./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcat_mixed_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcat_mixed_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/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 64bit --witnessprinter.graph.data.programhash da8216583f63c00b6a47f47712e26111f4383b57 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:35:28,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:35:28,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:35:28,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:35:28,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:35:28,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:35:28,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:35:28,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:35:28,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:35:28,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:35:28,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:35:28,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:35:28,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:35:28,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:35:28,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:35:28,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:35:28,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:35:28,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:35:28,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:35:28,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:35:28,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:35:28,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:35:28,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:35:28,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:35:28,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:35:28,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:35:28,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:35:28,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:35:28,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:35:28,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:35:28,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:35:28,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:35:28,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:35:28,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:35:28,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:35:28,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:35:28,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:35:28,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:35:28,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:35:28,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:35:28,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:35:28,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 23:35:28,088 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:35:28,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:35:28,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:35:28,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:35:28,090 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:35:28,091 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 23:35:28,091 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 23:35:28,091 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 23:35:28,091 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 23:35:28,092 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 23:35:28,092 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 23:35:28,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:35:28,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:35:28,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:35:28,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:35:28,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 23:35:28,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 23:35:28,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 23:35:28,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:35:28,094 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 23:35:28,094 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:35:28,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 23:35:28,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:35:28,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:35:28,095 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 23:35:28,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:35:28,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:35:28,096 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 23:35:28,097 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 23:35:28,097 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_f2045bcb-e14d-4a36-97e5-cb220b207f63/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da8216583f63c00b6a47f47712e26111f4383b57 [2019-11-15 23:35:28,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:35:28,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:35:28,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:35:28,142 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:35:28,142 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:35:28,143 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrcat_mixed_alloca.i [2019-11-15 23:35:28,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/data/bc6cf4d22/7d83d15904c7416aaea32b3515aa7be0/FLAG4e077a67d [2019-11-15 23:35:28,651 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:35:28,652 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/sv-benchmarks/c/termination-15/cstrcat_mixed_alloca.i [2019-11-15 23:35:28,665 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/data/bc6cf4d22/7d83d15904c7416aaea32b3515aa7be0/FLAG4e077a67d [2019-11-15 23:35:28,929 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/data/bc6cf4d22/7d83d15904c7416aaea32b3515aa7be0 [2019-11-15 23:35:28,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:35:28,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:35:28,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:35:28,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:35:28,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:35:28,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:35:28" (1/1) ... [2019-11-15 23:35:28,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fc0ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:28, skipping insertion in model container [2019-11-15 23:35:28,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:35:28" (1/1) ... [2019-11-15 23:35:28,947 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:35:28,977 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:35:29,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:35:29,324 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:35:29,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:35:29,450 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:35:29,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29 WrapperNode [2019-11-15 23:35:29,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:35:29,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:35:29,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:35:29,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:35:29,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... [2019-11-15 23:35:29,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... [2019-11-15 23:35:29,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:35:29,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:35:29,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:35:29,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:35:29,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... [2019-11-15 23:35:29,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... [2019-11-15 23:35:29,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... [2019-11-15 23:35:29,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... [2019-11-15 23:35:29,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... [2019-11-15 23:35:29,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... [2019-11-15 23:35:29,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... [2019-11-15 23:35:29,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:35:29,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:35:29,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:35:29,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:35:29,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2045bcb-e14d-4a36-97e5-cb220b207f63/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:35:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:35:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:35:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:35:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:35:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:35:29,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:35:29,851 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:35:29,851 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-15 23:35:29,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:35:29 BoogieIcfgContainer [2019-11-15 23:35:29,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:35:29,853 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 23:35:29,853 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 23:35:29,856 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 23:35:29,857 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:35:29,857 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 11:35:28" (1/3) ... [2019-11-15 23:35:29,858 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3199106f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:35:29, skipping insertion in model container [2019-11-15 23:35:29,858 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:35:29,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:35:29" (2/3) ... [2019-11-15 23:35:29,858 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3199106f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:35:29, skipping insertion in model container [2019-11-15 23:35:29,859 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:35:29,859 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:35:29" (3/3) ... [2019-11-15 23:35:29,860 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcat_mixed_alloca.i [2019-11-15 23:35:29,938 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 23:35:29,939 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 23:35:29,939 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 23:35:29,939 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:35:29,939 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:35:29,939 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 23:35:29,940 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:35:29,940 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 23:35:29,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-15 23:35:29,973 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-15 23:35:29,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:35:29,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:35:29,982 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 23:35:29,982 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:35:29,982 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 23:35:29,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-15 23:35:29,985 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-15 23:35:29,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:35:29,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:35:29,986 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 23:35:29,986 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:35:29,992 INFO L791 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet210, main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet210;havoc main_#t~nondet210;main_~length2~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~length3~0 := main_#t~nondet212;havoc main_#t~nondet212; 3#L377true assume !(main_~length1~0 < 1); 6#L377-2true assume !(main_~length2~0 < 2); 15#L380-1true assume !(main_~length3~0 < 1); 10#L383-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset, cstrcat_#t~mem205, cstrcat_#t~post207.base, cstrcat_#t~post207.offset, cstrcat_#t~post208.base, cstrcat_#t~post208.offset, cstrcat_#t~mem209, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 7#L367-3true [2019-11-15 23:35:29,992 INFO L793 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrcat_#t~mem205 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 4#L367-1true assume !!(0 != cstrcat_#t~mem205);havoc cstrcat_#t~mem205;cstrcat_#t~post206.base, cstrcat_#t~post206.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post206.base, 1 + cstrcat_#t~post206.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset; 7#L367-3true [2019-11-15 23:35:29,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:35:29,996 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-11-15 23:35:30,002 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:35:30,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518308258] [2019-11-15 23:35:30,003 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:35:30,003 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:35:30,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:35:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:35:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:35:30,148 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:35:30,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:35:30,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2019-11-15 23:35:30,149 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:35:30,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951265888] [2019-11-15 23:35:30,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:35:30,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:35:30,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:35:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:35:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:35:30,164 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:35:30,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:35:30,166 INFO L82 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2019-11-15 23:35:30,166 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:35:30,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229645199] [2019-11-15 23:35:30,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:35:30,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:35:30,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:35:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:35:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:35:30,269 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:35:30,855 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2019-11-15 23:35:31,026 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-11-15 23:35:31,038 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:35:31,038 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:35:31,039 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:35:31,039 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:35:31,039 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:35:31,039 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:35:31,039 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:35:31,039 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:35:31,040 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrcat_mixed_alloca.i_Iteration1_Lasso [2019-11-15 23:35:31,040 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:35:31,040 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:35:31,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,445 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-11-15 23:35:31,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:31,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:35:32,500 WARN L191 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-11-15 23:35:32,574 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:35:32,579 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:35:32,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:35:32,583 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:35:32,583 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:35:32,584 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:35:32,584 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:35:32,584 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:35:32,586 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:35:32,586 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:35:32,588 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:35:32,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:35:32,589 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:35:32,590 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:35:32,590 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:35:32,590 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:35:32,592 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:35:32,593 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:35:32,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:35:32,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:35:32,614 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:35:32,615 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:35:32,615 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:35:32,615 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:35:32,615 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:35:32,616 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:35:32,616 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:35:32,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:35:32,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:35:32,618 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:35:32,618 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:35:32,619 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:35:32,619 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:35:32,619 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:35:32,619 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:35:32,620 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:35:32,620 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:35:32,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:35:32,621 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:35:32,621 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:35:32,622 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:35:32,622 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:35:32,623 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:35:32,624 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:35:32,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:35:32,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:35:32,630 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:35:32,630 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:35:32,630 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:35:32,630 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:35:32,632 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:35:32,632 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:35:32,639 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:35:32,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:35:32,643 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:35:32,643 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:35:32,643 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:35:32,643 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:35:32,646 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:35:32,653 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:35:32,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:35:32,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:35:32,672 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:35:32,672 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:35:32,673 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:35:32,673 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:35:32,681 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:35:32,681 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:35:32,769 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:35:32,816 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 23:35:32,829 INFO L444 ModelExtractionUtils]: 36 out of 40 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 23:35:32,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:35:32,832 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-15 23:35:32,833 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:35:32,834 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1 - 1*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2019-11-15 23:35:32,858 INFO L297 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2019-11-15 23:35:32,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-15 23:35:32,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:35:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:35:32,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:35:32,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:35:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:35:32,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 23:35:32,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:35:32,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:35:32,967 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 23:35:32,968 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-11-15 23:35:33,012 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 45 transitions. Complement of second has 7 states. [2019-11-15 23:35:33,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 23:35:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 23:35:33,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2019-11-15 23:35:33,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-15 23:35:33,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:35:33,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-15 23:35:33,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:35:33,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-15 23:35:33,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:35:33,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2019-11-15 23:35:33,022 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:35:33,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-11-15 23:35:33,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 23:35:33,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 23:35:33,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 23:35:33,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:35:33,027 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:35:33,027 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:35:33,027 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:35:33,028 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 23:35:33,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:35:33,028 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:35:33,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 23:35:33,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 11:35:33 BoogieIcfgContainer [2019-11-15 23:35:33,034 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 23:35:33,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:35:33,034 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:35:33,035 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:35:33,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:35:29" (3/4) ... [2019-11-15 23:35:33,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:35:33,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:35:33,040 INFO L168 Benchmark]: Toolchain (without parser) took 4107.41 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 240.1 MB). Free memory was 935.7 MB in the beginning and 1.2 GB in the end (delta: -224.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:35:33,040 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:35:33,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 935.7 MB in the beginning and 1.2 GB in the end (delta: -222.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:35:33,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:35:33,042 INFO L168 Benchmark]: Boogie Preprocessor took 38.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:35:33,042 INFO L168 Benchmark]: RCFGBuilder took 286.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:35:33,043 INFO L168 Benchmark]: BuchiAutomizer took 3181.28 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -29.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:35:33,044 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:35:33,046 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 518.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 935.7 MB in the beginning and 1.2 GB in the end (delta: -222.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 286.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3181.28 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -29.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.13 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 18 SDslu, 13 SDs, 0 SdLazy, 4 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital202 mio100 ax100 hnf99 lsp97 ukn80 mio100 lsp46 div100 bol100 ite100 ukn100 eq181 hnf89 smp100 dnf211 smp97 tf100 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...