./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrlen_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/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 df00388ee02e9eb4eefa9325fb06df0e14414ced ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 01:45:48,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:45:48,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:45:48,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:45:48,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:45:48,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:45:48,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:45:48,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:45:48,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:45:48,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:45:48,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:45:48,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:45:48,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:45:48,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:45:48,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:45:48,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:45:48,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:45:48,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:45:48,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:45:48,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:45:48,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:45:48,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:45:48,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:45:48,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:45:48,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:45:48,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:45:48,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:45:48,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:45:48,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:45:48,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:45:48,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:45:48,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:45:48,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:45:48,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:45:48,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:45:48,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:45:48,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:45:48,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:45:48,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:45:48,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:45:48,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:45:48,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 01:45:48,898 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:45:48,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:45:48,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:45:48,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:45:48,900 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:45:48,900 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 01:45:48,901 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 01:45:48,901 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 01:45:48,901 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 01:45:48,901 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 01:45:48,901 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 01:45:48,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:45:48,902 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 01:45:48,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:45:48,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:45:48,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 01:45:48,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 01:45:48,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 01:45:48,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:45:48,903 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 01:45:48,904 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:45:48,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 01:45:48,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:45:48,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:45:48,905 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 01:45:48,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:45:48,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:45:48,905 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 01:45:48,906 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 01:45:48,906 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_0583a8c9-111d-4919-9078-c3ee108762d3/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 -> df00388ee02e9eb4eefa9325fb06df0e14414ced [2019-11-20 01:45:49,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:45:49,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:45:49,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:45:49,056 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:45:49,057 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:45:49,057 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrlen_malloc.i [2019-11-20 01:45:49,105 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/data/9ab91fa84/6e94c9bb8382447093dae2da2108d5bc/FLAG9800ab712 [2019-11-20 01:45:49,540 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:45:49,540 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/sv-benchmarks/c/termination-15/cstrlen_malloc.i [2019-11-20 01:45:49,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/data/9ab91fa84/6e94c9bb8382447093dae2da2108d5bc/FLAG9800ab712 [2019-11-20 01:45:49,840 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/data/9ab91fa84/6e94c9bb8382447093dae2da2108d5bc [2019-11-20 01:45:49,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:45:49,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:45:49,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:45:49,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:45:49,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:45:49,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:49" (1/1) ... [2019-11-20 01:45:49,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f8157a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:49, skipping insertion in model container [2019-11-20 01:45:49,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:49" (1/1) ... [2019-11-20 01:45:49,858 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:45:49,902 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:45:50,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:45:50,247 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:45:50,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:45:50,367 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:45:50,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50 WrapperNode [2019-11-20 01:45:50,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:45:50,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:45:50,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:45:50,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:45:50,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... [2019-11-20 01:45:50,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... [2019-11-20 01:45:50,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:45:50,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:45:50,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:45:50,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:45:50,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... [2019-11-20 01:45:50,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... [2019-11-20 01:45:50,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... [2019-11-20 01:45:50,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... [2019-11-20 01:45:50,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... [2019-11-20 01:45:50,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... [2019-11-20 01:45:50,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... [2019-11-20 01:45:50,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:45:50,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:45:50,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:45:50,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:45:50,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 01:45:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:45:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 01:45:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:45:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:45:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:45:50,695 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:45:50,695 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 01:45:50,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:50 BoogieIcfgContainer [2019-11-20 01:45:50,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:45:50,697 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 01:45:50,697 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 01:45:50,700 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 01:45:50,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:45:50,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 01:45:49" (1/3) ... [2019-11-20 01:45:50,702 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c115c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:45:50, skipping insertion in model container [2019-11-20 01:45:50,702 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:45:50,703 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:50" (2/3) ... [2019-11-20 01:45:50,703 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c115c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:45:50, skipping insertion in model container [2019-11-20 01:45:50,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:45:50,703 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:50" (3/3) ... [2019-11-20 01:45:50,705 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrlen_malloc.i [2019-11-20 01:45:50,759 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 01:45:50,759 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 01:45:50,759 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 01:45:50,760 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:45:50,760 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:45:50,760 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 01:45:50,760 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:45:50,760 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 01:45:50,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-20 01:45:50,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 01:45:50,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:45:50,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:45:50,818 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 01:45:50,818 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 01:45:50,818 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 01:45:50,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-20 01:45:50,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 01:45:50,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:45:50,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:45:50,821 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 01:45:50,821 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 01:45:50,828 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 13#L373true assume !(main_~length1~0 < 1); 6#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L367-3true [2019-11-20 01:45:50,828 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrlen_#t~mem205 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 4#L367-1true assume !!(0 != cstrlen_#t~mem205);havoc cstrlen_#t~mem205;cstrlen_#t~post206.base, cstrlen_#t~post206.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post206.base, 1 + cstrlen_#t~post206.offset;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset; 7#L367-3true [2019-11-20 01:45:50,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:45:50,834 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-20 01:45:50,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:45:50,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341530626] [2019-11-20 01:45:50,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:45:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:45:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:45:50,958 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:45:50,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:45:50,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2019-11-20 01:45:50,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:45:50,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151872141] [2019-11-20 01:45:50,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:45:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:45:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:45:50,975 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:45:50,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:45:50,979 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2019-11-20 01:45:50,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:45:50,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442889497] [2019-11-20 01:45:50,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:45:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:45:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:45:51,040 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:45:51,280 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-11-20 01:45:51,368 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:45:51,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:45:51,369 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:45:51,370 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:45:51,370 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:45:51,370 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:51,370 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:45:51,370 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:45:51,370 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen_malloc.i_Iteration1_Lasso [2019-11-20 01:45:51,371 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:45:51,371 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:45:51,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,587 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-11-20 01:45:51,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:51,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:45:52,040 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 24 [2019-11-20 01:45:52,099 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:45:52,105 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/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 [2019-11-20 01:45:52,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:45:52,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:45:52,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:45:52,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:45:52,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:45:52,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:45:52,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:45:52,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:45:52,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:45:52,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:45:52,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:52,133 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:45:52,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:45:52,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:52,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:45:52,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:45:52,157 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/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 [2019-11-20 01:45:52,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:45:52,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:45:52,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:45:52,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:45:52,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:45:52,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/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) [2019-11-20 01:45:52,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:52,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:45:52,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:45:52,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:45:52,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:52,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:45:52,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:45:52,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:45:52,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:45:52,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:45:52,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/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) [2019-11-20 01:45:52,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:45:52,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:45:52,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:45:52,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:45:52,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:52,249 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:52,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:45:52,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:45:52,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:45:52,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:45:52,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:45:52,270 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:52,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:45:52,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:45:52,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:45:52,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:45:52,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/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 [2019-11-20 01:45:52,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:45:52,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:45:52,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:45:52,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:45:52,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:45:52,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:45:52,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:45:52,330 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:45:52,503 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2019-11-20 01:45:52,503 INFO L444 ModelExtractionUtils]: 6 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0583a8c9-111d-4919-9078-c3ee108762d3/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) [2019-11-20 01:45:52,530 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:45:52,533 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 01:45:52,533 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:45:52,534 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, ULTIMATE.start_main_~length1~0) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*ULTIMATE.start_main_~length1~0 Supporting invariants [1*ULTIMATE.start_main_~length1~0 - 1*v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1 >= 0] [2019-11-20 01:45:52,554 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2019-11-20 01:45:52,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:45:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:45:52,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 01:45:52,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:45:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:45:52,639 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 01:45:52,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:45:52,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:45:52,674 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 01:45:52,675 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-20 01:45:52,754 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 26 transitions. Complement of second has 5 states. [2019-11-20 01:45:52,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 01:45:52,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 01:45:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-11-20 01:45:52,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 01:45:52,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:45:52,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-20 01:45:52,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:45:52,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-20 01:45:52,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:45:52,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2019-11-20 01:45:52,769 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:45:52,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-11-20 01:45:52,773 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 01:45:52,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 01:45:52,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 01:45:52,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 01:45:52,774 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:45:52,774 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:45:52,775 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:45:52,775 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 01:45:52,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:45:52,778 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:45:52,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 01:45:52,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 01:45:52 BoogieIcfgContainer [2019-11-20 01:45:52,785 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 01:45:52,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:45:52,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:45:52,786 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:45:52,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:50" (3/4) ... [2019-11-20 01:45:52,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 01:45:52,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:45:52,793 INFO L168 Benchmark]: Toolchain (without parser) took 2948.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:45:52,794 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:45:52,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 524.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:45:52,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:45:52,796 INFO L168 Benchmark]: Boogie Preprocessor took 29.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:45:52,797 INFO L168 Benchmark]: RCFGBuilder took 239.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:45:52,801 INFO L168 Benchmark]: BuchiAutomizer took 2088.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -11.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:45:52,802 INFO L168 Benchmark]: Witness Printer took 5.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:45:52,807 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 524.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 239.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2088.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -11.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 5.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 -1 * p + length1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. 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: 9 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital117 mio100 ax100 hnf99 lsp94 ukn91 mio100 lsp44 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf116 smp93 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms 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...