./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.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_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/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 5beb1b2c4fc5295f24e5534377d8a7a7e05bf11f ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:40:06,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:40:06,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:40:06,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:40:06,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:40:06,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:40:06,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:40:06,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:40:06,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:40:06,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:40:06,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:40:06,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:40:06,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:40:06,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:40:06,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:40:06,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:40:06,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:40:06,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:40:06,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:40:06,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:40:06,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:40:06,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:40:06,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:40:06,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:40:06,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:40:06,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:40:06,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:40:06,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:40:06,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:40:06,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:40:06,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:40:06,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:40:06,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:40:06,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:40:06,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:40:06,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:40:06,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:40:06,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:40:06,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:40:06,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:40:06,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:40:06,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:40:06,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:40:06,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:40:06,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:40:06,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:40:06,620 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:40:06,620 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:40:06,620 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:40:06,621 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:40:06,621 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:40:06,621 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:40:06,623 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:40:06,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:40:06,623 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:40:06,624 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:40:06,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:40:06,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:40:06,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:40:06,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:40:06,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:40:06,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:40:06,625 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:40:06,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:40:06,625 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:40:06,625 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:40:06,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:40:06,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:40:06,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:40:06,626 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:40:06,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:40:06,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:40:06,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:40:06,627 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:40:06,628 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:40:06,629 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_841d01ec-12cf-40f7-925e-cbda21fc3724/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5beb1b2c4fc5295f24e5534377d8a7a7e05bf11f [2020-11-29 19:40:06,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:40:06,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:40:06,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:40:07,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:40:07,002 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:40:07,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-11-29 19:40:07,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/data/c111d56f0/37234a995b764c7ca22e521c535ebcff/FLAG93759266d [2020-11-29 19:40:07,872 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:40:07,873 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-11-29 19:40:07,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/data/c111d56f0/37234a995b764c7ca22e521c535ebcff/FLAG93759266d [2020-11-29 19:40:08,064 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/data/c111d56f0/37234a995b764c7ca22e521c535ebcff [2020-11-29 19:40:08,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:40:08,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:40:08,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:40:08,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:40:08,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:40:08,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:08,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7086c5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08, skipping insertion in model container [2020-11-29 19:40:08,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:08,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:40:08,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:40:08,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:40:08,663 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:40:08,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:40:08,820 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:40:08,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08 WrapperNode [2020-11-29 19:40:08,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:40:08,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:40:08,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:40:08,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:40:08,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:08,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:08,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:40:08,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:40:08,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:40:08,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:40:08,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:08,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:08,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:08,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:09,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:09,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:09,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... [2020-11-29 19:40:09,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:40:09,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:40:09,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:40:09,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:40:09,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:40:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:40:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:40:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:40:11,106 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:40:11,111 INFO L298 CfgBuilder]: Removed 23 assume(true) statements. [2020-11-29 19:40:11,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:11 BoogieIcfgContainer [2020-11-29 19:40:11,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:40:11,117 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:40:11,117 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:40:11,122 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:40:11,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:40:11,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:40:08" (1/3) ... [2020-11-29 19:40:11,125 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@506b54ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:40:11, skipping insertion in model container [2020-11-29 19:40:11,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:40:11,126 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:08" (2/3) ... [2020-11-29 19:40:11,127 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@506b54ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:40:11, skipping insertion in model container [2020-11-29 19:40:11,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:40:11,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:11" (3/3) ... [2020-11-29 19:40:11,131 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-11-29 19:40:11,205 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:40:11,206 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:40:11,206 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:40:11,206 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:40:11,206 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:40:11,206 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:40:11,206 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:40:11,206 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:40:11,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states. [2020-11-29 19:40:11,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-11-29 19:40:11,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:40:11,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:40:11,320 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:11,321 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] [2020-11-29 19:40:11,321 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:40:11,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states. [2020-11-29 19:40:11,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-11-29 19:40:11,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:40:11,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:40:11,359 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:11,363 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] [2020-11-29 19:40:11,387 INFO L794 eck$LassoCheckResult]: Stem: 111#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;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 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;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 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;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 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;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 265#L393true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 263#L404true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 179#L414true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 178#L425true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 89#L435true assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 86#L446true init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 146#L456true assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 145#L467true init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 55#L477true assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 53#L488true init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 253#L498true assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 252#L509true init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 172#L519true assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 170#L530true init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 222#L540true assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 221#L551true init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 134#L561true assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 133#L572true init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 40#L582true assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 39#L593true init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 239#L603true assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 238#L614true init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 293#L624true assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 292#L635true init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 206#L645true assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 205#L656true init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 119#L666true assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 117#L677true init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 25#L687true assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 24#L698true init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 63#L708true assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 79#L719true init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 260#L729true assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 258#L740true init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 175#L750true assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 174#L761true init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 83#L771true assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 82#L782true init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 141#L792true assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 140#L803true init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 45#L813true assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 44#L824true init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 246#L834true assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 245#L845true init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 164#L855true assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 163#L866true init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 214#L876true assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 213#L887true init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 127#L897true assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 129#L897-1true init_#res := init_~tmp___23~0; 138#L1018true main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 15#L21true assume !(0 == assume_abort_if_not_~cond); 47#L20true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 7#L1155-2true [2020-11-29 19:40:11,393 INFO L796 eck$LassoCheckResult]: Loop: 7#L1155-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 20#L109true assume !(0 != ~mode1~0 % 256); 75#L141true assume !(~r1~0 < 3); 71#L141-1true ~mode1~0 := 1; 16#L109-2true havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 271#L162true assume !(0 != ~mode2~0 % 256); 187#L194true assume !(~r2~0 < 3); 185#L194-1true ~mode2~0 := 1; 267#L162-2true havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 96#L215true assume !(0 != ~mode3~0 % 256); 150#L247true assume !(~r3~0 < 3); 148#L247-1true ~mode3~0 := 1; 88#L215-2true havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 57#L268true assume !(0 != ~mode4~0 % 256); 255#L300true assume !(~r4~0 < 3); 251#L300-1true ~mode4~0 := 1; 49#L268-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_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;~p24_old~0 := ~p24_new~0;~p24_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;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 280#L1026true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 282#L1026-1true check_#res := check_~tmp~1; 8#L1078true main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 66#L1198true assume !(0 == assert_~arg % 256); 35#L1193true main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 7#L1155-2true [2020-11-29 19:40:11,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:11,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1972521662, now seen corresponding path program 1 times [2020-11-29 19:40:11,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:11,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954092629] [2020-11-29 19:40:11,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:11,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954092629] [2020-11-29 19:40:11,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:40:11,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:40:11,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008698495] [2020-11-29 19:40:11,990 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:40:11,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:11,995 INFO L82 PathProgramCache]: Analyzing trace with hash -11982031, now seen corresponding path program 1 times [2020-11-29 19:40:11,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:11,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681987031] [2020-11-29 19:40:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:12,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681987031] [2020-11-29 19:40:12,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:40:12,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:40:12,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400024988] [2020-11-29 19:40:12,153 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:40:12,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:40:12,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:40:12,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:40:12,177 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 5 states. [2020-11-29 19:40:12,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:40:12,407 INFO L93 Difference]: Finished difference Result 295 states and 521 transitions. [2020-11-29 19:40:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:40:12,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 295 states and 521 transitions. [2020-11-29 19:40:12,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-11-29 19:40:12,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 295 states to 286 states and 504 transitions. [2020-11-29 19:40:12,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 286 [2020-11-29 19:40:12,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 286 [2020-11-29 19:40:12,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 286 states and 504 transitions. [2020-11-29 19:40:12,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:40:12,455 INFO L691 BuchiCegarLoop]: Abstraction has 286 states and 504 transitions. [2020-11-29 19:40:12,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states and 504 transitions. [2020-11-29 19:40:12,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-11-29 19:40:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-29 19:40:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 504 transitions. [2020-11-29 19:40:12,538 INFO L714 BuchiCegarLoop]: Abstraction has 286 states and 504 transitions. [2020-11-29 19:40:12,539 INFO L594 BuchiCegarLoop]: Abstraction has 286 states and 504 transitions. [2020-11-29 19:40:12,539 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:40:12,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 286 states and 504 transitions. [2020-11-29 19:40:12,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-11-29 19:40:12,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:40:12,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:40:12,556 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:12,556 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:12,557 INFO L794 eck$LassoCheckResult]: Stem: 804#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;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 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;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 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;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 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;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 628#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 629#L393 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 862#L404 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 859#L414 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 769#L425 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 766#L435 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 661#L446 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 763#L456 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 721#L467 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 717#L477 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 715#L488 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 716#L498 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 708#L509 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 855#L519 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 798#L530 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 854#L540 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 622#L551 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 829#L561 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 691#L572 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 687#L582 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 685#L593 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 686#L603 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 684#L614 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 889#L624 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 879#L635 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 877#L645 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 813#L656 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 809#L666 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 606#L677 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 654#L687 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 652#L698 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 653#L708 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 646#L719 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 756#L729 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 754#L740 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 856#L750 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 761#L761 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 759#L771 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 635#L782 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 758#L792 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 702#L803 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 698#L813 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 696#L824 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 697#L834 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 695#L845 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 848#L855 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 787#L866 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 847#L876 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 822#L887 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 820#L897 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 670#L897-1 init_#res := init_~tmp___23~0; 824#L1018 main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 630#L21 assume !(0 == assume_abort_if_not_~cond); 631#L20 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 613#L1155-2 [2020-11-29 19:40:12,558 INFO L796 eck$LassoCheckResult]: Loop: 613#L1155-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 614#L109 assume !(0 != ~mode1~0 % 256); 644#L141 assume !(~r1~0 < 3); 748#L141-1 ~mode1~0 := 1; 632#L109-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 633#L162 assume !(0 != ~mode2~0 % 256); 866#L194 assume !(~r2~0 < 3); 675#L194-1 ~mode2~0 := 1; 755#L162-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 779#L215 assume !(0 != ~mode3~0 % 256); 781#L247 assume !(~r3~0 < 3); 737#L247-1 ~mode3~0 := 1; 762#L215-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 722#L268 assume !(0 != ~mode4~0 % 256); 724#L300 assume !(~r4~0 < 3); 805#L300-1 ~mode4~0 := 1; 704#L268-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_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;~p24_old~0 := ~p24_new~0;~p24_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;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 705#L1026 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 883#L1027 assume ~st1~0 + ~nl1~0 <= 1; 658#L1028 assume ~st2~0 + ~nl2~0 <= 1; 659#L1029 assume ~st3~0 + ~nl3~0 <= 1; 832#L1030 assume ~st4~0 + ~nl4~0 <= 1; 853#L1031 assume ~r1~0 >= 3; 627#L1035 assume ~r1~0 < 3; 693#L1040 assume ~r1~0 >= 3; 617#L1045 assume ~r1~0 < 3;check_~tmp~1 := 1; 618#L1026-1 check_#res := check_~tmp~1; 615#L1078 main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 616#L1198 assume !(0 == assert_~arg % 256); 678#L1193 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 613#L1155-2 [2020-11-29 19:40:12,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:12,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1972521662, now seen corresponding path program 2 times [2020-11-29 19:40:12,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:12,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701821180] [2020-11-29 19:40:12,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:12,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701821180] [2020-11-29 19:40:12,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:40:12,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:40:12,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388962527] [2020-11-29 19:40:12,793 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:40:12,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:12,794 INFO L82 PathProgramCache]: Analyzing trace with hash 970511616, now seen corresponding path program 1 times [2020-11-29 19:40:12,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:12,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852850899] [2020-11-29 19:40:12,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:12,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852850899] [2020-11-29 19:40:12,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:40:12,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:40:12,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191593012] [2020-11-29 19:40:12,847 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:40:12,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:40:12,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:40:12,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:40:12,848 INFO L87 Difference]: Start difference. First operand 286 states and 504 transitions. cyclomatic complexity: 219 Second operand 3 states. [2020-11-29 19:40:12,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:40:12,946 INFO L93 Difference]: Finished difference Result 371 states and 638 transitions. [2020-11-29 19:40:12,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:40:12,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 371 states and 638 transitions. [2020-11-29 19:40:12,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2020-11-29 19:40:12,964 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 371 states to 371 states and 638 transitions. [2020-11-29 19:40:12,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 371 [2020-11-29 19:40:12,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 371 [2020-11-29 19:40:12,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 371 states and 638 transitions. [2020-11-29 19:40:12,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:40:12,975 INFO L691 BuchiCegarLoop]: Abstraction has 371 states and 638 transitions. [2020-11-29 19:40:12,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states and 638 transitions. [2020-11-29 19:40:13,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2020-11-29 19:40:13,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-11-29 19:40:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 638 transitions. [2020-11-29 19:40:13,008 INFO L714 BuchiCegarLoop]: Abstraction has 371 states and 638 transitions. [2020-11-29 19:40:13,008 INFO L594 BuchiCegarLoop]: Abstraction has 371 states and 638 transitions. [2020-11-29 19:40:13,009 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:40:13,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 371 states and 638 transitions. [2020-11-29 19:40:13,016 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2020-11-29 19:40:13,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:40:13,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:40:13,021 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:13,021 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:13,021 INFO L794 eck$LassoCheckResult]: Stem: 1474#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;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 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;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 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;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 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;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 1293#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 1294#L393 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1536#L404 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1532#L414 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 1438#L425 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1433#L435 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 1326#L446 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 1432#L456 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 1388#L467 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1384#L477 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 1382#L488 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1383#L498 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 1375#L509 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1528#L519 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 1468#L530 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 1527#L540 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 1287#L551 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 1500#L561 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 1357#L572 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 1353#L582 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 1351#L593 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 1352#L603 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 1350#L614 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 1564#L624 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 1552#L635 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 1550#L645 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 1484#L656 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 1481#L666 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 1272#L677 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 1321#L687 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 1317#L698 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 1318#L708 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 1314#L719 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 1424#L729 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 1421#L740 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 1529#L750 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 1428#L761 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 1426#L771 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 1303#L782 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 1425#L792 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 1368#L803 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 1364#L813 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 1362#L824 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 1363#L834 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 1361#L845 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 1519#L855 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 1453#L866 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 1518#L876 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 1493#L887 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 1491#L897 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 1338#L897-1 init_#res := init_~tmp___23~0; 1495#L1018 main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 1295#L21 assume !(0 == assume_abort_if_not_~cond); 1296#L20 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 1344#L1155-2 [2020-11-29 19:40:13,022 INFO L796 eck$LassoCheckResult]: Loop: 1344#L1155-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 1573#L109 assume !(0 != ~mode1~0 % 256); 1572#L141 assume ~r1~0 < 3; 1315#L142 assume !(0 != ~ep12~0 % 256); 1299#L142-2 assume !(0 != ~ep13~0 % 256); 1301#L145-1 assume !(0 != ~ep14~0 % 256); 1554#L141-1 ~mode1~0 := 1; 1636#L109-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 1634#L162 assume !(0 != ~mode2~0 % 256); 1624#L194 assume !(~r2~0 < 3); 1620#L194-1 ~mode2~0 := 1; 1619#L162-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 1608#L215 assume !(0 != ~mode3~0 % 256); 1609#L247 assume !(~r3~0 < 3); 1598#L247-1 ~mode3~0 := 1; 1595#L215-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 1591#L268 assume !(0 != ~mode4~0 % 256); 1566#L300 assume !(~r4~0 < 3); 1475#L300-1 ~mode4~0 := 1; 1581#L268-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_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;~p24_old~0 := ~p24_new~0;~p24_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;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1580#L1026 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1579#L1027 assume ~st1~0 + ~nl1~0 <= 1; 1578#L1028 assume ~st2~0 + ~nl2~0 <= 1; 1571#L1029 assume ~st3~0 + ~nl3~0 <= 1; 1570#L1030 assume ~st4~0 + ~nl4~0 <= 1; 1569#L1031 assume !(~r1~0 >= 3); 1291#L1034 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1292#L1035 assume ~r1~0 < 3; 1577#L1040 assume !(~r1~0 >= 3); 1372#L1044 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1373#L1045 assume ~r1~0 < 3;check_~tmp~1 := 1; 1568#L1026-1 check_#res := check_~tmp~1; 1281#L1078 main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1282#L1198 assume !(0 == assert_~arg % 256); 1343#L1193 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 1344#L1155-2 [2020-11-29 19:40:13,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:13,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1972521662, now seen corresponding path program 3 times [2020-11-29 19:40:13,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:13,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518131269] [2020-11-29 19:40:13,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:13,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:13,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518131269] [2020-11-29 19:40:13,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:40:13,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:40:13,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474042827] [2020-11-29 19:40:13,180 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:40:13,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:13,181 INFO L82 PathProgramCache]: Analyzing trace with hash -419942828, now seen corresponding path program 1 times [2020-11-29 19:40:13,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:13,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022224713] [2020-11-29 19:40:13,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:13,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:13,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:13,284 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:40:14,103 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 145 [2020-11-29 19:40:14,862 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-11-29 19:40:14,882 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:40:14,883 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:40:14,883 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:40:14,884 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:40:14,884 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 19:40:14,884 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:14,884 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:40:14,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:40:14,885 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.1.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-29 19:40:14,885 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:40:14,886 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:40:14,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:14,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:14,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:14,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:14,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:14,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:14,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,245 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-11-29 19:40:15,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:15,866 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 19:40:16,339 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 19:40:16,392 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:40:16,393 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:16,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:40:16,403 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:40:16,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 19:40:16,474 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:16,605 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 19:40:16,608 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:40:16,608 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:40:16,608 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:40:16,608 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:40:16,608 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:40:16,608 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:16,608 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:40:16,608 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:40:16,608 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.1.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-29 19:40:16,609 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:40:16,609 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:40:16,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,666 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 19:40:16,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,767 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 19:40:16,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,784 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 19:40:16,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,798 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 19:40:16,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:16,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:40:17,200 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 19:40:17,656 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 19:40:17,773 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:40:17,778 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:17,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:17,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:17,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:17,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:17,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:17,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:17,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:17,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:17,820 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/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 19:40:17,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:17,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:17,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:17,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:17,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:17,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:17,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:17,885 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 19:40:17,887 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/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 19:40:17,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:17,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:17,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:17,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:17,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:17,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:17,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:17,944 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 19:40:17,948 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/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 19:40:18,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,079 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,081 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,188 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:40:18,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,375 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:40:18,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:40:18,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:40:18,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:40:18,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:40:18,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:40:18,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:40:18,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:40:18,534 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:40:18,539 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 19:40:18,539 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_841d01ec-12cf-40f7-925e-cbda21fc3724/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:18,545 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:40:18,545 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 19:40:18,545 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:40:18,546 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 15 Supporting invariants [] [2020-11-29 19:40:18,573 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 19:40:18,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:18,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:40:18,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:40:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:19,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:40:19,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:40:19,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:19,074 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:40:19,075 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 371 states and 638 transitions. cyclomatic complexity: 268 Second operand 3 states. [2020-11-29 19:40:19,213 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 371 states and 638 transitions. cyclomatic complexity: 268. Second operand 3 states. Result 561 states and 946 transitions. Complement of second has 4 states. [2020-11-29 19:40:19,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 19:40:19,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:40:19,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2020-11-29 19:40:19,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 504 transitions. Stem has 55 letters. Loop has 35 letters. [2020-11-29 19:40:19,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:40:19,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 504 transitions. Stem has 90 letters. Loop has 35 letters. [2020-11-29 19:40:19,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:40:19,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 504 transitions. Stem has 55 letters. Loop has 70 letters. [2020-11-29 19:40:19,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:40:19,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 561 states and 946 transitions. [2020-11-29 19:40:19,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:40:19,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 561 states to 0 states and 0 transitions. [2020-11-29 19:40:19,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:40:19,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:40:19,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:40:19,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:40:19,251 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:40:19,251 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:40:19,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:40:19,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:40:19,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:40:19,254 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-11-29 19:40:19,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:40:19,254 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 19:40:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:40:19,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 19:40:19,255 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:40:19,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:40:19,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:40:19,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:40:19,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:40:19,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:40:19,256 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:40:19,256 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:40:19,256 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:40:19,256 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:40:19,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:40:19,257 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:40:19,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:40:19,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:40:19 BoogieIcfgContainer [2020-11-29 19:40:19,264 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:40:19,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:40:19,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:40:19,265 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:40:19,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:11" (3/4) ... [2020-11-29 19:40:19,274 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:40:19,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:40:19,283 INFO L168 Benchmark]: Toolchain (without parser) took 11206.74 ms. Allocated memory was 88.1 MB in the beginning and 226.5 MB in the end (delta: 138.4 MB). Free memory was 55.9 MB in the beginning and 146.3 MB in the end (delta: -90.4 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:40:19,285 INFO L168 Benchmark]: CDTParser took 1.13 ms. Allocated memory is still 88.1 MB. Free memory was 48.0 MB in the beginning and 48.0 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:40:19,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.89 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 55.6 MB in the beginning and 72.9 MB in the end (delta: -17.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:40:19,286 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.91 ms. Allocated memory is still 107.0 MB. Free memory was 72.9 MB in the beginning and 68.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:40:19,287 INFO L168 Benchmark]: Boogie Preprocessor took 89.54 ms. Allocated memory is still 107.0 MB. Free memory was 68.4 MB in the beginning and 64.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:40:19,292 INFO L168 Benchmark]: RCFGBuilder took 2057.71 ms. Allocated memory is still 107.0 MB. Free memory was 64.7 MB in the beginning and 54.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:40:19,293 INFO L168 Benchmark]: BuchiAutomizer took 8146.90 ms. Allocated memory was 107.0 MB in the beginning and 226.5 MB in the end (delta: 119.5 MB). Free memory was 54.0 MB in the beginning and 147.4 MB in the end (delta: -93.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:40:19,297 INFO L168 Benchmark]: Witness Printer took 10.06 ms. Allocated memory is still 226.5 MB. Free memory was 147.4 MB in the beginning and 146.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:40:19,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13 ms. Allocated memory is still 88.1 MB. Free memory was 48.0 MB in the beginning and 48.0 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 752.89 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 55.6 MB in the beginning and 72.9 MB in the end (delta: -17.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 141.91 ms. Allocated memory is still 107.0 MB. Free memory was 72.9 MB in the beginning and 68.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.54 ms. Allocated memory is still 107.0 MB. Free memory was 68.4 MB in the beginning and 64.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2057.71 ms. Allocated memory is still 107.0 MB. Free memory was 64.7 MB in the beginning and 54.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8146.90 ms. Allocated memory was 107.0 MB in the beginning and 226.5 MB in the end (delta: 119.5 MB). Free memory was 54.0 MB in the beginning and 147.4 MB in the end (delta: -93.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. * Witness Printer took 10.06 ms. Allocated memory is still 226.5 MB. Free memory was 147.4 MB in the beginning and 146.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 15 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 6.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 371 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1520 SDtfs, 623 SDslu, 2189 SDs, 0 SdLazy, 35 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI2 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital194 mio100 ax100 hnf97 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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...