./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_malloc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/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-cad4683 [2019-10-22 08:57:34,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:34,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:34,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:34,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:34,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:34,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:34,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:34,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:34,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:34,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:34,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:34,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:34,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:34,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:34,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:34,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:34,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:34,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:34,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:34,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:34,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:34,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:34,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:34,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:34,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:34,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:34,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:34,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:34,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:34,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:34,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:34,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:34,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:34,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:34,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:34,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:34,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:34,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:34,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:34,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:34,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:57:34,177 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:34,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:34,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:34,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:34,179 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:34,179 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:57:34,179 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:57:34,179 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:57:34,179 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:57:34,180 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:57:34,180 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:57:34,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:34,180 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:34,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:34,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:34,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:57:34,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:57:34,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:57:34,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:34,191 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:57:34,191 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:34,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:57:34,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:34,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:34,191 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:57:34,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:34,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:34,192 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:57:34,193 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:57:34,193 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/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/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 [2019-10-22 08:57:34,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:34,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:34,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:34,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:34,240 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:34,240 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrlen_malloc.i [2019-10-22 08:57:34,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/data/dfd9a682d/5071349ebb1b4557b1e3cb655035aa93/FLAG7462d0d08 [2019-10-22 08:57:34,743 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:34,744 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/sv-benchmarks/c/termination-15/cstrlen_malloc.i [2019-10-22 08:57:34,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/data/dfd9a682d/5071349ebb1b4557b1e3cb655035aa93/FLAG7462d0d08 [2019-10-22 08:57:34,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/bin/uautomizer/data/dfd9a682d/5071349ebb1b4557b1e3cb655035aa93 [2019-10-22 08:57:34,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:34,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:34,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:34,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:34,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:34,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:34" (1/1) ... [2019-10-22 08:57:34,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a78bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:34, skipping insertion in model container [2019-10-22 08:57:34,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:34" (1/1) ... [2019-10-22 08:57:34,786 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:34,812 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:35,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:35,173 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:35,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:35,287 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:35,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35 WrapperNode [2019-10-22 08:57:35,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:35,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:35,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:35,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:35,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:35,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:35,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:35,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:35,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:35,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:35,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:35,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:35,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9b751c78-111b-499a-abd8-55bea6145f3c/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 [2019-10-22 08:57:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:57:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:35,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:35,666 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:35,666 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:57:35,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:35 BoogieIcfgContainer [2019-10-22 08:57:35,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:35,668 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:57:35,668 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:57:35,680 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:57:35,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:35,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:57:34" (1/3) ... [2019-10-22 08:57:35,682 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53980c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:35, skipping insertion in model container [2019-10-22 08:57:35,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:35,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35" (2/3) ... [2019-10-22 08:57:35,682 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53980c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:35, skipping insertion in model container [2019-10-22 08:57:35,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:35,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:35" (3/3) ... [2019-10-22 08:57:35,684 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrlen_malloc.i [2019-10-22 08:57:35,778 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:57:35,778 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:57:35,779 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:57:35,779 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:35,780 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:35,780 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:57:35,780 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:35,780 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:57:35,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:57:35,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:35,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:35,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:35,825 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:57:35,825 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:35,825 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:57:35,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:57:35,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:35,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:35,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:35,828 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:57:35,828 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:35,835 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 13#L373true assume !(main_~length1~0 < 1); 6#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L367-3true [2019-10-22 08:57:35,836 INFO L793 eck$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 [2019-10-22 08:57:35,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:35,842 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-10-22 08:57:35,849 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:35,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538235713] [2019-10-22 08:57:35,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:35,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:35,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:35,963 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:35,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:35,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2019-10-22 08:57:35,964 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:35,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660099510] [2019-10-22 08:57:35,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:35,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:35,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:35,976 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:35,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:35,978 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2019-10-22 08:57:35,978 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:35,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579695608] [2019-10-22 08:57:35,978 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:35,978 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:35,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:36,015 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:36,264 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-10-22 08:57:36,326 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:36,327 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:36,327 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:36,327 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:36,327 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:57:36,328 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:36,328 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:36,328 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:36,328 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrlen_malloc.i_Iteration1_Lasso [2019-10-22 08:57:36,328 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:36,328 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:36,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:36,884 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:36,890 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:57:36,892 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 [2019-10-22 08:57:36,894 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,895 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:36,895 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,896 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,896 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,898 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:36,898 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:36,900 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:36,900 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 [2019-10-22 08:57:36,901 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,902 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:36,902 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,902 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,902 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,903 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:36,903 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:36,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:36,904 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 [2019-10-22 08:57:36,906 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,906 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,906 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,906 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,909 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:36,909 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:36,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:36,914 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 [2019-10-22 08:57:36,915 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,916 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:36,916 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,916 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,916 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,917 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:36,917 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:36,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:36,919 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 [2019-10-22 08:57:36,920 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,920 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,921 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,921 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,923 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:36,923 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:36,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:36,943 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 [2019-10-22 08:57:36,944 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,944 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:36,944 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,945 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,945 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,945 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:36,945 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:36,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:36,947 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 [2019-10-22 08:57:36,947 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,947 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:36,948 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,948 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,948 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,948 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:36,952 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:36,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:36,953 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 [2019-10-22 08:57:36,954 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,954 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:36,954 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,954 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,954 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,955 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:36,955 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:36,956 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:36,960 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 [2019-10-22 08:57:36,961 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,961 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,962 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,962 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,963 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:36,964 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:36,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:36,970 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 [2019-10-22 08:57:36,972 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:36,973 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:36,975 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:36,975 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:36,980 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:36,987 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:37,036 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:57:37,078 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-10-22 08:57:37,079 INFO L444 ModelExtractionUtils]: 21 out of 28 variables were initially zero. Simplification set additionally 4 variables to zero. [2019-10-22 08:57:37,081 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:57:37,082 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 08:57:37,083 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:57:37,083 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 [] [2019-10-22 08:57:37,102 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-10-22 08:57:37,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 08:57:37,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:37,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:57:37,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:37,193 WARN L254 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:57:37,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:37,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:37,229 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 [2019-10-22 08:57:37,231 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-10-22 08:57:37,289 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. [2019-10-22 08:57:37,290 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 [2019-10-22 08:57:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:57:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-10-22 08:57:37,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 08:57:37,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:37,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2019-10-22 08:57:37,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:37,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2019-10-22 08:57:37,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:37,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2019-10-22 08:57:37,299 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:57:37,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-10-22 08:57:37,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:57:37,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:57:37,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:57:37,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:57:37,304 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:37,304 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:37,304 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:37,304 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:57:37,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:37,305 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:57:37,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:57:37,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:57:37 BoogieIcfgContainer [2019-10-22 08:57:37,311 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:57:37,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:37,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:37,312 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:37,313 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:35" (3/4) ... [2019-10-22 08:57:37,316 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:57:37,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:37,318 INFO L168 Benchmark]: Toolchain (without parser) took 2552.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.9 MB in the beginning and 916.3 MB in the end (delta: 29.6 MB). Peak memory consumption was 170.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:37,318 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:37,319 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:37,320 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.06 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:37,320 INFO L168 Benchmark]: Boogie Preprocessor took 24.39 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. [2019-10-22 08:57:37,321 INFO L168 Benchmark]: RCFGBuilder took 312.08 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. [2019-10-22 08:57:37,322 INFO L168 Benchmark]: BuchiAutomizer took 1643.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.6 MB in the end (delta: 173.8 MB). Peak memory consumption was 173.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:37,322 INFO L168 Benchmark]: Witness Printer took 4.56 ms. Allocated memory is still 1.2 GB. Free memory was 921.6 MB in the beginning and 916.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:37,326 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 521.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.06 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.39 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 312.08 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 1643.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.6 MB in the end (delta: 173.8 MB). Peak memory consumption was 173.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.56 ms. Allocated memory is still 1.2 GB. Free memory was 921.6 MB in the beginning and 916.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. 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[malloc(length1 * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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: inital114 mio100 ax100 hnf99 lsp94 ukn91 mio100 lsp45 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf109 smp100 tf100 neg97 sie109 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...