./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrstr-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrstr-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/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 bbb28681f649db641abcf0a1b656085d04f9cc91 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.IncrementalPlicationChecker@14ddf909 --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:07:59,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:07:59,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:07:59,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:07:59,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:07:59,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:07:59,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:07:59,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:07:59,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:07:59,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:07:59,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:07:59,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:07:59,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:07:59,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:07:59,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:07:59,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:07:59,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:07:59,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:07:59,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:07:59,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:07:59,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:07:59,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:07:59,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:07:59,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:07:59,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:07:59,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:07:59,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:07:59,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:07:59,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:07:59,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:07:59,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:07:59,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:07:59,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:07:59,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:07:59,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:07:59,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:07:59,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:07:59,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:07:59,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:07:59,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:07:59,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:07:59,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:07:59,753 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:07:59,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:07:59,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:07:59,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:07:59,754 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:07:59,754 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:07:59,754 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:07:59,754 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:07:59,755 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:07:59,755 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:07:59,755 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:07:59,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:07:59,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:07:59,755 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:07:59,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:07:59,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:07:59,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:07:59,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:07:59,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:07:59,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:07:59,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:07:59,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:07:59,756 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:07:59,756 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:07:59,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:07:59,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:07:59,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:07:59,757 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:07:59,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:07:59,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:07:59,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:07:59,757 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:07:59,758 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:07:59,758 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_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/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 -> bbb28681f649db641abcf0a1b656085d04f9cc91 [2019-12-07 18:07:59,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:07:59,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:07:59,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:07:59,871 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:07:59,872 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:07:59,872 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrstr-alloca-2.i [2019-12-07 18:07:59,913 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/data/10c048bfb/f02faef286084feeb7a6bc8de2b11bbb/FLAG1057792f6 [2019-12-07 18:08:00,368 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:08:00,369 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/sv-benchmarks/c/array-memsafety/openbsd_cstrstr-alloca-2.i [2019-12-07 18:08:00,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/data/10c048bfb/f02faef286084feeb7a6bc8de2b11bbb/FLAG1057792f6 [2019-12-07 18:08:00,894 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/data/10c048bfb/f02faef286084feeb7a6bc8de2b11bbb [2019-12-07 18:08:00,897 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:08:00,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:08:00,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:08:00,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:08:00,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:08:00,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:08:00" (1/1) ... [2019-12-07 18:08:00,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bc6ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:00, skipping insertion in model container [2019-12-07 18:08:00,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:08:00" (1/1) ... [2019-12-07 18:08:00,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:08:00,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:08:01,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:08:01,161 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:08:01,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:08:01,234 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:08:01,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01 WrapperNode [2019-12-07 18:08:01,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:08:01,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:08:01,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:08:01,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:08:01,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... [2019-12-07 18:08:01,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... [2019-12-07 18:08:01,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:08:01,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:08:01,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:08:01,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:08:01,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... [2019-12-07 18:08:01,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... [2019-12-07 18:08:01,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... [2019-12-07 18:08:01,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... [2019-12-07 18:08:01,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... [2019-12-07 18:08:01,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... [2019-12-07 18:08:01,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... [2019-12-07 18:08:01,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:08:01,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:08:01,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:08:01,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:08:01,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:08:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:08:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:08:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:08:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:08:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:08:01,538 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:08:01,539 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 18:08:01,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:08:01 BoogieIcfgContainer [2019-12-07 18:08:01,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:08:01,540 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:08:01,540 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:08:01,542 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:08:01,543 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:08:01,543 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:08:00" (1/3) ... [2019-12-07 18:08:01,543 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@508d90d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:08:01, skipping insertion in model container [2019-12-07 18:08:01,543 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:08:01,543 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:08:01" (2/3) ... [2019-12-07 18:08:01,544 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@508d90d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:08:01, skipping insertion in model container [2019-12-07 18:08:01,544 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:08:01,544 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:08:01" (3/3) ... [2019-12-07 18:08:01,545 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrstr-alloca-2.i [2019-12-07 18:08:01,572 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:08:01,572 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:08:01,572 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:08:01,572 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:08:01,572 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:08:01,572 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:08:01,572 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:08:01,573 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:08:01,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states. [2019-12-07 18:08:01,596 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 21 [2019-12-07 18:08:01,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:08:01,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:08:01,601 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 18:08:01,601 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:08:01,601 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:08:01,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states. [2019-12-07 18:08:01,603 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 21 [2019-12-07 18:08:01,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:08:01,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:08:01,603 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 18:08:01,603 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:08:01,608 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 4#L555true assume !(main_~length1~0 < 1); 28#L555-2true assume !(main_~length2~0 < 1); 19#L558-1true call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 35#L564-3true [2019-12-07 18:08:01,608 INFO L796 eck$LassoCheckResult]: Loop: 35#L564-3true assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 32#L564-2true main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 35#L564-3true [2019-12-07 18:08:01,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:01,612 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 18:08:01,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:01,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118972839] [2019-12-07 18:08:01,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:01,703 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:08:01,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:01,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-12-07 18:08:01,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:01,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353602432] [2019-12-07 18:08:01,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:01,715 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:08:01,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:01,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-12-07 18:08:01,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:01,717 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803313172] [2019-12-07 18:08:01,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:01,744 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:08:01,925 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:08:01,926 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:08:01,926 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:08:01,926 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:08:01,926 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:08:01,926 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:01,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:08:01,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:08:01,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrstr-alloca-2.i_Iteration1_Lasso [2019-12-07 18:08:01,926 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:08:01,927 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:08:01,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:01,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:01,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:01,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:01,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:01,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:01,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:01,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:01,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:01,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,244 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:08:02,247 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:02,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:02,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:02,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:02,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:02,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:02,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:02,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:02,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:02,274 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:02,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:02,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:02,282 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:02,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:02,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:02,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:08:02,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:08:02,301 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,308 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:08:02,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:08:02,311 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:02,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:02,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:02,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:08:02,327 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:08:02,329 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:02,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:02,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:02,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:02,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:08:02,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:08:02,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,358 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 [2019-12-07 18:08:02,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:02,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:02,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:02,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:02,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:08:02,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:08:02,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:08:02,408 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-12-07 18:08:02,409 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_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,417 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:08:02,420 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:08:02,420 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:08:02,420 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 18:08:02,438 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 18:08:02,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:08:02,475 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:08:02,476 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:08:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:08:02,490 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:08:02,490 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:08:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:08:02,511 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:08:02,512 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states. Second operand 3 states. [2019-12-07 18:08:02,557 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states.. Second operand 3 states. Result 99 states and 145 transitions. Complement of second has 7 states. [2019-12-07 18:08:02,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:08:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:08:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2019-12-07 18:08:02,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 18:08:02,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:08:02,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 18:08:02,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:08:02,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 18:08:02,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:08:02,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 145 transitions. [2019-12-07 18:08:02,567 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2019-12-07 18:08:02,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 32 states and 43 transitions. [2019-12-07 18:08:02,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2019-12-07 18:08:02,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-12-07 18:08:02,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2019-12-07 18:08:02,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:08:02,572 INFO L688 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-12-07 18:08:02,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2019-12-07 18:08:02,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 18:08:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 18:08:02,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2019-12-07 18:08:02,593 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-12-07 18:08:02,593 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-12-07 18:08:02,593 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:08:02,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2019-12-07 18:08:02,594 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2019-12-07 18:08:02,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:08:02,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:08:02,594 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:08:02,594 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:08:02,595 INFO L794 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 217#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 210#L555 assume !(main_~length1~0 < 1); 211#L555-2 assume !(main_~length2~0 < 1); 227#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 228#L564-3 assume !(main_~i~0 < main_~length1~0); 239#L564-4 main_~i~1 := 0; 209#L568-3 [2019-12-07 18:08:02,604 INFO L796 eck$LassoCheckResult]: Loop: 209#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 208#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 209#L568-3 [2019-12-07 18:08:02,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:02,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-12-07 18:08:02,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:02,605 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410704345] [2019-12-07 18:08:02,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Exception during sending of exit command (exit): Broken pipe [2019-12-07 18:08:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:08:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:08:02,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410704345] [2019-12-07 18:08:02,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:08:02,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:08:02,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255378868] [2019-12-07 18:08:02,649 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:08:02,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:02,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-12-07 18:08:02,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:02,649 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899435611] [2019-12-07 18:08:02,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:02,657 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:08:02,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:08:02,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:08:02,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:08:02,680 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-12-07 18:08:02,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:08:02,703 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2019-12-07 18:08:02,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:08:02,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2019-12-07 18:08:02,705 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2019-12-07 18:08:02,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 43 transitions. [2019-12-07 18:08:02,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2019-12-07 18:08:02,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-12-07 18:08:02,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 43 transitions. [2019-12-07 18:08:02,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:08:02,707 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-12-07 18:08:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 43 transitions. [2019-12-07 18:08:02,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-12-07 18:08:02,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 18:08:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2019-12-07 18:08:02,710 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-12-07 18:08:02,710 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-12-07 18:08:02,710 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:08:02,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 42 transitions. [2019-12-07 18:08:02,711 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2019-12-07 18:08:02,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:08:02,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:08:02,711 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:08:02,711 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:08:02,712 INFO L794 eck$LassoCheckResult]: Stem: 307#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 289#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, 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~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 282#L555 assume !(main_~length1~0 < 1); 283#L555-2 assume !(main_~length2~0 < 1); 300#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 301#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 309#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 310#L564-3 assume !(main_~i~0 < main_~length1~0); 311#L564-4 main_~i~1 := 0; 281#L568-3 [2019-12-07 18:08:02,712 INFO L796 eck$LassoCheckResult]: Loop: 281#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 280#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 281#L568-3 [2019-12-07 18:08:02,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:02,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1298440016, now seen corresponding path program 1 times [2019-12-07 18:08:02,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:02,712 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824239327] [2019-12-07 18:08:02,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:02,738 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:08:02,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:02,739 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 2 times [2019-12-07 18:08:02,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:02,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763123378] [2019-12-07 18:08:02,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:02,748 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:08:02,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:02,748 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626574, now seen corresponding path program 1 times [2019-12-07 18:08:02,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:02,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512821582] [2019-12-07 18:08:02,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:02,778 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:08:02,922 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-12-07 18:08:02,977 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:08:02,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:08:02,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:08:02,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:08:02,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:08:02,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:02,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:08:02,978 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:08:02,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrstr-alloca-2.i_Iteration3_Lasso [2019-12-07 18:08:02,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:08:02,978 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:08:02,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:02,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:03,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:03,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:03,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:03,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:03,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:03,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:03,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:03,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:08:03,289 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:08:03,289 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:03,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:03,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:03,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:03,295 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,298 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 [2019-12-07 18:08:03,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:03,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:03,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:03,301 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:03,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:03,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:03,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:03,307 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:03,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:03,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:03,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:03,314 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,318 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:03,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,321 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:08:03,321 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:08:03,324 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:03,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:08:03,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:08:03,335 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:03,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:08:03,343 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:08:03,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:03,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:03,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:03,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:03,355 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:03,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:08:03,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:08:03,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:08:03,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:08:03,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:08:03,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:08:03,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:08:03,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:08:03,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:08:03,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:08:03,379 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:08:03,391 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 18:08:03,391 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:08:03,393 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:08:03,395 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:08:03,396 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:08:03,396 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2019-12-07 18:08:03,411 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2019-12-07 18:08:03,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:08:03,429 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:08:03,430 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:08:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:08:03,434 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:08:03,434 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:08:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:08:03,443 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:08:03,443 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 14 Second operand 3 states. [2019-12-07 18:08:03,458 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 14. Second operand 3 states. Result 55 states and 75 transitions. Complement of second has 6 states. [2019-12-07 18:08:03,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:08:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:08:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2019-12-07 18:08:03,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 18:08:03,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:08:03,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 18:08:03,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:08:03,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 9 letters. Loop has 4 letters. [2019-12-07 18:08:03,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:08:03,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 75 transitions. [2019-12-07 18:08:03,461 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-12-07 18:08:03,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 33 states and 44 transitions. [2019-12-07 18:08:03,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2019-12-07 18:08:03,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2019-12-07 18:08:03,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2019-12-07 18:08:03,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:08:03,462 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-12-07 18:08:03,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2019-12-07 18:08:03,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-07 18:08:03,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 18:08:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2019-12-07 18:08:03,464 INFO L711 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-12-07 18:08:03,464 INFO L591 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-12-07 18:08:03,464 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:08:03,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 44 transitions. [2019-12-07 18:08:03,465 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-12-07 18:08:03,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:08:03,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:08:03,465 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:08:03,465 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:08:03,465 INFO L794 eck$LassoCheckResult]: Stem: 479#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 461#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, 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~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 453#L555 assume !(main_~length1~0 < 1); 454#L555-2 assume !(main_~length2~0 < 1); 471#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 472#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 481#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 482#L564-3 assume !(main_~i~0 < main_~length1~0); 483#L564-4 main_~i~1 := 0; 457#L568-3 assume !(main_~i~1 < main_~length2~0); 458#L568-4 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);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 478#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 469#L518-4 [2019-12-07 18:08:03,465 INFO L796 eck$LassoCheckResult]: Loop: 469#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 474#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 468#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 469#L518-4 [2019-12-07 18:08:03,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:03,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1351083894, now seen corresponding path program 1 times [2019-12-07 18:08:03,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:03,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220309501] [2019-12-07 18:08:03,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:08:03,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:08:03,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220309501] [2019-12-07 18:08:03,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:08:03,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:08:03,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123188519] [2019-12-07 18:08:03,493 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:08:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:03,494 INFO L82 PathProgramCache]: Analyzing trace with hash 79603, now seen corresponding path program 1 times [2019-12-07 18:08:03,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:03,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915133075] [2019-12-07 18:08:03,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:03,500 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:08:03,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:08:03,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:08:03,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:08:03,522 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-12-07 18:08:03,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:08:03,537 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2019-12-07 18:08:03,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:08:03,538 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2019-12-07 18:08:03,539 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-12-07 18:08:03,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 44 transitions. [2019-12-07 18:08:03,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2019-12-07 18:08:03,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2019-12-07 18:08:03,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 44 transitions. [2019-12-07 18:08:03,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:08:03,541 INFO L688 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-12-07 18:08:03,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 44 transitions. [2019-12-07 18:08:03,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2019-12-07 18:08:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 18:08:03,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-12-07 18:08:03,543 INFO L711 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-12-07 18:08:03,543 INFO L591 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-12-07 18:08:03,543 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 18:08:03,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 43 transitions. [2019-12-07 18:08:03,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-12-07 18:08:03,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:08:03,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:08:03,545 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:08:03,545 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:08:03,545 INFO L794 eck$LassoCheckResult]: Stem: 553#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 535#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, 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~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 527#L555 assume !(main_~length1~0 < 1); 528#L555-2 assume !(main_~length2~0 < 1); 546#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 547#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 555#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 556#L564-3 assume !(main_~i~0 < main_~length1~0); 557#L564-4 main_~i~1 := 0; 533#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 525#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 526#L568-3 assume !(main_~i~1 < main_~length2~0); 534#L568-4 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);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 552#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 543#L518-4 [2019-12-07 18:08:03,545 INFO L796 eck$LassoCheckResult]: Loop: 543#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 548#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 542#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 543#L518-4 [2019-12-07 18:08:03,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:03,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1313217428, now seen corresponding path program 1 times [2019-12-07 18:08:03,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:03,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419381845] [2019-12-07 18:08:03,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:08:03,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:08:03,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419381845] [2019-12-07 18:08:03,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716273824] [2019-12-07 18:08:03,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c64d1bd-6ad6-4dec-8e0a-80ebd5be925b/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:08:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:08:03,684 INFO L264 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjunts are in the unsatisfiable core [2019-12-07 18:08:03,685 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:08:03,750 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2019-12-07 18:08:03,758 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:08:03,758 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2019-12-07 18:08:03,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:08:03,763 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 18:08:03,763 INFO L430 ElimStorePlain]: Different costs {0=[v_arrayElimCell_1], 1=[v_arrayElimCell_2]} [2019-12-07 18:08:03,766 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.IncrementalPlicationChecker@14ddf909 [2019-12-07 18:08:03,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:08:03,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-12-07 18:08:03,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934001680] [2019-12-07 18:08:03,767 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:08:03,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:08:03,767 INFO L82 PathProgramCache]: Analyzing trace with hash 79603, now seen corresponding path program 2 times [2019-12-07 18:08:03,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:08:03,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539697322] [2019-12-07 18:08:03,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:08:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:08:03,774 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:08:03,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:08:03,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:08:03,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:08:03,795 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. cyclomatic complexity: 14 Second operand 8 states. [2019-12-07 18:08:03,795 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.IncrementalPlicationChecker@14ddf909 at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.lock(ManagedScript.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:354) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:127) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:60) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:62) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineFinite(BuchiCegarLoop.java:958) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:532) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-12-07 18:08:03,798 INFO L168 Benchmark]: Toolchain (without parser) took 2900.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -200.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:08:03,798 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:08:03,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -138.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:08:03,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:08:03,799 INFO L168 Benchmark]: Boogie Preprocessor took 22.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:08:03,799 INFO L168 Benchmark]: RCFGBuilder took 248.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:08:03,800 INFO L168 Benchmark]: BuchiAutomizer took 2256.71 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -100.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:08:03,802 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 336.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -138.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 248.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2256.71 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -100.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.IncrementalPlicationChecker@14ddf909 de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.IncrementalPlicationChecker@14ddf909: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.lock(ManagedScript.java:83) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...