./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.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_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/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 ba950fe2d036378a3065660e3d85b422f002b7a8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:20:25,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:20:25,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:20:25,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:20:25,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:20:25,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:20:25,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:20:25,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:20:25,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:20:25,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:20:25,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:20:25,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:20:25,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:20:25,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:20:25,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:20:25,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:20:25,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:20:25,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:20:25,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:20:25,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:20:25,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:20:25,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:20:25,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:20:25,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:20:25,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:20:25,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:20:25,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:20:25,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:20:25,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:20:25,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:20:25,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:20:25,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:20:25,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:20:25,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:20:25,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:20:25,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:20:25,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:20:25,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:20:25,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:20:25,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:20:25,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:20:25,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 21:20:25,762 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:20:25,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:20:25,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:20:25,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:20:25,765 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:20:25,765 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 21:20:25,765 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 21:20:25,766 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 21:20:25,766 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 21:20:25,766 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 21:20:25,767 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 21:20:25,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:20:25,768 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:20:25,768 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:20:25,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:20:25,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:20:25,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:20:25,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 21:20:25,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 21:20:25,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 21:20:25,770 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:20:25,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:20:25,770 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 21:20:25,771 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:20:25,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 21:20:25,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:20:25,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:20:25,772 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 21:20:25,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:20:25,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:20:25,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:20:25,775 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 21:20:25,776 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 21:20:25,777 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_b10c6842-360d-49c2-9494-c7fb2a30e9c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba950fe2d036378a3065660e3d85b422f002b7a8 [2020-11-29 21:20:26,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:20:26,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:20:26,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:20:26,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:20:26,153 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:20:26,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2020-11-29 21:20:26,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/data/d0cebe450/0140731372914c8388ca2c8aa5861e4b/FLAG23f483ae0 [2020-11-29 21:20:26,822 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:20:26,823 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2020-11-29 21:20:26,842 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/data/d0cebe450/0140731372914c8388ca2c8aa5861e4b/FLAG23f483ae0 [2020-11-29 21:20:27,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/data/d0cebe450/0140731372914c8388ca2c8aa5861e4b [2020-11-29 21:20:27,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:20:27,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:20:27,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:20:27,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:20:27,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:20:27,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10330446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27, skipping insertion in model container [2020-11-29 21:20:27,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:20:27,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:20:27,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:20:27,451 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:20:27,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:20:27,533 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:20:27,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27 WrapperNode [2020-11-29 21:20:27,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:20:27,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:20:27,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:20:27,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:20:27,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:20:27,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:20:27,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:20:27,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:20:27,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... [2020-11-29 21:20:27,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:20:27,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:20:27,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:20:27,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:20:27,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:20:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:20:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:20:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:20:28,800 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:20:28,800 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-11-29 21:20:28,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:20:28 BoogieIcfgContainer [2020-11-29 21:20:28,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:20:28,803 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 21:20:28,804 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 21:20:28,812 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 21:20:28,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:20:28,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 09:20:27" (1/3) ... [2020-11-29 21:20:28,815 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41805e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:20:28, skipping insertion in model container [2020-11-29 21:20:28,815 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:20:28,816 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:27" (2/3) ... [2020-11-29 21:20:28,816 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41805e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:20:28, skipping insertion in model container [2020-11-29 21:20:28,816 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:20:28,817 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:20:28" (3/3) ... [2020-11-29 21:20:28,820 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2020-11-29 21:20:28,899 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 21:20:28,899 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 21:20:28,899 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 21:20:28,899 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:20:28,900 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:20:28,900 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 21:20:28,900 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:20:28,900 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 21:20:28,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states. [2020-11-29 21:20:28,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 70 [2020-11-29 21:20:28,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:20:28,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:20:28,987 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:28,988 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:28,988 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 21:20:28,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states. [2020-11-29 21:20:29,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 70 [2020-11-29 21:20:29,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:20:29,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:20:29,008 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:29,008 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:29,020 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 21:20:29,028 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 21:20:29,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:29,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 1 times [2020-11-29 21:20:29,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:29,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131923526] [2020-11-29 21:20:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:29,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:29,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131923526] [2020-11-29 21:20:29,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:29,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:20:29,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704843269] [2020-11-29 21:20:29,441 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 21:20:29,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:29,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1518597393, now seen corresponding path program 1 times [2020-11-29 21:20:29,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:29,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357376202] [2020-11-29 21:20:29,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:29,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:29,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357376202] [2020-11-29 21:20:29,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:29,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:20:29,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730273395] [2020-11-29 21:20:29,638 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:20:29,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:29,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:20:29,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:20:29,667 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 5 states. [2020-11-29 21:20:29,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:29,786 INFO L93 Difference]: Finished difference Result 134 states and 226 transitions. [2020-11-29 21:20:29,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:20:29,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 226 transitions. [2020-11-29 21:20:29,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 21:20:29,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 125 states and 210 transitions. [2020-11-29 21:20:29,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2020-11-29 21:20:29,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2020-11-29 21:20:29,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 210 transitions. [2020-11-29 21:20:29,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:20:29,802 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2020-11-29 21:20:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 210 transitions. [2020-11-29 21:20:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-29 21:20:29,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 21:20:29,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 210 transitions. [2020-11-29 21:20:29,853 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2020-11-29 21:20:29,853 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2020-11-29 21:20:29,853 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 21:20:29,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 210 transitions. [2020-11-29 21:20:29,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 21:20:29,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:20:29,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:20:29,858 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:29,858 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:29,858 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 21:20:29,858 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 21:20:29,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:29,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 2 times [2020-11-29 21:20:29,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:29,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513611529] [2020-11-29 21:20:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:29,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513611529] [2020-11-29 21:20:29,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:29,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:20:29,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778361261] [2020-11-29 21:20:29,975 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 21:20:29,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:29,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1802356924, now seen corresponding path program 1 times [2020-11-29 21:20:29,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:29,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592235739] [2020-11-29 21:20:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:30,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592235739] [2020-11-29 21:20:30,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:30,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:20:30,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302753457] [2020-11-29 21:20:30,039 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:20:30,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:30,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:20:30,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:20:30,041 INFO L87 Difference]: Start difference. First operand 125 states and 210 transitions. cyclomatic complexity: 86 Second operand 5 states. [2020-11-29 21:20:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:30,169 INFO L93 Difference]: Finished difference Result 196 states and 320 transitions. [2020-11-29 21:20:30,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:20:30,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 320 transitions. [2020-11-29 21:20:30,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 21:20:30,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 193 states and 291 transitions. [2020-11-29 21:20:30,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 193 [2020-11-29 21:20:30,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2020-11-29 21:20:30,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 193 states and 291 transitions. [2020-11-29 21:20:30,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:20:30,190 INFO L691 BuchiCegarLoop]: Abstraction has 193 states and 291 transitions. [2020-11-29 21:20:30,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states and 291 transitions. [2020-11-29 21:20:30,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 125. [2020-11-29 21:20:30,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 21:20:30,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2020-11-29 21:20:30,207 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2020-11-29 21:20:30,207 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2020-11-29 21:20:30,207 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 21:20:30,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 183 transitions. [2020-11-29 21:20:30,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-11-29 21:20:30,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:20:30,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:20:30,213 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 21:20:30,213 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:30,214 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 21:20:30,214 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 21:20:30,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:30,215 INFO L82 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 1 times [2020-11-29 21:20:30,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:30,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877007214] [2020-11-29 21:20:30,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:20:30,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:20:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:20:30,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:20:30,463 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:20:30,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:30,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1802356924, now seen corresponding path program 2 times [2020-11-29 21:20:30,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:30,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580165945] [2020-11-29 21:20:30,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:30,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580165945] [2020-11-29 21:20:30,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:30,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:20:30,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038222354] [2020-11-29 21:20:30,521 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:20:30,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:30,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:20:30,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:20:30,522 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. cyclomatic complexity: 59 Second operand 3 states. [2020-11-29 21:20:30,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:30,591 INFO L93 Difference]: Finished difference Result 176 states and 259 transitions. [2020-11-29 21:20:30,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:20:30,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 259 transitions. [2020-11-29 21:20:30,594 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 119 [2020-11-29 21:20:30,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 176 states and 259 transitions. [2020-11-29 21:20:30,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 176 [2020-11-29 21:20:30,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 176 [2020-11-29 21:20:30,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 176 states and 259 transitions. [2020-11-29 21:20:30,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:20:30,600 INFO L691 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2020-11-29 21:20:30,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states and 259 transitions. [2020-11-29 21:20:30,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2020-11-29 21:20:30,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-11-29 21:20:30,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 259 transitions. [2020-11-29 21:20:30,616 INFO L714 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2020-11-29 21:20:30,616 INFO L594 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2020-11-29 21:20:30,616 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 21:20:30,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 176 states and 259 transitions. [2020-11-29 21:20:30,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 119 [2020-11-29 21:20:30,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:20:30,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:20:30,621 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 21:20:30,621 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:30,622 INFO L794 eck$LassoCheckResult]: Stem: 1042#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; 943#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; 944#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 989#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 927#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 928#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 990#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 991#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 996#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 961#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1033#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 1006#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 962#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 930#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 931#L306 assume ~id1~0 != ~id2~0; 949#L307 assume ~id1~0 != ~id3~0; 950#L308 assume ~id2~0 != ~id3~0; 1011#L309 assume ~id1~0 >= 0; 936#L310 assume ~id2~0 >= 0; 937#L311 assume ~id3~0 >= 0; 982#L312 assume 0 == ~r1~0; 983#L313 assume 0 == ~r2~0; 1036#L314 assume 0 == ~r3~0; 973#L315 assume 0 != init_~r122~0 % 256; 974#L316 assume 0 != init_~r132~0 % 256; 1016#L317 assume 0 != init_~r212~0 % 256; 947#L318 assume 0 != init_~r232~0 % 256; 948#L319 assume 0 != init_~r312~0 % 256; 1010#L320 assume 0 != init_~r322~0 % 256; 934#L321 assume ~max1~0 == ~id1~0; 935#L322 assume ~max2~0 == ~id2~0; 977#L323 assume ~max3~0 == ~id3~0; 978#L324 assume 0 == ~st1~0; 1034#L325 assume 0 == ~st2~0; 971#L326 assume 0 == ~st3~0; 972#L327 assume 0 == ~nl1~0; 1013#L328 assume 0 == ~nl2~0; 945#L329 assume 0 == ~nl3~0; 946#L330 assume 0 == ~mode1~0 % 256; 1009#L331 assume 0 == ~mode2~0 % 256; 932#L332 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 933#L306-1 init_#res := init_~tmp___5~0; 1017#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 1043#L509 assume !(0 == main_~i2~0); 1044#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; 1045#L523-2 [2020-11-29 21:20:30,622 INFO L796 eck$LassoCheckResult]: Loop: 1045#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 1057#L75 assume !(0 != ~mode1~0 % 256); 1056#L100 assume ~r1~0 < 2; 1051#L101 assume !(0 != ~ep12~0 % 256); 1037#L101-2 assume !(0 != ~ep13~0 % 256); 1008#L100-1 ~mode1~0 := 1; 1024#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 1093#L118 assume !(0 != ~mode2~0 % 256); 1089#L143 assume !(~r2~0 < 2); 1085#L143-1 ~mode2~0 := 1; 1083#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 1076#L161 assume !(0 != ~mode3~0 % 256); 1074#L186 assume !(~r3~0 < 2); 1068#L186-1 ~mode3~0 := 1; 1066#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; 1054#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1055#L424 assume ~st1~0 + ~nl1~0 <= 1; 1065#L425 assume ~st2~0 + ~nl2~0 <= 1; 1064#L426 assume ~st3~0 + ~nl3~0 <= 1; 1063#L427 assume !(~r1~0 >= 2); 1003#L430 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 1004#L431 assume ~r1~0 < 2; 1062#L436 assume !(~r1~0 >= 2); 1047#L440 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 1048#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 1061#L423-1 check_#res := check_~tmp~1; 1060#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; 1059#L553 assume !(0 == assert_~arg % 256); 1058#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 1045#L523-2 [2020-11-29 21:20:30,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:30,622 INFO L82 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 2 times [2020-11-29 21:20:30,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:30,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320268940] [2020-11-29 21:20:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:20:30,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:20:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:20:30,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:20:30,779 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:20:30,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:30,785 INFO L82 PathProgramCache]: Analyzing trace with hash -480396683, now seen corresponding path program 1 times [2020-11-29 21:20:30,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:30,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144638617] [2020-11-29 21:20:30,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:20:30,802 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:20:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:20:30,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:20:30,826 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:20:30,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:30,827 INFO L82 PathProgramCache]: Analyzing trace with hash 472050999, now seen corresponding path program 1 times [2020-11-29 21:20:30,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:30,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765538191] [2020-11-29 21:20:30,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:30,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765538191] [2020-11-29 21:20:30,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:30,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:20:30,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222810923] [2020-11-29 21:20:31,341 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-11-29 21:20:31,669 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-11-29 21:20:31,684 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 21:20:31,684 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 21:20:31,684 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 21:20:31,684 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 21:20:31,685 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 21:20:31,685 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:31,685 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 21:20:31,685 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 21:20:31,685 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-11-29 21:20:31,685 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 21:20:31,686 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 21:20:31,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:31,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,329 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 21:20:32,330 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:20:32,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 21:20:32,365 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:32,378 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 21:20:32,378 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_b10c6842-360d-49c2-9494-c7fb2a30e9c9/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 21:20:32,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 21:20:32,416 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:20:32,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 21:20:32,474 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:32,661 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 21:20:32,662 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 21:20:32,663 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 21:20:32,663 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 21:20:32,663 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 21:20:32,663 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 21:20:32,663 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:32,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 21:20:32,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 21:20:32,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-11-29 21:20:32,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 21:20:32,663 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 21:20:32,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:32,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:20:33,365 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 21:20:33,371 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/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 21:20:33,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:20:33,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:20:33,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:20:33,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:20:33,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:20:33,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:20:33,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:20:33,393 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 21:20:33,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:20:33,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:20:33,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:20:33,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:20:33,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:20:33,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:20:33,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:20:33,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:20:33,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:33,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:20:33,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:20:33,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:20:33,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:20:33,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:20:33,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:20:33,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:20:33,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:20:33,493 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 21:20:33,498 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:20:33,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:20:33,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:20:33,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:20:33,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:20:33,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:20:33,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:20:33,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:20:33,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:33,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:33,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:20:33,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:20:33,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:20:33,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:20:33,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:20:33,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:20:33,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:20:33,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:20:33,600 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:33,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:20:33,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:20:33,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:20:33,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:20:33,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:20:33,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:20:33,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:20:33,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:20:33,638 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:33,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:20:33,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:20:33,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:20:33,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:20:33,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:20:33,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:20:33,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:20:33,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:20:33,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:33,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:20:33,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:20:33,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:20:33,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:20:33,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:20:33,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:20:33,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:20:33,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:20:33,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:20:33,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:20:33,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:20:33,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:20:33,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:20:33,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:20:33,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:20:33,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:20:33,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:20:33,764 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 21:20:33,796 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 21:20:33,796 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_b10c6842-360d-49c2-9494-c7fb2a30e9c9/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:20:33,801 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 21:20:33,801 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 21:20:33,801 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 21:20:33,802 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 21:20:33,838 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 21:20:33,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:34,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:20:34,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:20:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:34,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 21:20:34,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:20:34,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:34,091 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 21:20:34,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 176 states and 259 transitions. cyclomatic complexity: 84 Second operand 3 states. [2020-11-29 21:20:34,189 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 176 states and 259 transitions. cyclomatic complexity: 84. Second operand 3 states. Result 294 states and 443 transitions. Complement of second has 4 states. [2020-11-29 21:20:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 21:20:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 21:20:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2020-11-29 21:20:34,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 29 letters. [2020-11-29 21:20:34,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 21:20:34,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 74 letters. Loop has 29 letters. [2020-11-29 21:20:34,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 21:20:34,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 58 letters. [2020-11-29 21:20:34,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 21:20:34,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 294 states and 443 transitions. [2020-11-29 21:20:34,204 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 21:20:34,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 294 states to 0 states and 0 transitions. [2020-11-29 21:20:34,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 21:20:34,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 21:20:34,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 21:20:34,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:20:34,204 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:20:34,204 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:20:34,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:34,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:20:34,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:20:34,205 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-29 21:20:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:34,206 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 21:20:34,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:20:34,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 21:20:34,206 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 21:20:34,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:20:34,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 21:20:34,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 21:20:34,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 21:20:34,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:20:34,207 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:20:34,207 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:20:34,207 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:20:34,207 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 21:20:34,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:20:34,207 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 21:20:34,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 21:20:34,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 09:20:34 BoogieIcfgContainer [2020-11-29 21:20:34,216 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 21:20:34,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:20:34,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:20:34,217 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:20:34,217 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:20:28" (3/4) ... [2020-11-29 21:20:34,220 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:20:34,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:20:34,228 INFO L168 Benchmark]: Toolchain (without parser) took 7091.97 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 60.7 MB in the beginning and 106.4 MB in the end (delta: -45.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:34,229 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:20:34,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.92 ms. Allocated memory is still 90.2 MB. Free memory was 60.5 MB in the beginning and 61.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:34,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.58 ms. Allocated memory is still 90.2 MB. Free memory was 61.5 MB in the beginning and 58.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:34,231 INFO L168 Benchmark]: Boogie Preprocessor took 72.44 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 56.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:34,234 INFO L168 Benchmark]: RCFGBuilder took 1127.65 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 56.7 MB in the beginning and 52.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:34,235 INFO L168 Benchmark]: BuchiAutomizer took 5412.37 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 52.7 MB in the beginning and 106.4 MB in the end (delta: -53.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:20:34,235 INFO L168 Benchmark]: Witness Printer took 4.05 ms. Allocated memory is still 159.4 MB. Free memory is still 106.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:20:34,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 402.92 ms. Allocated memory is still 90.2 MB. Free memory was 60.5 MB in the beginning and 61.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.58 ms. Allocated memory is still 90.2 MB. Free memory was 61.5 MB in the beginning and 58.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.44 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 56.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1127.65 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 56.7 MB in the beginning and 52.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5412.37 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 52.7 MB in the beginning and 106.4 MB in the end (delta: -53.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.05 ms. Allocated memory is still 159.4 MB. Free memory is still 106.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 68 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 176 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 788 SDtfs, 357 SDslu, 1507 SDs, 0 SdLazy, 55 SolverSat, 44 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: 23ms 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...