./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/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 4a8b6acf5c3e1a62f919c5785e272fd1a6b568e6 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:46:43,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:46:43,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:46:43,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:46:43,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:46:43,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:46:43,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:46:43,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:46:43,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:46:43,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:46:43,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:46:43,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:46:43,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:46:43,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:46:43,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:46:43,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:46:43,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:46:43,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:46:43,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:46:43,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:46:43,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:46:43,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:46:43,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:46:43,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:46:43,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:46:43,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:46:43,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:46:43,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:46:43,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:46:43,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:46:43,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:46:43,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:46:43,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:46:43,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:46:43,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:46:43,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:46:43,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:46:43,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:46:43,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:46:43,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:46:43,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:46:43,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 11:46:43,060 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:46:43,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:46:43,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:46:43,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:46:43,061 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:46:43,061 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 11:46:43,062 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 11:46:43,062 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 11:46:43,062 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 11:46:43,062 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 11:46:43,062 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 11:46:43,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:46:43,063 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:46:43,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:46:43,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:46:43,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 11:46:43,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 11:46:43,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 11:46:43,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:46:43,064 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 11:46:43,064 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:46:43,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 11:46:43,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:46:43,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:46:43,065 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 11:46:43,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:46:43,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:46:43,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:46:43,066 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 11:46:43,066 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 11:46:43,067 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_7b953931-3ebe-4360-b503-b5e4c20c3714/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 -> 4a8b6acf5c3e1a62f919c5785e272fd1a6b568e6 [2019-12-07 11:46:43,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:46:43,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:46:43,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:46:43,183 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:46:43,183 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:46:43,184 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i [2019-12-07 11:46:43,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/data/210f0b7c5/9ece88b6f2354472a14b9dbe04bb98ab/FLAGf33b28f04 [2019-12-07 11:46:43,676 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:46:43,676 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i [2019-12-07 11:46:43,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/data/210f0b7c5/9ece88b6f2354472a14b9dbe04bb98ab/FLAGf33b28f04 [2019-12-07 11:46:43,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/data/210f0b7c5/9ece88b6f2354472a14b9dbe04bb98ab [2019-12-07 11:46:43,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:46:43,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:46:43,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:46:43,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:46:43,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:46:43,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:46:43" (1/1) ... [2019-12-07 11:46:43,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227d51b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:43, skipping insertion in model container [2019-12-07 11:46:43,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:46:43" (1/1) ... [2019-12-07 11:46:43,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:46:43,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:46:43,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:46:43,968 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:46:43,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:46:44,035 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:46:44,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44 WrapperNode [2019-12-07 11:46:44,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:46:44,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:46:44,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:46:44,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:46:44,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... [2019-12-07 11:46:44,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... [2019-12-07 11:46:44,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:46:44,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:46:44,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:46:44,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:46:44,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... [2019-12-07 11:46:44,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... [2019-12-07 11:46:44,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... [2019-12-07 11:46:44,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... [2019-12-07 11:46:44,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... [2019-12-07 11:46:44,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... [2019-12-07 11:46:44,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... [2019-12-07 11:46:44,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:46:44,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:46:44,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:46:44,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:46:44,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:46:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:46:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:46:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:46:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:46:44,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:46:44,235 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:46:44,235 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 11:46:44,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:46:44 BoogieIcfgContainer [2019-12-07 11:46:44,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:46:44,237 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 11:46:44,237 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 11:46:44,239 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 11:46:44,240 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:46:44,240 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 11:46:43" (1/3) ... [2019-12-07 11:46:44,240 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@256c0aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:46:44, skipping insertion in model container [2019-12-07 11:46:44,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:46:44,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:44" (2/3) ... [2019-12-07 11:46:44,241 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@256c0aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:46:44, skipping insertion in model container [2019-12-07 11:46:44,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:46:44,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:46:44" (3/3) ... [2019-12-07 11:46:44,242 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrlen_diffterm_alloca.i [2019-12-07 11:46:44,270 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 11:46:44,270 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 11:46:44,270 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 11:46:44,270 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:46:44,270 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:46:44,270 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 11:46:44,270 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:46:44,270 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 11:46:44,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 11:46:44,292 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 11:46:44,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:46:44,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:46:44,297 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 11:46:44,297 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 11:46:44,297 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 11:46:44,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 11:46:44,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 11:46:44,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:46:44,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:46:44,299 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 11:46:44,299 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 11:46:44,304 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 12#L373true assume !(main_~length1~0 < 1); 6#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L367-3true [2019-12-07 11:46:44,304 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrlen_#t~mem205 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 4#L367-1true assume !!(49 != 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 [2019-12-07 11:46:44,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:46:44,309 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-12-07 11:46:44,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:46:44,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778465271] [2019-12-07 11:46:44,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:46:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:46:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:46:44,404 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:46:44,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:46:44,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2019-12-07 11:46:44,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:46:44,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742729667] [2019-12-07 11:46:44,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:46:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:46:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:46:44,414 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:46:44,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:46:44,415 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2019-12-07 11:46:44,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:46:44,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732762428] [2019-12-07 11:46:44,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:46:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:46:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:46:44,444 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:46:44,591 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-12-07 11:46:44,639 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:46:44,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:46:44,640 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:46:44,640 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:46:44,640 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 11:46:44,640 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:44,640 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:46:44,640 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:46:44,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen_diffterm_alloca.i_Iteration1_Lasso [2019-12-07 11:46:44,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:46:44,640 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:46:44,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:46:44,975 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:46:44,979 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:44,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:46:44,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:46:44,985 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:46:44,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:46:44,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:46:44,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:46:44,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:46:44,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:46:44,989 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:44,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:46:44,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:46:44,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:46:44,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:46:44,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:46:44,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:46:44,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:46:45,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:45,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:46:45,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:46:45,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:46:45,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:46:45,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:46:45,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:46:45,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:46:45,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:46:45,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:45,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:46:45,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:46:45,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:46:45,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:46:45,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:46:45,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:46:45,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:46:45,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:45,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:46:45,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:46:45,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:46:45,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:46:45,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:46:45,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:46:45,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:46:45,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:46:45,025 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:45,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:46:45,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:46:45,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:46:45,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:46:45,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:46:45,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:46:45,037 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:46:45,046 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:45,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:46:45,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:46:45,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:46:45,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:46:45,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:46:45,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:46:45,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:46:45,056 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:45,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:46:45,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:46:45,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:46:45,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:46:45,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:46:45,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:46:45,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:46:45,079 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 11:46:45,106 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-12-07 11:46:45,106 INFO L444 ModelExtractionUtils]: 16 out of 28 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b953931-3ebe-4360-b503-b5e4c20c3714/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:46:45,114 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 11:46:45,117 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 11:46:45,118 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 11:46:45,118 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc208.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc208.base)_1 Supporting invariants [] [2019-12-07 11:46:45,133 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-12-07 11:46:45,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 11:46:45,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:46:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:46:45,191 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 11:46:45,192 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:46:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:46:45,207 WARN L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 11:46:45,207 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:46:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:46:45,232 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 11:46:45,233 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-12-07 11:46:45,287 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 20 states and 23 transitions. Complement of second has 6 states. [2019-12-07 11:46:45,287 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 [2019-12-07 11:46:45,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 11:46:45,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-12-07 11:46:45,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 11:46:45,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:46:45,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 11:46:45,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:46:45,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2019-12-07 11:46:45,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:46:45,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2019-12-07 11:46:45,293 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 11:46:45,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2019-12-07 11:46:45,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 11:46:45,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 11:46:45,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 11:46:45,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:46:45,297 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:46:45,297 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:46:45,297 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:46:45,297 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 11:46:45,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:46:45,297 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 11:46:45,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 11:46:45,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 11:46:45 BoogieIcfgContainer [2019-12-07 11:46:45,302 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 11:46:45,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:46:45,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:46:45,302 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:46:45,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:46:44" (3/4) ... [2019-12-07 11:46:45,305 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:46:45,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:46:45,307 INFO L168 Benchmark]: Toolchain (without parser) took 1612.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 943.5 MB in the beginning and 871.8 MB in the end (delta: 71.7 MB). Peak memory consumption was 190.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:45,307 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:46:45,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:45,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:46:45,308 INFO L168 Benchmark]: Boogie Preprocessor took 16.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:45,309 INFO L168 Benchmark]: RCFGBuilder took 156.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:45,309 INFO L168 Benchmark]: BuchiAutomizer took 1065.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 871.8 MB in the end (delta: 204.0 MB). Peak memory consumption was 204.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:45,309 INFO L168 Benchmark]: Witness Printer took 3.26 ms. Allocated memory is still 1.1 GB. Free memory is still 871.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:46:45,311 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 156.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1065.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 871.8 MB in the end (delta: 204.0 MB). Peak memory consumption was 204.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.26 ms. Allocated memory is still 1.1 GB. Free memory is still 871.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 + unknown-#length-unknown[__builtin_alloca(length1 * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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: 6 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital113 mio100 ax100 hnf99 lsp94 ukn91 mio100 lsp46 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms 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...