./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i --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_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 bea41ba7ef8afa8e6ccd1150cee95a00bf0377da ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:03:33,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:03:33,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:03:33,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:03:33,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:03:33,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:03:33,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:03:33,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:03:33,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:03:33,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:03:33,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:03:33,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:03:33,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:03:33,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:03:33,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:03:33,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:03:33,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:03:33,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:03:33,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:03:33,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:03:33,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:03:33,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:03:33,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:03:33,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:03:33,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:03:33,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:03:33,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:03:33,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:03:33,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:03:33,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:03:33,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:03:33,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:03:33,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:03:33,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:03:33,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:03:33,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:03:33,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:03:33,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:03:33,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:03:33,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:03:33,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:03:33,647 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:03:33,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:03:33,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:03:33,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:03:33,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:03:33,680 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:03:33,680 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:03:33,680 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:03:33,681 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:03:33,681 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:03:33,681 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:03:33,681 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:03:33,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:03:33,682 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:03:33,682 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:03:33,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:03:33,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:03:33,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:03:33,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:03:33,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:03:33,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:03:33,684 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:03:33,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:03:33,684 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:03:33,684 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:03:33,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:03:33,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:03:33,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:03:33,686 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:03:33,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:03:33,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:03:33,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:03:33,687 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:03:33,688 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:03:33,688 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_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bea41ba7ef8afa8e6ccd1150cee95a00bf0377da [2020-11-28 03:03:33,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:03:33,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:03:33,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:03:33,981 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:03:33,983 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:03:33,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2020-11-28 03:03:34,082 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/data/acbcdf3de/b54f5f5ff4a84130b5222ba03f5e809d/FLAGc9b2e766a [2020-11-28 03:03:34,554 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:03:34,557 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2020-11-28 03:03:34,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/data/acbcdf3de/b54f5f5ff4a84130b5222ba03f5e809d/FLAGc9b2e766a [2020-11-28 03:03:34,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/data/acbcdf3de/b54f5f5ff4a84130b5222ba03f5e809d [2020-11-28 03:03:34,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:03:34,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:03:34,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:34,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:03:34,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:03:34,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:34" (1/1) ... [2020-11-28 03:03:34,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4e83ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:34, skipping insertion in model container [2020-11-28 03:03:34,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:34" (1/1) ... [2020-11-28 03:03:34,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:03:34,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:03:35,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:35,264 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:03:35,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:35,350 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:03:35,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35 WrapperNode [2020-11-28 03:03:35,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:35,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:35,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:03:35,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:03:35,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:35,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:03:35,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:03:35,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:03:35,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:03:35,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:03:35,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:03:35,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:03:35,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 [2020-11-28 03:03:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:03:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:03:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:03:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:03:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:03:35,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:03:36,101 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:03:36,102 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 03:03:36,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:36 BoogieIcfgContainer [2020-11-28 03:03:36,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:03:36,105 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:03:36,105 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:03:36,108 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:03:36,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:03:36,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:03:34" (1/3) ... [2020-11-28 03:03:36,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c7ea705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:03:36, skipping insertion in model container [2020-11-28 03:03:36,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:03:36,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (2/3) ... [2020-11-28 03:03:36,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c7ea705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:03:36, skipping insertion in model container [2020-11-28 03:03:36,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:03:36,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:36" (3/3) ... [2020-11-28 03:03:36,113 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncat-alloca-2.i [2020-11-28 03:03:36,154 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:03:36,154 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:03:36,154 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:03:36,154 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:03:36,155 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:03:36,155 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:03:36,155 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:03:36,155 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:03:36,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-11-28 03:03:36,187 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2020-11-28 03:03:36,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:36,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:36,193 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:03:36,193 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:03:36,194 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:03:36,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-11-28 03:03:36,196 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2020-11-28 03:03:36,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:36,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:36,197 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:03:36,197 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:03:36,204 INFO L794 eck$LassoCheckResult]: Stem: 25#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 22#L534true assume !(main_~length1~0 < 1); 8#L534-2true assume !(main_~length2~0 < 1); 5#L537-1true assume !(main_~n~0 < 1); 26#L540-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 23#L547-3true [2020-11-28 03:03:36,204 INFO L796 eck$LassoCheckResult]: Loop: 23#L547-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 21#L547-2true main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 23#L547-3true [2020-11-28 03:03:36,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:36,210 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2020-11-28 03:03:36,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:36,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361940483] [2020-11-28 03:03:36,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:36,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:36,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:36,404 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:36,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:36,409 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2020-11-28 03:03:36,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:36,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423466436] [2020-11-28 03:03:36,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:36,437 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:36,451 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:36,457 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:36,459 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2020-11-28 03:03:36,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:36,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710086535] [2020-11-28 03:03:36,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:36,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:36,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:36,561 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:36,908 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-11-28 03:03:37,040 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:03:37,041 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:03:37,041 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:03:37,041 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:03:37,042 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:03:37,042 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:37,042 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:03:37,042 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:03:37,042 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration1_Lasso [2020-11-28 03:03:37,043 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:03:37,043 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:03:37,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,353 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-11-28 03:03:37,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:37,808 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:03:37,813 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 [2020-11-28 03:03:37,825 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 [2020-11-28 03:03:37,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:37,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:37,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:37,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:37,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:37,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:37,847 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:37,878 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 [2020-11-28 03:03:37,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:37,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:37,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:37,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:37,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:37,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:37,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:37,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 [2020-11-28 03:03:37,910 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 [2020-11-28 03:03:37,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:37,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:37,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:37,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:37,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:37,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:37,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:37,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:37,990 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 [2020-11-28 03:03:37,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:37,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:37,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:37,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:37,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:37,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:38,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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) [2020-11-28 03:03:38,045 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 [2020-11-28 03:03:38,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:38,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:38,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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) [2020-11-28 03:03:38,095 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 [2020-11-28 03:03:38,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:38,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:38,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:38,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 [2020-11-28 03:03:38,147 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 [2020-11-28 03:03:38,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:38,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:38,161 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 [2020-11-28 03:03:38,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:03:38,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:38,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:38,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:38,207 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:38,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:03:38,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:38,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:38,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:38,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:38,304 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 [2020-11-28 03:03:38,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:38,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:38,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:38,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 [2020-11-28 03:03:38,345 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 [2020-11-28 03:03:38,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:38,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:38,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:38,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 [2020-11-28 03:03:38,377 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 [2020-11-28 03:03:38,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:38,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:38,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:38,388 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:38,418 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 [2020-11-28 03:03:38,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:38,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:38,433 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:38,479 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 [2020-11-28 03:03:38,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:38,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:38,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:38,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:38,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:38,503 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:38,518 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:03:38,784 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-28 03:03:38,784 INFO L444 ModelExtractionUtils]: 9 out of 31 variables were initially zero. Simplification set additionally 19 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:38,825 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:38,828 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:03:38,829 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:03:38,829 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-28 03:03:38,891 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-11-28 03:03:38,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:38,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:03:38,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:38,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:03:38,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:38,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:39,014 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 [2020-11-28 03:03:39,016 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 3 states. [2020-11-28 03:03:39,118 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 3 states. Result 64 states and 92 transitions. Complement of second has 7 states. [2020-11-28 03:03:39,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:03:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:03:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2020-11-28 03:03:39,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 03:03:39,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:39,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-28 03:03:39,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:39,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 03:03:39,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:39,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 92 transitions. [2020-11-28 03:03:39,136 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-11-28 03:03:39,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 20 states and 27 transitions. [2020-11-28 03:03:39,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-28 03:03:39,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-28 03:03:39,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2020-11-28 03:03:39,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:03:39,143 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-11-28 03:03:39,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2020-11-28 03:03:39,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-28 03:03:39,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 03:03:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2020-11-28 03:03:39,170 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-11-28 03:03:39,170 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-11-28 03:03:39,171 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:03:39,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2020-11-28 03:03:39,172 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-11-28 03:03:39,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:39,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:39,173 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:39,173 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:03:39,173 INFO L794 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 179#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 172#L534 assume !(main_~length1~0 < 1); 173#L534-2 assume !(main_~length2~0 < 1); 168#L537-1 assume !(main_~n~0 < 1); 169#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 174#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 175#L547-4 main_~i~1 := 0; 178#L552-3 [2020-11-28 03:03:39,173 INFO L796 eck$LassoCheckResult]: Loop: 178#L552-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet16, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet16; 183#L552-2 main_#t~post15 := main_~i~1;main_~i~1 := 1 + main_#t~post15;havoc main_#t~post15; 178#L552-3 [2020-11-28 03:03:39,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:39,174 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2020-11-28 03:03:39,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:39,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091057008] [2020-11-28 03:03:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:39,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091057008] [2020-11-28 03:03:39,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:39,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:03:39,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670423205] [2020-11-28 03:03:39,257 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:03:39,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:39,257 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2020-11-28 03:03:39,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:39,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24291223] [2020-11-28 03:03:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:39,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:39,278 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:39,282 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:39,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:39,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:03:39,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:39,354 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-11-28 03:03:39,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:39,488 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2020-11-28 03:03:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:03:39,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2020-11-28 03:03:39,491 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-11-28 03:03:39,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 27 transitions. [2020-11-28 03:03:39,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-28 03:03:39,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-28 03:03:39,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2020-11-28 03:03:39,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:03:39,493 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2020-11-28 03:03:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2020-11-28 03:03:39,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-11-28 03:03:39,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 03:03:39,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2020-11-28 03:03:39,495 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2020-11-28 03:03:39,495 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2020-11-28 03:03:39,495 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:03:39,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2020-11-28 03:03:39,496 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-11-28 03:03:39,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:39,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:39,497 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:39,497 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:03:39,497 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 232#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 225#L534 assume !(main_~length1~0 < 1); 226#L534-2 assume !(main_~length2~0 < 1); 221#L537-1 assume !(main_~n~0 < 1); 222#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 227#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 223#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 224#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 228#L547-4 main_~i~1 := 0; 231#L552-3 [2020-11-28 03:03:39,497 INFO L796 eck$LassoCheckResult]: Loop: 231#L552-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet16, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet16; 236#L552-2 main_#t~post15 := main_~i~1;main_~i~1 := 1 + main_#t~post15;havoc main_#t~post15; 231#L552-3 [2020-11-28 03:03:39,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:39,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1713550361, now seen corresponding path program 1 times [2020-11-28 03:03:39,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:39,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139365569] [2020-11-28 03:03:39,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:39,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:39,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:39,550 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:39,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:39,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 2 times [2020-11-28 03:03:39,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:39,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537274989] [2020-11-28 03:03:39,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:39,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:39,564 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:39,566 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:39,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:39,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1749424059, now seen corresponding path program 1 times [2020-11-28 03:03:39,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:39,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432516942] [2020-11-28 03:03:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:39,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432516942] [2020-11-28 03:03:39,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649064238] [2020-11-28 03:03:39,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:03:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:39,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:03:39,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:39,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:39,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:03:39,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-11-28 03:03:39,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554862851] [2020-11-28 03:03:39,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:39,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:03:39,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:03:39,886 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 10 Second operand 10 states. [2020-11-28 03:03:40,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:40,149 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2020-11-28 03:03:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:03:40,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 63 transitions. [2020-11-28 03:03:40,152 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 20 [2020-11-28 03:03:40,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 63 transitions. [2020-11-28 03:03:40,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2020-11-28 03:03:40,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2020-11-28 03:03:40,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 63 transitions. [2020-11-28 03:03:40,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:03:40,154 INFO L691 BuchiCegarLoop]: Abstraction has 51 states and 63 transitions. [2020-11-28 03:03:40,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 63 transitions. [2020-11-28 03:03:40,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 29. [2020-11-28 03:03:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-28 03:03:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2020-11-28 03:03:40,157 INFO L714 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2020-11-28 03:03:40,157 INFO L594 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2020-11-28 03:03:40,157 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:03:40,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2020-11-28 03:03:40,158 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-11-28 03:03:40,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:40,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:40,164 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:40,165 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:03:40,165 INFO L794 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 367#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 360#L534 assume !(main_~length1~0 < 1); 361#L534-2 assume !(main_~length2~0 < 1); 368#L537-1 assume !(main_~n~0 < 1); 374#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 375#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 380#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 379#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 378#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 377#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 376#L547-4 main_~i~1 := 0; 373#L552-3 [2020-11-28 03:03:40,166 INFO L796 eck$LassoCheckResult]: Loop: 373#L552-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet16, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet16; 372#L552-2 main_#t~post15 := main_~i~1;main_~i~1 := 1 + main_#t~post15;havoc main_#t~post15; 373#L552-3 [2020-11-28 03:03:40,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:40,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1749479291, now seen corresponding path program 2 times [2020-11-28 03:03:40,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:40,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616267078] [2020-11-28 03:03:40,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:40,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:40,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:40,226 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:40,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:40,226 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 3 times [2020-11-28 03:03:40,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:40,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987482612] [2020-11-28 03:03:40,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:40,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:40,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:40,254 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:40,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:40,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1917387421, now seen corresponding path program 2 times [2020-11-28 03:03:40,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:40,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493555810] [2020-11-28 03:03:40,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:40,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:40,306 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:40,315 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:40,763 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2020-11-28 03:03:40,896 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-11-28 03:03:40,899 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:03:40,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:03:40,899 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:03:40,899 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:03:40,899 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:03:40,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:40,899 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:03:40,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:03:40,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration4_Lasso [2020-11-28 03:03:40,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:03:40,900 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:03:40,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:40,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,098 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-28 03:03:41,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:41,402 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-11-28 03:03:41,730 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:03:41,731 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 [2020-11-28 03:03:41,742 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 [2020-11-28 03:03:41,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:41,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:41,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:41,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:41,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:41,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:41,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:41,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/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 [2020-11-28 03:03:41,788 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 [2020-11-28 03:03:41,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:41,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:41,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:41,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:41,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:41,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:41,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:41,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:41,853 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:41,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:41,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:41,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:41,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:41,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:41,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:41,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:41,916 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 [2020-11-28 03:03:41,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:41,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:41,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:41,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:41,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:41,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:41,930 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:41,973 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 [2020-11-28 03:03:41,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:41,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:41,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:41,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:41,980 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:41,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:41,988 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:42,025 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 [2020-11-28 03:03:42,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:42,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:42,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:42,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:42,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:42,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:42,035 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:42,075 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 [2020-11-28 03:03:42,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:42,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:42,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:42,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:42,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:42,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:42,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:42,125 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 [2020-11-28 03:03:42,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:42,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:42,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:42,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:42,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:42,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:42,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:42,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:42,151 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 [2020-11-28 03:03:42,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:42,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:42,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:42,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:42,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:42,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:42,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:03:42,225 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-28 03:03:42,225 INFO L444 ModelExtractionUtils]: 15 out of 34 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:42,229 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:42,233 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:03:42,233 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:03:42,233 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2020-11-28 03:03:42,278 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-11-28 03:03:42,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:42,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:03:42,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:42,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:03:42,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:42,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:42,360 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 [2020-11-28 03:03:42,360 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 14 Second operand 3 states. [2020-11-28 03:03:42,393 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 14. Second operand 3 states. Result 39 states and 54 transitions. Complement of second has 6 states. [2020-11-28 03:03:42,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:03:42,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:03:42,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-11-28 03:03:42,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-28 03:03:42,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:42,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2020-11-28 03:03:42,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:42,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 12 letters. Loop has 4 letters. [2020-11-28 03:03:42,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:42,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 54 transitions. [2020-11-28 03:03:42,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-28 03:03:42,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 30 states and 40 transitions. [2020-11-28 03:03:42,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-11-28 03:03:42,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-11-28 03:03:42,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2020-11-28 03:03:42,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:03:42,400 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-28 03:03:42,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2020-11-28 03:03:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-28 03:03:42,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 03:03:42,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-28 03:03:42,407 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-28 03:03:42,407 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-28 03:03:42,407 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:03:42,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 40 transitions. [2020-11-28 03:03:42,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-28 03:03:42,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:42,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:42,409 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:42,410 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:03:42,410 INFO L794 eck$LassoCheckResult]: Stem: 527#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 524#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 517#L534 assume !(main_~length1~0 < 1); 518#L534-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 513#L537-1 assume !(main_~n~0 < 1); 514#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 519#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 515#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 516#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 520#L547-4 main_~i~1 := 0; 523#L552-3 assume !(main_~i~1 < main_~length2~0 - 1); 509#L552-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~dst.base, cstrncat_#in~dst.offset, cstrncat_#in~src.base, cstrncat_#in~src.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post5.base, cstrncat_#t~post5.offset, cstrncat_#t~mem6, cstrncat_#t~post7.base, cstrncat_#t~post7.offset, cstrncat_#t~pre4, cstrncat_~d~0.base, cstrncat_~d~0.offset, cstrncat_~s~0.base, cstrncat_~s~0.offset, cstrncat_~dst.base, cstrncat_~dst.offset, cstrncat_~src.base, cstrncat_~src.offset, cstrncat_~n;cstrncat_~dst.base, cstrncat_~dst.offset := cstrncat_#in~dst.base, cstrncat_#in~dst.offset;cstrncat_~src.base, cstrncat_~src.offset := cstrncat_#in~src.base, cstrncat_#in~src.offset;cstrncat_~n := cstrncat_#in~n; 510#L516 assume 0 != cstrncat_~n % 4294967296;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_~dst.base, cstrncat_~dst.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~src.base, cstrncat_~src.offset; 511#L519-3 [2020-11-28 03:03:42,410 INFO L796 eck$LassoCheckResult]: Loop: 511#L519-3 call cstrncat_#t~mem2 := read~int(cstrncat_~d~0.base, cstrncat_~d~0.offset, 1); 512#L519-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~d~0.base, cstrncat_~d~0.offset;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 511#L519-3 [2020-11-28 03:03:42,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:42,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1209403751, now seen corresponding path program 1 times [2020-11-28 03:03:42,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:42,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535742371] [2020-11-28 03:03:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:42,465 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:42,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:42,486 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:42,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:42,487 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 1 times [2020-11-28 03:03:42,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:42,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873901390] [2020-11-28 03:03:42,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:42,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:42,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:42,495 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:42,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:42,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1699134462, now seen corresponding path program 1 times [2020-11-28 03:03:42,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:42,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680879812] [2020-11-28 03:03:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:42,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:42,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680879812] [2020-11-28 03:03:42,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868704117] [2020-11-28 03:03:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:03:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:42,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 33 conjunts are in the unsatisfiable core [2020-11-28 03:03:42,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:42,834 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-28 03:03:42,836 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:03:42,845 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:03:42,845 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:03:42,846 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2020-11-28 03:03:43,001 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2020-11-28 03:03:43,001 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:03:43,015 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:03:43,029 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-11-28 03:03:43,030 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:61, output treesize:42 [2020-11-28 03:03:43,555 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:03:43,556 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 27 [2020-11-28 03:03:43,557 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-11-28 03:03:43,624 INFO L625 ElimStorePlain]: treesize reduction 18, result has 66.0 percent of original size [2020-11-28 03:03:43,632 INFO L545 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:03:43,632 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:69, output treesize:3 [2020-11-28 03:03:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:43,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:03:43,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2020-11-28 03:03:43,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835841406] [2020-11-28 03:03:43,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:43,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-28 03:03:43,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-11-28 03:03:43,688 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. cyclomatic complexity: 15 Second operand 16 states. [2020-11-28 03:03:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:44,233 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2020-11-28 03:03:44,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:03:44,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2020-11-28 03:03:44,243 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-11-28 03:03:44,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 56 transitions. [2020-11-28 03:03:44,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-11-28 03:03:44,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2020-11-28 03:03:44,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 56 transitions. [2020-11-28 03:03:44,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:03:44,246 INFO L691 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions. [2020-11-28 03:03:44,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 56 transitions. [2020-11-28 03:03:44,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 38. [2020-11-28 03:03:44,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-28 03:03:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2020-11-28 03:03:44,250 INFO L714 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2020-11-28 03:03:44,251 INFO L594 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2020-11-28 03:03:44,251 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 03:03:44,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 49 transitions. [2020-11-28 03:03:44,252 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-28 03:03:44,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:44,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:44,253 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:44,253 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:03:44,253 INFO L794 eck$LassoCheckResult]: Stem: 679#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 676#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 667#L534 assume !(main_~length1~0 < 1); 668#L534-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 677#L537-1 assume !(main_~n~0 < 1); 684#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 669#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 665#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 666#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 670#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 696#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 674#L547-4 main_~i~1 := 0; 675#L552-3 assume !(main_~i~1 < main_~length2~0 - 1); 662#L552-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~dst.base, cstrncat_#in~dst.offset, cstrncat_#in~src.base, cstrncat_#in~src.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post5.base, cstrncat_#t~post5.offset, cstrncat_#t~mem6, cstrncat_#t~post7.base, cstrncat_#t~post7.offset, cstrncat_#t~pre4, cstrncat_~d~0.base, cstrncat_~d~0.offset, cstrncat_~s~0.base, cstrncat_~s~0.offset, cstrncat_~dst.base, cstrncat_~dst.offset, cstrncat_~src.base, cstrncat_~src.offset, cstrncat_~n;cstrncat_~dst.base, cstrncat_~dst.offset := cstrncat_#in~dst.base, cstrncat_#in~dst.offset;cstrncat_~src.base, cstrncat_~src.offset := cstrncat_#in~src.base, cstrncat_#in~src.offset;cstrncat_~n := cstrncat_#in~n; 661#L516 assume 0 != cstrncat_~n % 4294967296;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_~dst.base, cstrncat_~dst.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~src.base, cstrncat_~src.offset; 659#L519-3 [2020-11-28 03:03:44,253 INFO L796 eck$LassoCheckResult]: Loop: 659#L519-3 call cstrncat_#t~mem2 := read~int(cstrncat_~d~0.base, cstrncat_~d~0.offset, 1); 660#L519-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~d~0.base, cstrncat_~d~0.offset;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 659#L519-3 [2020-11-28 03:03:44,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:44,253 INFO L82 PathProgramCache]: Analyzing trace with hash -948699273, now seen corresponding path program 2 times [2020-11-28 03:03:44,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:44,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972400199] [2020-11-28 03:03:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:44,278 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:44,300 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:44,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:44,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:44,312 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 2 times [2020-11-28 03:03:44,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:44,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172575241] [2020-11-28 03:03:44,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:44,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:44,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:44,327 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:44,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:44,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1166932644, now seen corresponding path program 2 times [2020-11-28 03:03:44,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:44,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431500830] [2020-11-28 03:03:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:44,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:44,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:44,405 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:45,109 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 131 [2020-11-28 03:03:45,312 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-11-28 03:03:45,314 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:03:45,314 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:03:45,314 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:03:45,314 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:03:45,314 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:03:45,314 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:45,314 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:03:45,314 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:03:45,314 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration6_Lasso [2020-11-28 03:03:45,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:03:45,314 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:03:45,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,799 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-11-28 03:03:45,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:45,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:03:46,276 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-28 03:03:46,636 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-28 03:03:46,685 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:03:46,685 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:46,696 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 [2020-11-28 03:03:46,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:46,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:46,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:46,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:46,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:46,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:46,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:46,724 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 [2020-11-28 03:03:46,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:46,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:46,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:46,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:46,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:46,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:46,737 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:46,759 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 [2020-11-28 03:03:46,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:46,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:46,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:46,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:46,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:46,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:46,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:46,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:46,785 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 [2020-11-28 03:03:46,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:46,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:46,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:46,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:46,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:46,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:46,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:46,811 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 [2020-11-28 03:03:46,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:46,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:46,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:46,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:46,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:46,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:46,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:46,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:46,836 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 [2020-11-28 03:03:46,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:46,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:46,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:46,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:46,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:46,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:46,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:46,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:46,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:03:46,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:46,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:46,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:46,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:46,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:46,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:46,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:46,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:46,908 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 [2020-11-28 03:03:46,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:46,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:46,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:46,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:46,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:46,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:46,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:46,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:46,980 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 [2020-11-28 03:03:46,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:46,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:46,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:46,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:46,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:46,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:46,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:46,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,021 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 [2020-11-28 03:03:47,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:47,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:47,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:47,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:47,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:47,025 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:47,065 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 [2020-11-28 03:03:47,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:47,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:47,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:47,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:47,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:47,110 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 [2020-11-28 03:03:47,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:47,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:47,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:47,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:47,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:47,147 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 [2020-11-28 03:03:47,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:47,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:47,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:47,176 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:47,217 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 [2020-11-28 03:03:47,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:47,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:47,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:47,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:47,253 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:47,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:47,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:47,258 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:47,260 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,286 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 [2020-11-28 03:03:47,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:47,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:47,289 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:47,289 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:47,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,313 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 [2020-11-28 03:03:47,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:47,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,315 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:03:47,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:47,315 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 03:03:47,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:47,317 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,339 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 [2020-11-28 03:03:47,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:47,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:47,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:47,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:47,345 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,366 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 [2020-11-28 03:03:47,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:47,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:47,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:47,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:47,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:03:47,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:47,436 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:03:47,528 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-11-28 03:03:47,528 INFO L444 ModelExtractionUtils]: 16 out of 64 variables were initially zero. Simplification set additionally 45 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0540fad2-f885-4950-8d1d-f42f2cc4aa5a/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:03:47,542 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:47,545 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:03:47,545 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:03:47,545 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrncat_~d~0.base)_1, ULTIMATE.start_cstrncat_~d~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrncat_~d~0.base)_1 - 1*ULTIMATE.start_cstrncat_~d~0.offset Supporting invariants [] [2020-11-28 03:03:47,614 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-11-28 03:03:47,617 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:03:47,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:47,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:03:47,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:47,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:03:47,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:47,698 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 [2020-11-28 03:03:47,698 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 49 transitions. cyclomatic complexity: 16 Second operand 3 states. [2020-11-28 03:03:47,729 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 49 transitions. cyclomatic complexity: 16. Second operand 3 states. Result 46 states and 60 transitions. Complement of second has 6 states. [2020-11-28 03:03:47,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:03:47,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:03:47,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-11-28 03:03:47,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-28 03:03:47,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:47,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-28 03:03:47,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:47,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 15 letters. Loop has 4 letters. [2020-11-28 03:03:47,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:47,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 60 transitions. [2020-11-28 03:03:47,733 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:03:47,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 0 states and 0 transitions. [2020-11-28 03:03:47,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:03:47,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:03:47,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:03:47,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:03:47,733 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:03:47,733 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:03:47,733 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:03:47,734 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-28 03:03:47,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:03:47,734 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:03:47,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:03:47,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:03:47 BoogieIcfgContainer [2020-11-28 03:03:47,739 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:03:47,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:47,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:47,742 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:47,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:36" (3/4) ... [2020-11-28 03:03:47,745 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:03:47,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:47,747 INFO L168 Benchmark]: Toolchain (without parser) took 12844.19 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 73.0 MB in the beginning and 128.3 MB in the end (delta: -55.4 MB). Peak memory consumption was 59.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:47,747 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 102.8 MB. Free memory was 61.2 MB in the beginning and 61.2 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:47,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.19 ms. Allocated memory is still 102.8 MB. Free memory was 72.7 MB in the beginning and 67.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:47,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.98 ms. Allocated memory is still 102.8 MB. Free memory was 67.9 MB in the beginning and 65.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:47,748 INFO L168 Benchmark]: Boogie Preprocessor took 27.23 ms. Allocated memory is still 102.8 MB. Free memory was 65.9 MB in the beginning and 64.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:47,749 INFO L168 Benchmark]: RCFGBuilder took 680.57 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 64.6 MB in the beginning and 99.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:47,749 INFO L168 Benchmark]: BuchiAutomizer took 11634.76 ms. Allocated memory was 123.7 MB in the beginning and 218.1 MB in the end (delta: 94.4 MB). Free memory was 99.7 MB in the beginning and 129.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 64.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:47,750 INFO L168 Benchmark]: Witness Printer took 5.89 ms. Allocated memory is still 218.1 MB. Free memory was 129.4 MB in the beginning and 128.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:47,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 102.8 MB. Free memory was 61.2 MB in the beginning and 61.2 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 447.19 ms. Allocated memory is still 102.8 MB. Free memory was 72.7 MB in the beginning and 67.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.98 ms. Allocated memory is still 102.8 MB. Free memory was 67.9 MB in the beginning and 65.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.23 ms. Allocated memory is still 102.8 MB. Free memory was 65.9 MB in the beginning and 64.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 680.57 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 64.6 MB in the beginning and 99.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11634.76 ms. Allocated memory was 123.7 MB in the beginning and 218.1 MB in the end (delta: 94.4 MB). Free memory was 99.7 MB in the beginning and 129.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 64.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.89 ms. Allocated memory is still 218.1 MB. Free memory was 129.4 MB in the beginning and 128.3 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[d] + -1 * d and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 10.0s. Construction of modules took 0.3s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 38 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 126 SDtfs, 340 SDslu, 258 SDs, 0 SdLazy, 206 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital180 mio100 ax110 hnf97 lsp85 ukn73 mio100 lsp59 div100 bol100 ite100 ukn100 eq171 hnf90 smp98 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...