:57,793 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:50:57,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:50:57" (3/3) ... [2020-11-29 22:50:57,795 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-11-29 22:50:57,850 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:50:57,850 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:50:57,850 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:50:57,850 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:50:57,850 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:50:57,850 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:50:57,850 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:50:57,850 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:50:57,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states. [2020-11-29 22:50:57,893 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 70 [2020-11-29 22:50:57,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:50:57,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:50:57,902 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 22:50:57,902 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 22:50:57,902 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:50:57,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states. [2020-11-29 22:50:57,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 70 [2020-11-29 22:50:57,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:50:57,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:50:57,913 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 22:50:57,913 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 22:50:57,922 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 114#L228true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 86#L231-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 4#L241true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 123#L244-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 40#L254true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 43#L257-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 96#L267true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 77#L270-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 132#L280true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 103#L283-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 22#L293true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 5#L296-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 59#L306true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 60#L306-1true init_#res := init_~tmp___5~0; 126#L415true main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 97#L509true assume !(0 == main_~i2~0); 100#L509-2true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 72#L523-2true [2020-11-29 22:50:57,922 INFO L796 eck$LassoCheckResult]: Loop: 72#L523-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 56#L75true assume !(0 != ~mode1~0 % 256); 47#L100true assume !(~r1~0 < 2); 45#L100-1true ~mode1~0 := 1; 41#L75-2true havoc node2_#t~ite9, node2_#t~ite10; 110#L118true assume !(0 != ~mode2~0 % 256); 84#L143true assume !(~r2~0 < 2); 101#L143-1true ~mode2~0 := 1; 91#L118-2true havoc node3_#t~ite11, node3_#t~ite12; 28#L161true assume !(0 != ~mode3~0 % 256); 3#L186true assume !(~r3~0 < 2); 19#L186-1true ~mode3~0 := 1; 25#L161-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 129#L423true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 131#L423-1true check_#res := check_~tmp~1; 68#L471true main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 93#L553true assume !(0 == assert_~arg % 256); 64#L548true main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 72#L523-2true [2020-11-29 22:50:57,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:57,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 1 times [2020-11-29 22:50:57,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:50:57,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296373872] [2020-11-29 22:50:57,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:50:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:50:58,199 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 22:50:58,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296373872] [2020-11-29 22:50:58,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:50:58,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:50:58,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190245738] [2020-11-29 22:50:58,208 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:50:58,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:58,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1518597393, now seen corresponding path program 1 times [2020-11-29 22:50:58,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:50:58,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796772102] [2020-11-29 22:50:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:50:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:50:58,363 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 22:50:58,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796772102] [2020-11-29 22:50:58,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:50:58,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:50:58,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433373457] [2020-11-29 22:50:58,365 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:50:58,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:50:58,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:50:58,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:50:58,383 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 5 states. [2020-11-29 22:50:58,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:50:58,523 INFO L93 Difference]: Finished difference Result 134 states and 226 transitions. [2020-11-29 22:50:58,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:50:58,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 226 transitions. [2020-11-29 22:50:58,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 22:50:58,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 125 states and 210 transitions. [2020-11-29 22:50:58,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2020-11-29 22:50:58,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2020-11-29 22:50:58,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 210 transitions. [2020-11-29 22:50:58,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:50:58,551 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2020-11-29 22:50:58,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 210 transitions. [2020-11-29 22:50:58,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-29 22:50:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 22:50:58,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 210 transitions. [2020-11-29 22:50:58,585 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2020-11-29 22:50:58,585 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2020-11-29 22:50:58,585 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:50:58,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 210 transitions. [2020-11-29 22:50:58,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 22:50:58,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:50:58,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:50:58,606 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 22:50:58,606 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 22:50:58,607 INFO L794 eck$LassoCheckResult]: Stem: 401#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 302#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 303#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 349#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 286#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 287#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 350#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 351#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 356#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 321#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 392#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 367#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 322#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 291#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 292#L306 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 290#L306-1 init_#res := init_~tmp___5~0; 377#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 402#L509 assume !(0 == main_~i2~0); 403#L509-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 381#L523-2 [2020-11-29 22:50:58,608 INFO L796 eck$LassoCheckResult]: Loop: 381#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 374#L75 assume !(0 != ~mode1~0 % 256); 361#L100 assume !(~r1~0 < 2); 358#L100-1 ~mode1~0 := 1; 353#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 354#L118 assume !(0 != ~mode2~0 % 256); 397#L143 assume !(~r2~0 < 2); 359#L143-1 ~mode2~0 := 1; 399#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 329#L161 assume !(0 != ~mode3~0 % 256); 283#L186 assume !(~r3~0 < 2); 284#L186-1 ~mode3~0 := 1; 316#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 326#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 391#L424 assume ~st1~0 + ~nl1~0 <= 1; 327#L425 assume ~st2~0 + ~nl2~0 <= 1; 328#L426 assume ~st3~0 + ~nl3~0 <= 1; 390#L427 assume ~r1~0 >= 2; 317#L431 assume ~r1~0 < 2; 318#L436 assume ~r1~0 >= 2; 325#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 363#L423-1 check_#res := check_~tmp~1; 386#L471 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 387#L553 assume !(0 == assert_~arg % 256); 380#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 381#L523-2 [2020-11-29 22:50:58,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:58,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 2 times [2020-11-29 22:50:58,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:50:58,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341918088] [2020-11-29 22:50:58,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:50:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:50:58,745 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 22:50:58,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341918088] [2020-11-29 22:50:58,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:50:58,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:50:58,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424099189] [2020-11-29 22:50:58,746 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:50:58,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:58,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1802356924, now seen corresponding path program 1 times [2020-11-29 22:50:58,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:50:58,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813445234] [2020-11-29 22:50:58,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:50:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:50:58,801 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 22:50:58,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813445234] [2020-11-29 22:50:58,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:50:58,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:50:58,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623691423] [2020-11-29 22:50:58,803 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:50:58,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:50:58,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:50:58,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:50:58,804 INFO L87 Difference]: Start difference. First operand 125 states and 210 transitions. cyclomatic complexity: 86 Second operand 5 states. [2020-11-29 22:50:58,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:50:58,924 INFO L93 Difference]: Finished difference Result 196 states and 320 transitions. [2020-11-29 22:50:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:50:58,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 320 transitions. [2020-11-29 22:50:58,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 22:50:58,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 193 states and 291 transitions. [2020-11-29 22:50:58,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 193 [2020-11-29 22:50:58,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2020-11-29 22:50:58,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 193 states and 291 transitions. [2020-11-29 22:50:58,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:50:58,936 INFO L691 BuchiCegarLoop]: Abstraction has 193 states and 291 transitions. [2020-11-29 22:50:58,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states and 291 transitions. [2020-11-29 22:50:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 125. [2020-11-29 22:50:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 22:50:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2020-11-29 22:50:58,946 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2020-11-29 22:50:58,946 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2020-11-29 22:50:58,946 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:50:58,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 183 transitions. [2020-11-29 22:50:58,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 22:50:58,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:50:58,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:50:58,950 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] [2020-11-29 22:50:58,950 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 22:50:58,951 INFO L794 eck$LassoCheckResult]: Stem: 735#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 636#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 637#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 683#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 620#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 621#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 684#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 685#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 690#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 655#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 726#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 701#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 656#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 623#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 624#L306 assume ~id1~0 != ~id2~0; 642#L307 assume ~id1~0 != ~id3~0; 643#L308 assume ~id2~0 != ~id3~0; 705#L309 assume ~id1~0 >= 0; 629#L310 assume ~id2~0 >= 0; 630#L311 assume ~id3~0 >= 0; 676#L312 assume 0 == ~r1~0; 677#L313 assume 0 == ~r2~0; 729#L314 assume 0 == ~r3~0; 667#L315 assume 0 != init_~r122~0 % 256; 668#L316 assume 0 != init_~r132~0 % 256; 710#L317 assume 0 != init_~r212~0 % 256; 640#L318 assume 0 != init_~r232~0 % 256; 641#L319 assume 0 != init_~r312~0 % 256; 704#L320 assume 0 != init_~r322~0 % 256; 627#L321 assume ~max1~0 == ~id1~0; 628#L322 assume ~max2~0 == ~id2~0; 674#L323 assume ~max3~0 == ~id3~0; 675#L324 assume 0 == ~st1~0; 728#L325 assume 0 == ~st2~0; 665#L326 assume 0 == ~st3~0; 666#L327 assume 0 == ~nl1~0; 709#L328 assume 0 == ~nl2~0; 638#L329 assume 0 == ~nl3~0; 639#L330 assume 0 == ~mode1~0 % 256; 703#L331 assume 0 == ~mode2~0 % 256; 625#L332 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 626#L306-1 init_#res := init_~tmp___5~0; 713#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 736#L509 assume !(0 == main_~i2~0); 737#L509-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 715#L523-2 [2020-11-29 22:50:58,951 INFO L796 eck$LassoCheckResult]: Loop: 715#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 707#L75 assume !(0 != ~mode1~0 % 256); 695#L100 assume !(~r1~0 < 2); 692#L100-1 ~mode1~0 := 1; 687#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 688#L118 assume !(0 != ~mode2~0 % 256); 731#L143 assume !(~r2~0 < 2); 693#L143-1 ~mode2~0 := 1; 733#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 663#L161 assume !(0 != ~mode3~0 % 256); 617#L186 assume !(~r3~0 < 2); 618#L186-1 ~mode3~0 := 1; 650#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 658#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 725#L424 assume ~st1~0 + ~nl1~0 <= 1; 661#L425 assume ~st2~0 + ~nl2~0 <= 1; 662#L426 assume ~st3~0 + ~nl3~0 <= 1; 724#L427 assume ~r1~0 >= 2; 651#L431 assume ~r1~0 < 2; 652#L436 assume ~r1~0 >= 2; 660#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 697#L423-1 check_#res := check_~tmp~1; 720#L471 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 721#L553 assume !(0 == assert_~arg % 256); 714#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 715#L523-2 [2020-11-29 22:50:58,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:58,952 INFO L82 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 1 times [2020-11-29 22:50:58,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:50:58,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591742800] [2020-11-29 22:50:58,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:50:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:50:59,016 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:50:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:50:59,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:50:59,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:50:59,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:59,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1802356924, now seen corresponding path program 2 times [2020-11-29 22:50:59,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:50:59,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478562402] [2020-11-29 22:50:59,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:50:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:50:59,183 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 22:50:59,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478562402] [2020-11-29 22:50:59,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:50:59,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:50:59,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955429784] [2020-11-29 22:50:59,187 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:50:59,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:50:59,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:50:59,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:50:59,188 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. cyclomatic complexity: 59 Second operand 3 states. [2020-11-29 22:50:59,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:50:59,275 INFO L93 Difference]: Finished difference Result 177 states and 260 transitions. [2020-11-29 22:50:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:50:59,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 260 transitions. [2020-11-29 22:50:59,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2020-11-29 22:50:59,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 260 transitions. [2020-11-29 22:50:59,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2020-11-29 22:50:59,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2020-11-29 22:50:59,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 260 transitions. [2020-11-29 22:50:59,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:50:59,282 INFO L691 BuchiCegarLoop]: Abstraction has 177 states and 260 transitions. [2020-11-29 22:50:59,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 260 transitions. [2020-11-29 22:50:59,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-11-29 22:50:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-11-29 22:50:59,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 260 transitions. [2020-11-29 22:50:59,302 INFO L714 BuchiCegarLoop]: Abstraction has 177 states and 260 transitions. [2020-11-29 22:50:59,302 INFO L594 BuchiCegarLoop]: Abstraction has 177 states and 260 transitions. [2020-11-29 22:50:59,302 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 22:50:59,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 260 transitions. [2020-11-29 22:50:59,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2020-11-29 22:50:59,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:50:59,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:50:59,306 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] [2020-11-29 22:50:59,307 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 22:50:59,307 INFO L794 eck$LassoCheckResult]: Stem: 1043#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 944#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 945#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 991#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 928#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 929#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 992#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 993#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 998#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 962#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1034#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 1008#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 963#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 931#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 932#L306 assume ~id1~0 != ~id2~0; 950#L307 assume ~id1~0 != ~id3~0; 951#L308 assume ~id2~0 != ~id3~0; 1013#L309 assume ~id1~0 >= 0; 937#L310 assume ~id2~0 >= 0; 938#L311 assume ~id3~0 >= 0; 984#L312 assume 0 == ~r1~0; 985#L313 assume 0 == ~r2~0; 1037#L314 assume 0 == ~r3~0; 975#L315 assume 0 != init_~r122~0 % 256; 976#L316 assume 0 != init_~r132~0 % 256; 1018#L317 assume 0 != init_~r212~0 % 256; 948#L318 assume 0 != init_~r232~0 % 256; 949#L319 assume 0 != init_~r312~0 % 256; 1012#L320 assume 0 != init_~r322~0 % 256; 935#L321 assume ~max1~0 == ~id1~0; 936#L322 assume ~max2~0 == ~id2~0; 979#L323 assume ~max3~0 == ~id3~0; 980#L324 assume 0 == ~st1~0; 1035#L325 assume 0 == ~st2~0; 973#L326 assume 0 == ~st3~0; 974#L327 assume 0 == ~nl1~0; 1015#L328 assume 0 == ~nl2~0; 946#L329 assume 0 == ~nl3~0; 947#L330 assume 0 == ~mode1~0 % 256; 1011#L331 assume 0 == ~mode2~0 % 256; 933#L332 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 934#L306-1 init_#res := init_~tmp___5~0; 1019#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 1044#L509 assume !(0 == main_~i2~0); 1045#L509-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 1046#L523-2 [2020-11-29 22:50:59,307 INFO L796 eck$LassoCheckResult]: Loop: 1046#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 1058#L75 assume !(0 != ~mode1~0 % 256); 1057#L100 assume ~r1~0 < 2; 1052#L101 assume !(0 != ~ep12~0 % 256); 1038#L101-2 assume !(0 != ~ep13~0 % 256); 1010#L100-1 ~mode1~0 := 1; 1098#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 1094#L118 assume !(0 != ~mode2~0 % 256); 1090#L143 assume !(~r2~0 < 2); 1086#L143-1 ~mode2~0 := 1; 1084#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 1077#L161 assume !(0 != ~mode3~0 % 256); 1075#L186 assume !(~r3~0 < 2); 1069#L186-1 ~mode3~0 := 1; 1067#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1055#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1056#L424 assume ~st1~0 + ~nl1~0 <= 1; 1066#L425 assume ~st2~0 + ~nl2~0 <= 1; 1065#L426 assume ~st3~0 + ~nl3~0 <= 1; 1064#L427 assume !(~r1~0 >= 2); 1005#L430 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 1006#L431 assume ~r1~0 < 2; 1063#L436 assume !(~r1~0 >= 2); 1048#L440 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 1049#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 1062#L423-1 check_#res := check_~tmp~1; 1061#L471 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1060#L553 assume !(0 == assert_~arg % 256); 1059#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 1046#L523-2 [2020-11-29 22:50:59,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:59,308 INFO L82 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 2 times [2020-11-29 22:50:59,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:50:59,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27181876] [2020-11-29 22:50:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:50:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:50:59,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:50:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:50:59,407 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:50:59,427 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:50:59,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:59,428 INFO L82 PathProgramCache]: Analyzing trace with hash -480396683, now seen corresponding path program 1 times [2020-11-29 22:50:59,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:50:59,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000992995] [2020-11-29 22:50:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:50:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:50:59,438 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:50:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:50:59,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:50:59,451 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:50:59,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:59,452 INFO L82 PathProgramCache]: Analyzing trace with hash 472050999, now seen corresponding path program 1 times [2020-11-29 22:50:59,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:50:59,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855635057] [2020-11-29 22:50:59,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:50:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:50:59,550 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 22:50:59,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855635057] [2020-11-29 22:50:59,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:50:59,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:50:59,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039069480] [2020-11-29 22:50:59,929 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-11-29 22:51:00,307 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-11-29 22:51:00,320 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:51:00,321 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:51:00,321 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:51:00,321 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:51:00,321 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:51:00,321 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:51:00,321 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:51:00,321 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:51:00,322 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-11-29 22:51:00,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:51:00,322 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:51:00,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:51:00,360 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 22:51:00,380 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 22:51:00,397 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 22:51:00,406 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 22:51:00,410 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 22:51:00,413 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 22:51:00,419 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 22:51:00,423 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 22:51:00,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:51:00,432 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 22:51:00,440 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 22:51:00,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:51:00,452 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 22:51:00,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:51:00,464 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 22:51:00,499 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 22:51:00,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:51:00,507 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 22:51:00,510 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 22:51:00,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:51:01,064 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:51:01,065 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:01,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:51:01,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:51:01,095 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 22:51:01,095 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_bb3b6c47-aa65-4a02-b796-4906b37e39e1/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:51:01,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:51:01,131 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:01,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:51:01,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:51:01,306 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:51:01,307 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:51:01,308 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:51:01,308 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:51:01,308 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:51:01,308 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:51:01,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:51:01,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:51:01,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:51:01,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-11-29 22:51:01,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:51:01,308 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:51:01,313 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 22:51:01,324 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 22:51:01,418 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 22:51:01,458 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 22:51:01,462 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 22:51:01,467 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 22:51:01,470 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 22:51:01,478 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 22:51:01,481 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 22:51:01,487 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 22:51:01,489 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 22:51:01,495 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 22:51:01,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:51:01,514 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 22:51:01,526 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 22:51:01,530 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 22:51:01,534 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 22:51:01,550 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 22:51:01,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:51:01,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:51:01,563 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 22:51:02,169 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:51:02,174 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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) [2020-11-29 22:51:02,201 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 22:51:02,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:51:02,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:51:02,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:51:02,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:51:02,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:51:02,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:51:02,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:51:02,210 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:02,251 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 22:51:02,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:51:02,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:51:02,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:51:02,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:51:02,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:51:02,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:51:02,256 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 22:51:02,259 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:02,296 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 22:51:02,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:51:02,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:51:02,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:51:02,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:51:02,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:51:02,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:51:02,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:51:02,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:02,350 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 22:51:02,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:51:02,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:51:02,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:51:02,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:51:02,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:51:02,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:51:02,355 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 22:51:02,358 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:02,399 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:51:02,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:51:02,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:51:02,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:51:02,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:51:02,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:51:02,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:51:02,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:51:02,411 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:02,454 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 22:51:02,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:51:02,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:51:02,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:51:02,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:51:02,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:51:02,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:51:02,460 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 22:51:02,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:02,506 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 22:51:02,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:51:02,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:51:02,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:51:02,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:51:02,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:51:02,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:51:02,512 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 22:51:02,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:02,557 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 22:51:02,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:51:02,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:51:02,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:51:02,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:51:02,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:51:02,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:51:02,560 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 22:51:02,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:02,604 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 22:51:02,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:51:02,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:51:02,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:51:02,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:51:02,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:51:02,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:51:02,610 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 22:51:02,621 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:51:02,627 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:51:02,627 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_bb3b6c47-aa65-4a02-b796-4906b37e39e1/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 22:51:02,635 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:51:02,636 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:51:02,636 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:51:02,637 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:51:02,658 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:51:02,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:51:02,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:51:02,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:51:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:51:02,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:51:02,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:51:02,935 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 22:51:02,938 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 22:51:02,939 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 177 states and 260 transitions. cyclomatic complexity: 84 Second operand 3 states. [2020-11-29 22:51:02,992 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 177 states and 260 transitions. cyclomatic complexity: 84. Second operand 3 states. Result 296 states and 445 transitions. Complement of second has 4 states. [2020-11-29 22:51:02,992 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 22:51:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:51:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2020-11-29 22:51:02,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 29 letters. [2020-11-29 22:51:02,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:51:02,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 74 letters. Loop has 29 letters. [2020-11-29 22:51:02,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:51:02,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 58 letters. [2020-11-29 22:51:02,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:51:02,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 296 states and 445 transitions. [2020-11-29 22:51:03,002 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:51:03,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 296 states to 0 states and 0 transitions. [2020-11-29 22:51:03,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:51:03,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:51:03,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:51:03,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:51:03,003 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:51:03,003 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:51:03,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:51:03,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:51:03,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:51:03,004 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-29 22:51:03,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:51:03,004 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 22:51:03,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:51:03,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 22:51:03,005 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:51:03,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:51:03,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:51:03,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:51:03,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:51:03,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:51:03,005 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:51:03,005 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:51:03,005 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:51:03,006 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 22:51:03,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:51:03,006 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:51:03,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 22:51:03,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:51:03 BoogieIcfgContainer [2020-11-29 22:51:03,011 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:51:03,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:51:03,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:51:03,012 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:51:03,012 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:50:57" (3/4) ... [2020-11-29 22:51:03,015 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:51:03,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:51:03,017 INFO L168 Benchmark]: Toolchain (without parser) took 6980.12 ms. Allocated memory was 90.2 MB in the beginning and 176.2 MB in the end (delta: 86.0 MB). Free memory was 61.9 MB in the beginning and 95.3 MB in the end (delta: -33.4 MB). Peak memory consumption was 52.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:03,017 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 90.2 MB. Free memory was 49.5 MB in the beginning and 49.4 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:51:03,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.94 ms. Allocated memory is still 90.2 MB. Free memory was 61.7 MB in the beginning and 62.5 MB in the end (delta: -816.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:03,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.47 ms. Allocated memory is still 90.2 MB. Free memory was 62.5 MB in the beginning and 59.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:03,019 INFO L168 Benchmark]: Boogie Preprocessor took 46.03 ms. Allocated memory is still 90.2 MB. Free memory was 59.8 MB in the beginning and 57.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:03,020 INFO L168 Benchmark]: RCFGBuilder took 1238.76 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 57.4 MB in the beginning and 55.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:03,020 INFO L168 Benchmark]: BuchiAutomizer took 5227.87 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 55.9 MB in the beginning and 96.4 MB in the end (delta: -40.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:03,021 INFO L168 Benchmark]: Witness Printer took 3.57 ms. Allocated memory is still 176.2 MB. Free memory was 96.4 MB in the beginning and 95.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:03,024 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 90.2 MB. Free memory was 49.5 MB in the beginning and 49.4 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 398.94 ms. Allocated memory is still 90.2 MB. Free memory was 61.7 MB in the beginning and 62.5 MB in the end (delta: -816.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.47 ms. Allocated memory is still 90.2 MB. Free memory was 62.5 MB in the beginning and 59.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.03 ms. Allocated memory is still 90.2 MB. Free memory was 59.8 MB in the beginning and 57.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1238.76 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 57.4 MB in the beginning and 55.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5227.87 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 55.9 MB in the beginning and 96.4 MB in the end (delta: -40.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.57 ms. Allocated memory is still 176.2 MB. Free memory was 96.4 MB in the beginning and 95.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 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 5.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 68 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 177 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 789 SDtfs, 360 SDslu, 1505 SDs, 0 SdLazy, 54 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital133 mio100 ax100 hnf98 lsp29 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms 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...