./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 df3db790fa8159689a8da2e25598b93c123cddf7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 07:32:11,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:32:11,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:32:11,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:32:11,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:32:11,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:32:11,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:32:11,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:32:11,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:32:11,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:32:11,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:32:11,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:32:11,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:32:11,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:32:11,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:32:11,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:32:11,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:32:11,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:32:11,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:32:11,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:32:11,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:32:11,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:32:11,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:32:11,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:32:11,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:32:11,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:32:11,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:32:11,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:32:11,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:32:11,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:32:11,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:32:11,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:32:11,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:32:11,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:32:11,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:32:11,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:32:11,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:32:11,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:32:11,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:32:11,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:32:11,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:32:11,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 07:32:11,660 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:32:11,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:32:11,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:32:11,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:32:11,664 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:32:11,664 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 07:32:11,664 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 07:32:11,664 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 07:32:11,664 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 07:32:11,665 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 07:32:11,666 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 07:32:11,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:32:11,666 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:32:11,666 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 07:32:11,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:32:11,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:32:11,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:32:11,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 07:32:11,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 07:32:11,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 07:32:11,668 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:32:11,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:32:11,668 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 07:32:11,668 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:32:11,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 07:32:11,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:32:11,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:32:11,669 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 07:32:11,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:32:11,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:32:11,670 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 07:32:11,671 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 07:32:11,671 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_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 -> df3db790fa8159689a8da2e25598b93c123cddf7 [2019-11-20 07:32:11,813 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:32:11,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:32:11,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:32:11,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:32:11,841 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:32:11,842 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i [2019-11-20 07:32:11,902 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/data/015937242/33b56e78aca54355a04a39de2d2f57b3/FLAG9b6d3c400 [2019-11-20 07:32:12,387 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:32:12,388 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i [2019-11-20 07:32:12,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/data/015937242/33b56e78aca54355a04a39de2d2f57b3/FLAG9b6d3c400 [2019-11-20 07:32:12,911 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/data/015937242/33b56e78aca54355a04a39de2d2f57b3 [2019-11-20 07:32:12,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:32:12,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:32:12,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:32:12,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:32:12,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:32:12,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:32:12" (1/1) ... [2019-11-20 07:32:12,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be8a722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:12, skipping insertion in model container [2019-11-20 07:32:12,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:32:12" (1/1) ... [2019-11-20 07:32:12,934 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:32:12,971 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:32:13,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:32:13,365 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:32:13,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:32:13,477 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:32:13,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13 WrapperNode [2019-11-20 07:32:13,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:32:13,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:32:13,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:32:13,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:32:13,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... [2019-11-20 07:32:13,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... [2019-11-20 07:32:13,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:32:13,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:32:13,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:32:13,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:32:13,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... [2019-11-20 07:32:13,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... [2019-11-20 07:32:13,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... [2019-11-20 07:32:13,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... [2019-11-20 07:32:13,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... [2019-11-20 07:32:13,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... [2019-11-20 07:32:13,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... [2019-11-20 07:32:13,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:32:13,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:32:13,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:32:13,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:32:13,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 [2019-11-20 07:32:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 07:32:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 07:32:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 07:32:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 07:32:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:32:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:32:13,990 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:32:13,990 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 07:32:13,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:32:13 BoogieIcfgContainer [2019-11-20 07:32:13,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:32:13,992 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 07:32:13,992 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 07:32:13,995 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 07:32:13,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 07:32:13,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:32:12" (1/3) ... [2019-11-20 07:32:13,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59bcb02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:32:13, skipping insertion in model container [2019-11-20 07:32:13,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 07:32:13,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:32:13" (2/3) ... [2019-11-20 07:32:13,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59bcb02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:32:13, skipping insertion in model container [2019-11-20 07:32:13,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 07:32:13,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:32:13" (3/3) ... [2019-11-20 07:32:14,000 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcmp-alloca-2.i [2019-11-20 07:32:14,049 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 07:32:14,049 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 07:32:14,049 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 07:32:14,050 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:32:14,050 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:32:14,050 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 07:32:14,050 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:32:14,050 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 07:32:14,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-20 07:32:14,080 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-20 07:32:14,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:32:14,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:32:14,085 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 07:32:14,085 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 07:32:14,085 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 07:32:14,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-20 07:32:14,087 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-20 07:32:14,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:32:14,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:32:14,088 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 07:32:14,088 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 07:32:14,094 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 20#L528true assume !(main_~length1~0 < 1); 4#L528-2true assume !(main_~length2~0 < 1); 16#L531-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 7#L537-3true [2019-11-20 07:32:14,094 INFO L796 eck$LassoCheckResult]: Loop: 7#L537-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 6#L537-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 7#L537-3true [2019-11-20 07:32:14,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:14,100 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-20 07:32:14,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:14,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060545444] [2019-11-20 07:32:14,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:14,248 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:14,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:14,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-11-20 07:32:14,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:14,250 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312010388] [2019-11-20 07:32:14,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:14,267 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:14,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-11-20 07:32:14,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:14,270 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647803307] [2019-11-20 07:32:14,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:14,313 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:14,599 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-20 07:32:14,711 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-20 07:32:14,725 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:32:14,726 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:32:14,726 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:32:14,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:32:14,727 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 07:32:14,727 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:14,727 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:32:14,727 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:32:14,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcmp-alloca-2.i_Iteration1_Lasso [2019-11-20 07:32:14,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:32:14,728 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:32:14,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:14,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:15,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:15,370 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:32:15,376 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:15,394 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 [2019-11-20 07:32:15,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:15,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:15,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:15,402 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:15,421 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 [2019-11-20 07:32:15,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:15,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:15,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:15,431 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:15,441 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 [2019-11-20 07:32:15,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:15,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:15,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:15,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:15,465 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 [2019-11-20 07:32:15,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:15,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:15,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:15,475 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 [2019-11-20 07:32:15,496 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 [2019-11-20 07:32:15,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,505 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:15,505 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:15,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 [2019-11-20 07:32:15,519 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 [2019-11-20 07:32:15,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:15,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:15,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 [2019-11-20 07:32:15,553 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 [2019-11-20 07:32:15,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,559 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:15,560 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:15,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 [2019-11-20 07:32:15,576 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 [2019-11-20 07:32:15,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:15,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:15,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 [2019-11-20 07:32:15,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 07:32:15,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:15,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:15,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:15,637 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 [2019-11-20 07:32:15,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:15,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:15,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:15,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 [2019-11-20 07:32:15,652 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 [2019-11-20 07:32:15,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:15,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:15,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:15,685 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 [2019-11-20 07:32:15,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:15,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:15,700 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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 [2019-11-20 07:32:15,713 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 [2019-11-20 07:32:15,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:15,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:15,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:32:15,719 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:15,741 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 [2019-11-20 07:32:15,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:15,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:15,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:15,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:15,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:15,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:15,775 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 07:32:15,859 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2019-11-20 07:32:15,859 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:15,874 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:15,877 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 07:32:15,877 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 07:32:15,878 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 [] [2019-11-20 07:32:15,899 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-20 07:32:16,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:32:16,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:32:16,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:32:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:32:16,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:32:16,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:32:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:32:16,104 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 [2019-11-20 07:32:16,106 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 3 states. [2019-11-20 07:32:16,157 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 3 states. Result 51 states and 73 transitions. Complement of second has 7 states. [2019-11-20 07:32:16,158 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 [2019-11-20 07:32:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 07:32:16,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2019-11-20 07:32:16,162 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 07:32:16,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:32:16,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 07:32:16,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:32:16,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-20 07:32:16,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:32:16,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2019-11-20 07:32:16,169 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 07:32:16,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 15 states and 21 transitions. [2019-11-20 07:32:16,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 07:32:16,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-20 07:32:16,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2019-11-20 07:32:16,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:32:16,176 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-11-20 07:32:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2019-11-20 07:32:16,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-20 07:32:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 07:32:16,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2019-11-20 07:32:16,207 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-11-20 07:32:16,207 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-11-20 07:32:16,207 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 07:32:16,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2019-11-20 07:32:16,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 07:32:16,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:32:16,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:32:16,209 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:32:16,209 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 07:32:16,210 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 154#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 155#L528 assume !(main_~length1~0 < 1); 146#L528-2 assume !(main_~length2~0 < 1); 147#L531-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 151#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 152#L537-4 main_~i~1 := 0; 153#L542-3 [2019-11-20 07:32:16,210 INFO L796 eck$LassoCheckResult]: Loop: 153#L542-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 157#L542-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 153#L542-3 [2019-11-20 07:32:16,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:16,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-11-20 07:32:16,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:16,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882166682] [2019-11-20 07:32:16,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:16,241 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:16,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:16,242 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-11-20 07:32:16,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:16,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971356238] [2019-11-20 07:32:16,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:16,256 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:16,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2019-11-20 07:32:16,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:16,258 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474411405] [2019-11-20 07:32:16,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:16,291 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:16,491 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-11-20 07:32:16,589 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:32:16,589 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:32:16,590 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:32:16,590 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:32:16,590 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 07:32:16,590 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:16,590 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:32:16,590 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:32:16,590 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcmp-alloca-2.i_Iteration2_Lasso [2019-11-20 07:32:16,590 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:32:16,591 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:32:16,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,802 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-11-20 07:32:16,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:16,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:17,185 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:32:17,185 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,204 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 [2019-11-20 07:32:17,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:17,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:17,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,232 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 [2019-11-20 07:32:17,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:17,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:17,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,237 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,256 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 [2019-11-20 07:32:17,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,272 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,298 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 [2019-11-20 07:32:17,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:17,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:17,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,304 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,322 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 [2019-11-20 07:32:17,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,329 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,340 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 [2019-11-20 07:32:17,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:17,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:17,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,358 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 [2019-11-20 07:32:17,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:17,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:17,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,364 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,372 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 [2019-11-20 07:32:17,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,395 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 [2019-11-20 07:32:17,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,416 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 [2019-11-20 07:32:17,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:17,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:17,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,432 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 [2019-11-20 07:32:17,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,444 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,452 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 [2019-11-20 07:32:17,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,457 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,461 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,468 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 [2019-11-20 07:32:17,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,492 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 [2019-11-20 07:32:17,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,505 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,505 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,520 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 [2019-11-20 07:32:17,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:17,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:17,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/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) [2019-11-20 07:32:17,531 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 [2019-11-20 07:32:17,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:32:17,548 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 [2019-11-20 07:32:17,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:17,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:17,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:32:17,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,560 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 [2019-11-20 07:32:17,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:17,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:17,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:17,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:17,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:17,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,587 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 07:32:17,632 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2019-11-20 07:32:17,633 INFO L444 ModelExtractionUtils]: 6 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_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:32:17,637 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:17,641 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 07:32:17,641 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 07:32:17,642 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2 - 1*ULTIMATE.start_main_~length2~0 >= 0] [2019-11-20 07:32:17,668 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2019-11-20 07:32:17,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 07:32:17,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:32:17,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 07:32:17,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:32:17,797 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:32:17,798 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 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-20 07:32:17,798 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:32:17,818 INFO L567 ElimStorePlain]: treesize reduction 10, result has 61.5 percent of original size [2019-11-20 07:32:17,819 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:32:17,819 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:11, output treesize:7 [2019-11-20 07:32:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:32:17,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 07:32:17,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:32:17,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:32:17,862 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 [2019-11-20 07:32:17,862 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-20 07:32:17,923 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 21 states and 32 transitions. Complement of second has 7 states. [2019-11-20 07:32:17,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 07:32:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 07:32:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-11-20 07:32:17,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 07:32:17,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:32:17,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-20 07:32:17,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:32:17,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-20 07:32:17,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:32:17,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 32 transitions. [2019-11-20 07:32:17,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 07:32:17,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 23 transitions. [2019-11-20 07:32:17,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-20 07:32:17,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 07:32:17,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 23 transitions. [2019-11-20 07:32:17,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:32:17,929 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2019-11-20 07:32:17,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 23 transitions. [2019-11-20 07:32:17,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 07:32:17,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 07:32:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2019-11-20 07:32:17,932 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2019-11-20 07:32:17,932 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2019-11-20 07:32:17,932 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 07:32:17,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 23 transitions. [2019-11-20 07:32:17,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 07:32:17,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:32:17,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:32:17,934 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:32:17,934 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 07:32:17,935 INFO L794 eck$LassoCheckResult]: Stem: 278#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 276#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 277#L528 assume !(main_~length1~0 < 1); 268#L528-2 assume !(main_~length2~0 < 1); 269#L531-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 273#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 274#L537-4 main_~i~1 := 0; 275#L542-3 assume !(main_~i~1 < main_~length2~0 - 1); 281#L542-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset, cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset, cstrcmp_#t~mem2, cstrcmp_#t~mem3, cstrcmp_#t~mem4, cstrcmp_#t~short5, cstrcmp_#t~mem8, cstrcmp_#t~mem9, cstrcmp_#t~ite10, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset, cstrcmp_~uc1~0, cstrcmp_~uc2~0;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset;havoc cstrcmp_~uc1~0;havoc cstrcmp_~uc2~0; 270#L517-5 [2019-11-20 07:32:17,935 INFO L796 eck$LassoCheckResult]: Loop: 270#L517-5 call cstrcmp_#t~mem2 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~short5 := 0 != cstrcmp_#t~mem2; 266#L517-1 assume cstrcmp_#t~short5;call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);call cstrcmp_#t~mem4 := read~int(cstrcmp_~s2.base, cstrcmp_~s2.offset, 1);cstrcmp_#t~short5 := cstrcmp_#t~mem3 == cstrcmp_#t~mem4; 267#L517-3 assume !!cstrcmp_#t~short5;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;havoc cstrcmp_#t~mem2;havoc cstrcmp_#t~short5;cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post6.base, 1 + cstrcmp_#t~post6.offset;havoc cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset;cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post7.base, 1 + cstrcmp_#t~post7.offset;havoc cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset; 270#L517-5 [2019-11-20 07:32:17,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:17,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2019-11-20 07:32:17,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:17,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317238051] [2019-11-20 07:32:17,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:17,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:17,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:17,979 INFO L82 PathProgramCache]: Analyzing trace with hash 77559, now seen corresponding path program 1 times [2019-11-20 07:32:17,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:17,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875928649] [2019-11-20 07:32:17,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:18,001 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:18,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:18,006 INFO L82 PathProgramCache]: Analyzing trace with hash -296047742, now seen corresponding path program 1 times [2019-11-20 07:32:18,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:18,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623274473] [2019-11-20 07:32:18,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:32:18,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:32:18,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623274473] [2019-11-20 07:32:18,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:32:18,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 07:32:18,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156742446] [2019-11-20 07:32:18,422 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-20 07:32:18,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:32:18,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:32:18,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:32:18,469 INFO L87 Difference]: Start difference. First operand 16 states and 23 transitions. cyclomatic complexity: 10 Second operand 7 states. [2019-11-20 07:32:18,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:32:18,611 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2019-11-20 07:32:18,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 07:32:18,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2019-11-20 07:32:18,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 07:32:18,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 17 states and 22 transitions. [2019-11-20 07:32:18,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 07:32:18,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 07:32:18,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2019-11-20 07:32:18,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:32:18,613 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2019-11-20 07:32:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2019-11-20 07:32:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-20 07:32:18,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 07:32:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2019-11-20 07:32:18,615 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-20 07:32:18,615 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-20 07:32:18,615 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 07:32:18,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2019-11-20 07:32:18,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 07:32:18,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:32:18,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:32:18,616 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:32:18,616 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 07:32:18,616 INFO L794 eck$LassoCheckResult]: Stem: 338#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 336#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 337#L528 assume !(main_~length1~0 < 1); 328#L528-2 assume !(main_~length2~0 < 1); 329#L531-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 333#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 331#L537-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 332#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 334#L537-4 main_~i~1 := 0; 335#L542-3 assume !(main_~i~1 < main_~length2~0 - 1); 341#L542-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset, cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset, cstrcmp_#t~mem2, cstrcmp_#t~mem3, cstrcmp_#t~mem4, cstrcmp_#t~short5, cstrcmp_#t~mem8, cstrcmp_#t~mem9, cstrcmp_#t~ite10, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset, cstrcmp_~uc1~0, cstrcmp_~uc2~0;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset;havoc cstrcmp_~uc1~0;havoc cstrcmp_~uc2~0; 330#L517-5 [2019-11-20 07:32:18,617 INFO L796 eck$LassoCheckResult]: Loop: 330#L517-5 call cstrcmp_#t~mem2 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~short5 := 0 != cstrcmp_#t~mem2; 326#L517-1 assume cstrcmp_#t~short5;call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);call cstrcmp_#t~mem4 := read~int(cstrcmp_~s2.base, cstrcmp_~s2.offset, 1);cstrcmp_#t~short5 := cstrcmp_#t~mem3 == cstrcmp_#t~mem4; 327#L517-3 assume !!cstrcmp_#t~short5;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;havoc cstrcmp_#t~mem2;havoc cstrcmp_#t~short5;cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post6.base, 1 + cstrcmp_#t~post6.offset;havoc cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset;cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post7.base, 1 + cstrcmp_#t~post7.offset;havoc cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset; 330#L517-5 [2019-11-20 07:32:18,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:18,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2019-11-20 07:32:18,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:18,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247911364] [2019-11-20 07:32:18,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:18,644 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:18,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:18,645 INFO L82 PathProgramCache]: Analyzing trace with hash 77559, now seen corresponding path program 2 times [2019-11-20 07:32:18,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:18,645 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656502974] [2019-11-20 07:32:18,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:18,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:18,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:18,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1311502304, now seen corresponding path program 1 times [2019-11-20 07:32:18,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:18,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622939981] [2019-11-20 07:32:18,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:32:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 07:32:18,853 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622939981] [2019-11-20 07:32:18,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:32:18,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 07:32:18,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942332934] [2019-11-20 07:32:18,978 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-20 07:32:19,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:32:19,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 07:32:19,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:32:19,023 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 9 states. [2019-11-20 07:32:19,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:32:19,142 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-20 07:32:19,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 07:32:19,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2019-11-20 07:32:19,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 07:32:19,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 21 transitions. [2019-11-20 07:32:19,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 07:32:19,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 07:32:19,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2019-11-20 07:32:19,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:32:19,144 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-20 07:32:19,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2019-11-20 07:32:19,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-20 07:32:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 07:32:19,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-11-20 07:32:19,146 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-20 07:32:19,146 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-20 07:32:19,146 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 07:32:19,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2019-11-20 07:32:19,147 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 07:32:19,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:32:19,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:32:19,147 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:32:19,147 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 07:32:19,148 INFO L794 eck$LassoCheckResult]: Stem: 395#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 393#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 394#L528 assume !(main_~length1~0 < 1); 385#L528-2 assume !(main_~length2~0 < 1); 386#L531-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 390#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 388#L537-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 389#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 391#L537-4 main_~i~1 := 0; 392#L542-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 396#L542-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 397#L542-3 assume !(main_~i~1 < main_~length2~0 - 1); 398#L542-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset, cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset, cstrcmp_#t~mem2, cstrcmp_#t~mem3, cstrcmp_#t~mem4, cstrcmp_#t~short5, cstrcmp_#t~mem8, cstrcmp_#t~mem9, cstrcmp_#t~ite10, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset, cstrcmp_~uc1~0, cstrcmp_~uc2~0;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset;havoc cstrcmp_~uc1~0;havoc cstrcmp_~uc2~0; 387#L517-5 [2019-11-20 07:32:19,148 INFO L796 eck$LassoCheckResult]: Loop: 387#L517-5 call cstrcmp_#t~mem2 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~short5 := 0 != cstrcmp_#t~mem2; 383#L517-1 assume cstrcmp_#t~short5;call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);call cstrcmp_#t~mem4 := read~int(cstrcmp_~s2.base, cstrcmp_~s2.offset, 1);cstrcmp_#t~short5 := cstrcmp_#t~mem3 == cstrcmp_#t~mem4; 384#L517-3 assume !!cstrcmp_#t~short5;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;havoc cstrcmp_#t~mem2;havoc cstrcmp_#t~short5;cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post6.base, 1 + cstrcmp_#t~post6.offset;havoc cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset;cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post7.base, 1 + cstrcmp_#t~post7.offset;havoc cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset; 387#L517-5 [2019-11-20 07:32:19,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:19,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2019-11-20 07:32:19,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:19,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233568587] [2019-11-20 07:32:19,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:19,176 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:19,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:19,177 INFO L82 PathProgramCache]: Analyzing trace with hash 77559, now seen corresponding path program 3 times [2019-11-20 07:32:19,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:19,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963267648] [2019-11-20 07:32:19,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:19,186 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:19,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:19,187 INFO L82 PathProgramCache]: Analyzing trace with hash -718433154, now seen corresponding path program 1 times [2019-11-20 07:32:19,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:32:19,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365350375] [2019-11-20 07:32:19,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:32:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:32:19,222 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:32:19,366 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-20 07:32:19,811 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 108 [2019-11-20 07:32:19,946 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-11-20 07:32:19,960 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:32:19,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:32:19,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:32:19,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:32:19,960 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 07:32:19,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:19,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:32:19,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:32:19,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcmp-alloca-2.i_Iteration5_Lasso [2019-11-20 07:32:19,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:32:19,961 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:32:19,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:19,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:19,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:19,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:19,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,438 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-11-20 07:32:20,650 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-11-20 07:32:20,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:20,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:32:21,281 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:32:21,282 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,289 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 [2019-11-20 07:32:21,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:21,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:21,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:21,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:21,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:21,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:21,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:32:21,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:32:21,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:21,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:21,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:21,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:21,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:21,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:21,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:32:21,299 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 07:32:21,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:21,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:21,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:21,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:21,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:21,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:21,311 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:32:21,324 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 [2019-11-20 07:32:21,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:21,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:32:21,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:21,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:21,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:21,327 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:32:21,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,329 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,340 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 [2019-11-20 07:32:21,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:21,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:21,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:21,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:21,344 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:21,344 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:21,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,354 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 [2019-11-20 07:32:21,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:21,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:21,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:21,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:21,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:21,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:21,370 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:32:21,384 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 [2019-11-20 07:32:21,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:21,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:21,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:21,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:21,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:21,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:32:21,415 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 [2019-11-20 07:32:21,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:21,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:21,418 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 07:32:21,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:32:21,427 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-20 07:32:21,427 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:32:21,456 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 [2019-11-20 07:32:21,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:32:21,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:32:21,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:32:21,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:32:21,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:32:21,514 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 07:32:21,626 INFO L443 ModelExtractionUtils]: Simplification made 31 calls to the SMT solver. [2019-11-20 07:32:21,626 INFO L444 ModelExtractionUtils]: 14 out of 46 variables were initially zero. Simplification set additionally 29 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60b30d1c-d6c9-4fbc-acc6-8b7ec03c3dc8/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:32:21,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 07:32:21,632 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 07:32:21,633 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 07:32:21,633 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcmp_~s1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3) = -1*ULTIMATE.start_cstrcmp_~s1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 Supporting invariants [] [2019-11-20 07:32:21,708 INFO L297 tatePredicateManager]: 21 out of 22 supporting invariants were superfluous and have been removed [2019-11-20 07:32:21,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 07:32:21,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:32:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:32:21,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 07:32:21,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:32:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:32:21,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 07:32:21,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:32:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:32:21,779 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 [2019-11-20 07:32:21,779 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-11-20 07:32:21,821 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 19 states and 24 transitions. Complement of second has 5 states. [2019-11-20 07:32:21,822 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 [2019-11-20 07:32:21,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 07:32:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-20 07:32:21,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 13 letters. Loop has 3 letters. [2019-11-20 07:32:21,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:32:21,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 3 letters. [2019-11-20 07:32:21,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:32:21,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 13 letters. Loop has 6 letters. [2019-11-20 07:32:21,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:32:21,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2019-11-20 07:32:21,826 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 07:32:21,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2019-11-20 07:32:21,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 07:32:21,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 07:32:21,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 07:32:21,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:32:21,827 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:32:21,827 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:32:21,827 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:32:21,827 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 07:32:21,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:32:21,827 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 07:32:21,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 07:32:21,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:32:21 BoogieIcfgContainer [2019-11-20 07:32:21,832 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 07:32:21,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:32:21,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:32:21,833 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:32:21,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:32:13" (3/4) ... [2019-11-20 07:32:21,837 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 07:32:21,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:32:21,838 INFO L168 Benchmark]: Toolchain (without parser) took 8917.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 939.3 MB in the beginning and 951.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 187.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:32:21,839 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:32:21,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-20 07:32:21,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.00 ms. Allocated memory is still 1.2 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. [2019-11-20 07:32:21,841 INFO L168 Benchmark]: Boogie Preprocessor took 34.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:32:21,841 INFO L168 Benchmark]: RCFGBuilder took 426.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:32:21,842 INFO L168 Benchmark]: BuchiAutomizer took 7840.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 951.8 MB in the end (delta: 137.8 MB). Peak memory consumption was 203.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:32:21,842 INFO L168 Benchmark]: Witness Printer took 4.26 ms. Allocated memory is still 1.2 GB. Free memory is still 951.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:32:21,845 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 557.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.00 ms. Allocated memory is still 1.2 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. * Boogie Preprocessor took 34.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 426.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7840.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 951.8 MB in the end (delta: 137.8 MB). Peak memory consumption was 203.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.26 ms. Allocated memory is still 1.2 GB. Free memory is still 951.8 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 - 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 5 terminating modules (2 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 unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * s1 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.7s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 6.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 70 SDtfs, 136 SDslu, 110 SDs, 0 SdLazy, 114 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital198 mio100 ax110 hnf98 lsp84 ukn73 mio100 lsp49 div100 bol100 ite100 ukn100 eq178 hnf89 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...