./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 b812e7d14425eea3a24125f5e2db40eadfc6c14c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:58:58,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:58:58,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:58:58,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:58:58,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:58:58,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:58:58,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:58:58,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:58:58,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:58:58,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:58:58,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:58:58,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:58:58,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:58:58,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:58:58,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:58:58,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:58:58,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:58:58,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:58:58,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:58:58,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:58:58,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:58:58,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:58:58,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:58:58,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:58:58,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:58:58,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:58:58,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:58:58,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:58:58,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:58:58,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:58:58,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:58:58,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:58:58,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:58:58,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:58:58,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:58:58,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:58:58,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:58:58,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:58:58,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:58:58,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:58:58,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:58:58,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 14:58:58,631 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:58:58,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:58:58,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:58:58,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:58:58,632 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:58:58,632 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:58:58,633 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:58:58,633 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:58:58,633 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:58:58,633 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:58:58,633 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:58:58,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:58:58,634 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:58:58,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:58:58,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:58:58,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:58:58,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:58:58,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:58:58,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:58:58,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:58:58,635 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:58:58,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:58:58,635 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:58:58,635 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:58:58,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:58:58,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:58:58,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:58:58,636 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:58:58,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:58:58,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:58:58,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:58:58,636 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:58:58,637 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:58:58,637 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 -> b812e7d14425eea3a24125f5e2db40eadfc6c14c [2019-12-07 14:58:58,745 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:58:58,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:58:58,758 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:58:58,759 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:58:58,759 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:58:58,760 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i [2019-12-07 14:58:58,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/data/bcbbe1b24/ae05b648a06644048b955c28a2f29450/FLAGda8a5298a [2019-12-07 14:58:59,240 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:58:59,240 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i [2019-12-07 14:58:59,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/data/bcbbe1b24/ae05b648a06644048b955c28a2f29450/FLAGda8a5298a [2019-12-07 14:58:59,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/data/bcbbe1b24/ae05b648a06644048b955c28a2f29450 [2019-12-07 14:58:59,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:58:59,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:58:59,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:58:59,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:58:59,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:58:59,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eba8e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59, skipping insertion in model container [2019-12-07 14:58:59,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:58:59,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:58:59,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:58:59,503 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:58:59,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:58:59,558 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:58:59,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59 WrapperNode [2019-12-07 14:58:59,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:58:59,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:58:59,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:58:59,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:58:59,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:58:59,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:58:59,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:58:59,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:58:59,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... [2019-12-07 14:58:59,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:58:59,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:58:59,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:58:59,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:58:59,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:58:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:58:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:58:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:58:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:58:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:58:59,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:58:59,789 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:58:59,789 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 14:58:59,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:58:59 BoogieIcfgContainer [2019-12-07 14:58:59,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:58:59,791 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:58:59,791 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:58:59,793 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:58:59,794 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:58:59,794 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:58:59" (1/3) ... [2019-12-07 14:58:59,794 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@697a9661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:58:59, skipping insertion in model container [2019-12-07 14:58:59,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:58:59,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:59" (2/3) ... [2019-12-07 14:58:59,795 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@697a9661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:58:59, skipping insertion in model container [2019-12-07 14:58:59,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:58:59,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:58:59" (3/3) ... [2019-12-07 14:58:59,796 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrlen-alloca-1.i [2019-12-07 14:58:59,824 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:58:59,825 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:58:59,825 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:58:59,825 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:58:59,825 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:58:59,825 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:58:59,825 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:58:59,825 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:58:59,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 14:58:59,847 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-12-07 14:58:59,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:58:59,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:58:59,852 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 14:58:59,852 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:58:59,852 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:58:59,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 14:58:59,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-12-07 14:58:59,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:58:59,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:58:59,853 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 14:58:59,854 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:58:59,858 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 7#L524true assume !(main_~length1~0 < 1); 11#L524-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 5#L528-3true [2019-12-07 14:58:59,858 INFO L796 eck$LassoCheckResult]: Loop: 5#L528-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3#L528-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5#L528-3true [2019-12-07 14:58:59,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:58:59,863 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-12-07 14:58:59,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:58:59,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753466159] [2019-12-07 14:58:59,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:58:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:58:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:58:59,958 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:58:59,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:58:59,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2019-12-07 14:58:59,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:58:59,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530768382] [2019-12-07 14:58:59,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:58:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:58:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:58:59,972 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:58:59,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:58:59,973 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2019-12-07 14:58:59,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:58:59,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473173619] [2019-12-07 14:58:59,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:58:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:58:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,001 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:59:00,139 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:59:00,140 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:59:00,140 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:59:00,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:59:00,140 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:59:00,140 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:00,140 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:59:00,141 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:59:00,141 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-1.i_Iteration1_Lasso [2019-12-07 14:59:00,141 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:59:00,141 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:59:00,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:00,410 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:59:00,413 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:00,417 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 [2019-12-07 14:59:00,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:00,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:00,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:00,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:00,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:00,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:00,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:00,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:00,427 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 [2019-12-07 14:59:00,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:00,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:00,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:00,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:00,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:00,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:00,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:00,430 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:00,434 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 [2019-12-07 14:59:00,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:00,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:00,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:00,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:00,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:00,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:00,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:00,438 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:00,442 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 [2019-12-07 14:59:00,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:00,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:00,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:00,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:00,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:00,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:00,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:00,453 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 [2019-12-07 14:59:00,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:00,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:00,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:00,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:00,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:00,457 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:00,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:00,465 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 [2019-12-07 14:59:00,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:00,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:00,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:00,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:00,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:00,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:00,472 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:00,476 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 [2019-12-07 14:59:00,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:00,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:00,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:00,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:00,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:00,478 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:00,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:00,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:00,484 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 [2019-12-07 14:59:00,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:00,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:00,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:00,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:00,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:00,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:00,503 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:59:00,523 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 14:59:00,523 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:00,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:59:00,530 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:59:00,530 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:59:00,530 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 [] [2019-12-07 14:59:00,540 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 14:59:00,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:59:00,570 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:59:00,571 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:59:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:59:00,581 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:59:00,581 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:59:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:59:00,601 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 [2019-12-07 14:59:00,602 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-12-07 14:59:00,636 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 45 transitions. Complement of second has 7 states. [2019-12-07 14:59:00,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:59:00,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:59:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2019-12-07 14:59:00,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 14:59:00,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:59:00,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 14:59:00,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:59:00,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 4 letters. Loop has 4 letters. [2019-12-07 14:59:00,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:59:00,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2019-12-07 14:59:00,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:59:00,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 11 states and 14 transitions. [2019-12-07 14:59:00,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-12-07 14:59:00,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-12-07 14:59:00,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-12-07 14:59:00,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:59:00,649 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 14:59:00,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-12-07 14:59:00,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 14:59:00,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 14:59:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-12-07 14:59:00,667 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 14:59:00,667 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 14:59:00,667 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:59:00,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-12-07 14:59:00,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:59:00,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:59:00,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:59:00,668 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:59:00,668 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:59:00,669 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 107#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 108#L524 assume !(main_~length1~0 < 1); 117#L524-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 114#L528-3 assume !(main_~i~0 < main_~length1~0 - 1); 115#L528-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~str.base, cstrlen_#in~str.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 113#L518-4 [2019-12-07 14:59:00,669 INFO L796 eck$LassoCheckResult]: Loop: 113#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 116#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 112#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 113#L518-4 [2019-12-07 14:59:00,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:00,669 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2019-12-07 14:59:00,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:59:00,669 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794882528] [2019-12-07 14:59:00,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:59:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,693 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:59:00,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:00,694 INFO L82 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 1 times [2019-12-07 14:59:00,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:59:00,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556219096] [2019-12-07 14:59:00,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:59:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,704 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:59:00,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:00,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1183925680, now seen corresponding path program 1 times [2019-12-07 14:59:00,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:59:00,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021032138] [2019-12-07 14:59:00,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:59:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:59:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:59:00,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021032138] [2019-12-07 14:59:00,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:59:00,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 14:59:00,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855494424] [2019-12-07 14:59:00,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:59:00,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 14:59:00,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:59:00,829 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 7 states. [2019-12-07 14:59:00,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:59:00,881 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-12-07 14:59:00,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:59:00,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2019-12-07 14:59:00,883 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:59:00,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 14 transitions. [2019-12-07 14:59:00,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-12-07 14:59:00,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-12-07 14:59:00,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2019-12-07 14:59:00,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:59:00,884 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-07 14:59:00,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2019-12-07 14:59:00,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-12-07 14:59:00,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 14:59:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-07 14:59:00,885 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 14:59:00,885 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 14:59:00,885 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:59:00,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2019-12-07 14:59:00,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:59:00,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:59:00,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:59:00,886 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:59:00,886 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:59:00,886 INFO L794 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 149#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 150#L524 assume !(main_~length1~0 < 1); 159#L524-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 156#L528-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 151#L528-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 152#L528-3 assume !(main_~i~0 < main_~length1~0 - 1); 157#L528-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~str.base, cstrlen_#in~str.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 155#L518-4 [2019-12-07 14:59:00,886 INFO L796 eck$LassoCheckResult]: Loop: 155#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 158#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 154#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 155#L518-4 [2019-12-07 14:59:00,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:00,886 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2019-12-07 14:59:00,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:59:00,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630092313] [2019-12-07 14:59:00,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:59:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,904 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:59:00,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:00,905 INFO L82 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 2 times [2019-12-07 14:59:00,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:59:00,905 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860058750] [2019-12-07 14:59:00,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:59:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,911 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:59:00,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:00,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1235379726, now seen corresponding path program 1 times [2019-12-07 14:59:00,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:59:00,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165984698] [2019-12-07 14:59:00,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:59:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:00,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:59:01,097 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-12-07 14:59:01,146 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:59:01,146 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:59:01,146 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:59:01,146 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:59:01,146 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:59:01,146 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:01,147 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:59:01,147 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:59:01,147 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-1.i_Iteration3_Lasso [2019-12-07 14:59:01,147 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:59:01,147 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:59:01,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:01,473 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:59:01,473 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:01,476 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 [2019-12-07 14:59:01,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:01,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:01,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:01,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:01,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:01,478 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:01,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:01,479 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:01,483 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 [2019-12-07 14:59:01,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:01,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:01,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:01,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:01,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:01,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:01,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:01,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:01,489 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 [2019-12-07 14:59:01,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:01,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:01,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:01,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:01,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:01,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:01,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:01,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:01,496 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 [2019-12-07 14:59:01,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:01,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:01,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:01,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:01,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:01,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:01,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:01,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:01,503 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 [2019-12-07 14:59:01,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:01,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:01,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:01,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:01,506 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:01,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:01,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:01,513 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 [2019-12-07 14:59:01,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:01,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:01,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:01,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:01,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:01,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:01,536 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:59:01,563 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-12-07 14:59:01,563 INFO L444 ModelExtractionUtils]: 16 out of 31 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:01,566 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:59:01,569 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 14:59:01,569 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:59:01,569 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~s~0.offset) = -2*ULTIMATE.start_cstrlen_~s~0.offset + 3 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 + 2 >= 0] [2019-12-07 14:59:01,582 INFO L297 tatePredicateManager]: 4 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 14:59:01,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:59:01,619 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 14:59:01,619 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:59:01,644 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-12-07 14:59:01,644 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:59:01,649 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:59:01,649 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:59:01,649 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-12-07 14:59:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:59:01,689 WARN L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 14:59:01,689 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:59:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:59:01,702 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2019-12-07 14:59:01,702 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 6 states. [2019-12-07 14:59:01,770 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 6 states. Result 23 states and 27 transitions. Complement of second has 9 states. [2019-12-07 14:59:01,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2019-12-07 14:59:01,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 14:59:01,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 18 transitions. [2019-12-07 14:59:01,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 18 transitions. Stem has 8 letters. Loop has 3 letters. [2019-12-07 14:59:01,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:59:01,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 18 transitions. Stem has 11 letters. Loop has 3 letters. [2019-12-07 14:59:01,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:59:01,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 18 transitions. Stem has 8 letters. Loop has 6 letters. [2019-12-07 14:59:01,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:59:01,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 27 transitions. [2019-12-07 14:59:01,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:59:01,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 16 states and 18 transitions. [2019-12-07 14:59:01,773 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 14:59:01,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 14:59:01,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 18 transitions. [2019-12-07 14:59:01,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:59:01,773 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-12-07 14:59:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 18 transitions. [2019-12-07 14:59:01,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2019-12-07 14:59:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 14:59:01,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-12-07 14:59:01,774 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-12-07 14:59:01,775 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-12-07 14:59:01,775 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 14:59:01,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2019-12-07 14:59:01,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:59:01,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:59:01,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:59:01,775 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-12-07 14:59:01,775 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:59:01,776 INFO L794 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 281#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 282#L524 assume !(main_~length1~0 < 1); 292#L524-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 288#L528-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 283#L528-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 284#L528-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 289#L528-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 293#L528-3 assume !(main_~i~0 < main_~length1~0 - 1); 291#L528-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~str.base, cstrlen_#in~str.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 287#L518-4 [2019-12-07 14:59:01,776 INFO L796 eck$LassoCheckResult]: Loop: 287#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 290#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 286#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 287#L518-4 [2019-12-07 14:59:01,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:01,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1899756335, now seen corresponding path program 2 times [2019-12-07 14:59:01,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:59:01,776 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142120483] [2019-12-07 14:59:01,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:59:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:01,792 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:59:01,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:01,793 INFO L82 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 3 times [2019-12-07 14:59:01,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:59:01,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121748905] [2019-12-07 14:59:01,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:59:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:01,798 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:59:01,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:01,798 INFO L82 PathProgramCache]: Analyzing trace with hash -856889620, now seen corresponding path program 2 times [2019-12-07 14:59:01,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:59:01,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338372045] [2019-12-07 14:59:01,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:59:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:59:01,817 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:59:02,011 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-12-07 14:59:02,057 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:59:02,057 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:59:02,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:59:02,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:59:02,057 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:59:02,057 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:02,057 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:59:02,057 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:59:02,057 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-1.i_Iteration4_Lasso [2019-12-07 14:59:02,057 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:59:02,057 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:59:02,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:59:02,341 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:59:02,341 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:02,345 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 [2019-12-07 14:59:02,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:02,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:02,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:02,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:02,352 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 [2019-12-07 14:59:02,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:02,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:02,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:02,355 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:02,359 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 [2019-12-07 14:59:02,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:02,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:02,364 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:02,369 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 [2019-12-07 14:59:02,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:02,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:02,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:02,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:02,376 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 [2019-12-07 14:59:02,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:02,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:02,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:02,384 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 [2019-12-07 14:59:02,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:02,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:02,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:02,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:02,391 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 [2019-12-07 14:59:02,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:02,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:02,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:02,400 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 [2019-12-07 14:59:02,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:02,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:02,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:02,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:02,407 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 [2019-12-07 14:59:02,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:02,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:02,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:02,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:02,413 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 [2019-12-07 14:59:02,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:02,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:02,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:02,416 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:59:02,420 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 [2019-12-07 14:59:02,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:59:02,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:59:02,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:59:02,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:02,426 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 [2019-12-07 14:59:02,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,430 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:02,430 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:02,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:02,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:59:02,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:02,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:02,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:02,453 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 [2019-12-07 14:59:02,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:59:02,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:59:02,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:59:02,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:59:02,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:59:02,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:59:02,468 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:59:02,493 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2019-12-07 14:59:02,493 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3965bf5-999f-4edc-bc9a-ff3f8644c14e/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 [2019-12-07 14:59:02,495 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:59:02,497 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:59:02,497 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:59:02,498 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_3, ULTIMATE.start_cstrlen_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_3 - 1*ULTIMATE.start_cstrlen_~s~0.offset Supporting invariants [] [2019-12-07 14:59:02,505 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 14:59:02,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:59:02,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:59:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:59:02,533 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:59:02,533 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:59:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:59:02,545 WARN L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:59:02,546 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:59:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:59:02,558 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 14:59:02,558 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand 4 states. [2019-12-07 14:59:02,578 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 16 states and 19 transitions. Complement of second has 5 states. [2019-12-07 14:59:02,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:59:02,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:59:02,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-12-07 14:59:02,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2019-12-07 14:59:02,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:59:02,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 13 letters. Loop has 3 letters. [2019-12-07 14:59:02,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:59:02,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 6 letters. [2019-12-07 14:59:02,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:59:02,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-12-07 14:59:02,579 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:59:02,580 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2019-12-07 14:59:02,580 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 14:59:02,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 14:59:02,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 14:59:02,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:59:02,580 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:59:02,580 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:59:02,580 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:59:02,580 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 14:59:02,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:59:02,580 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:59:02,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 14:59:02,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:59:02 BoogieIcfgContainer [2019-12-07 14:59:02,584 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:59:02,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:59:02,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:59:02,584 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:59:02,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:58:59" (3/4) ... [2019-12-07 14:59:02,587 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:59:02,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:59:02,588 INFO L168 Benchmark]: Toolchain (without parser) took 3327.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 944.8 MB in the beginning and 984.4 MB in the end (delta: -39.7 MB). Peak memory consumption was 118.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:59:02,588 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:59:02,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -142.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:59:02,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:59:02,589 INFO L168 Benchmark]: Boogie Preprocessor took 17.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:59:02,589 INFO L168 Benchmark]: RCFGBuilder took 184.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:59:02,590 INFO L168 Benchmark]: BuchiAutomizer took 2793.50 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 984.4 MB in the end (delta: 74.7 MB). Peak memory consumption was 135.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:59:02,590 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 1.2 GB. Free memory is still 984.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:59:02,593 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -142.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 184.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2793.50 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 984.4 MB in the end (delta: 74.7 MB). Peak memory consumption was 135.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 ms. Allocated memory is still 1.2 GB. Free memory is still 984.4 MB. There was no memory consumed. Max. memory is 11.5 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 4 terminating modules (1 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 -2 * s + 3 and consists of 7 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * s and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 33 SDtfs, 57 SDslu, 41 SDs, 0 SdLazy, 70 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital118 mio100 ax115 hnf99 lsp81 ukn84 mio100 lsp56 div100 bol100 ite100 ukn100 eq176 hnf89 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 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...