./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/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 0.1.25-f470102 [2019-12-07 18:39:18,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:39:18,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:39:18,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:39:18,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:39:18,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:39:18,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:39:18,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:39:18,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:39:18,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:39:18,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:39:18,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:39:18,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:39:18,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:39:18,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:39:18,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:39:18,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:39:18,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:39:18,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:39:18,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:39:18,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:39:18,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:39:18,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:39:18,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:39:18,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:39:18,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:39:18,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:39:18,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:39:18,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:39:18,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:39:18,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:39:18,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:39:18,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:39:18,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:39:18,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:39:18,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:39:18,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:39:18,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:39:18,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:39:18,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:39:18,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:39:18,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:39:18,194 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:39:18,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:39:18,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:39:18,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:39:18,195 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:39:18,195 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:39:18,195 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:39:18,195 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:39:18,196 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:39:18,196 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:39:18,196 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:39:18,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:39:18,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:39:18,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:39:18,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:39:18,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:39:18,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:39:18,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:39:18,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:39:18,197 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:39:18,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:39:18,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:39:18,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:39:18,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:39:18,197 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:39:18,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:39:18,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:39:18,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:39:18,198 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:39:18,198 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:39:18,199 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_504e173e-e72f-4268-9577-9543d421ccad/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 [2019-12-07 18:39:18,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:39:18,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:39:18,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:39:18,311 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:39:18,312 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:39:18,312 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrlen_malloc.i [2019-12-07 18:39:18,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/data/bba1a215a/7a3486e3c74f4ca9a972ca7a5c19c533/FLAG90084d213 [2019-12-07 18:39:18,713 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:39:18,713 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/sv-benchmarks/c/termination-15/cstrlen_malloc.i [2019-12-07 18:39:18,720 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/data/bba1a215a/7a3486e3c74f4ca9a972ca7a5c19c533/FLAG90084d213 [2019-12-07 18:39:18,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/data/bba1a215a/7a3486e3c74f4ca9a972ca7a5c19c533 [2019-12-07 18:39:18,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:39:18,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:39:18,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:39:18,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:39:18,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:39:18,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:39:18" (1/1) ... [2019-12-07 18:39:18,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4afd14cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:18, skipping insertion in model container [2019-12-07 18:39:18,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:39:18" (1/1) ... [2019-12-07 18:39:18,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:39:18,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:39:18,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:39:18,998 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:39:19,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:39:19,067 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:39:19,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19 WrapperNode [2019-12-07 18:39:19,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:39:19,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:39:19,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:39:19,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:39:19,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... [2019-12-07 18:39:19,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... [2019-12-07 18:39:19,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:39:19,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:39:19,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:39:19,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:39:19,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... [2019-12-07 18:39:19,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... [2019-12-07 18:39:19,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... [2019-12-07 18:39:19,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... [2019-12-07 18:39:19,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... [2019-12-07 18:39:19,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... [2019-12-07 18:39:19,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... [2019-12-07 18:39:19,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:39:19,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:39:19,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:39:19,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:39:19,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:39:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:39:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:39:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:39:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:39:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:39:19,280 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:39:19,280 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 18:39:19,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:39:19 BoogieIcfgContainer [2019-12-07 18:39:19,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:39:19,282 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:39:19,282 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:39:19,284 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:39:19,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:39:19,285 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:39:18" (1/3) ... [2019-12-07 18:39:19,285 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47c041c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:39:19, skipping insertion in model container [2019-12-07 18:39:19,285 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:39:19,285 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:19" (2/3) ... [2019-12-07 18:39:19,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47c041c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:39:19, skipping insertion in model container [2019-12-07 18:39:19,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:39:19,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:39:19" (3/3) ... [2019-12-07 18:39:19,287 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrlen_malloc.i [2019-12-07 18:39:19,315 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:39:19,315 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:39:19,315 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:39:19,315 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:39:19,315 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:39:19,315 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:39:19,315 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:39:19,315 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:39:19,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 18:39:19,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:39:19,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:39:19,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:39:19,341 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 18:39:19,342 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:39:19,342 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:39:19,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 18:39:19,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:39:19,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:39:19,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:39:19,343 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 18:39:19,343 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:39:19,348 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 13#L373true assume !(main_~length1~0 < 1); 6#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L367-3true [2019-12-07 18:39:19,348 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrlen_#t~mem205 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 4#L367-1true assume !!(0 != cstrlen_#t~mem205);havoc cstrlen_#t~mem205;cstrlen_#t~post206.base, cstrlen_#t~post206.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post206.base, 1 + cstrlen_#t~post206.offset;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset; 7#L367-3true [2019-12-07 18:39:19,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:19,354 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-12-07 18:39:19,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:19,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606492584] [2019-12-07 18:39:19,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:19,453 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:19,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:19,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2019-12-07 18:39:19,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:19,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605642483] [2019-12-07 18:39:19,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:19,463 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:19,464 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2019-12-07 18:39:19,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:19,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876834423] [2019-12-07 18:39:19,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:19,495 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:19,645 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-12-07 18:39:19,696 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:39:19,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:39:19,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:39:19,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:39:19,696 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:39:19,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:19,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:39:19,697 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:39:19,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen_malloc.i_Iteration1_Lasso [2019-12-07 18:39:19,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:39:19,697 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:39:19,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:19,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:39:20,102 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:39:20,105 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:20,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:20,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:20,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:20,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:20,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:20,123 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:20,132 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:20,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:20,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:20,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:20,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:20,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:20,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:20,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:20,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:20,159 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:20,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:20,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:20,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:20,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:20,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:20,174 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,182 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:20,182 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:20,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:39:20,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:20,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:20,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:20,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:20,198 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:20,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:20,210 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:39:20,254 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2019-12-07 18:39:20,254 INFO L444 ModelExtractionUtils]: 6 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504e173e-e72f-4268-9577-9543d421ccad/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:20,265 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:39:20,268 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:39:20,268 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:39:20,268 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, ULTIMATE.start_main_~length1~0) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*ULTIMATE.start_main_~length1~0 Supporting invariants [1*ULTIMATE.start_main_~length1~0 - 1*v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1 >= 0] [2019-12-07 18:39:20,283 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2019-12-07 18:39:20,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:39:20,326 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:39:20,327 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:39:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:39:20,337 WARN L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:39:20,338 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:39:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:39:20,360 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:39:20,361 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-12-07 18:39:20,401 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. [2019-12-07 18:39:20,402 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 18:39:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:39:20,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-12-07 18:39:20,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 18:39:20,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:39:20,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 18:39:20,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:39:20,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2019-12-07 18:39:20,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:39:20,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2019-12-07 18:39:20,407 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:39:20,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-12-07 18:39:20,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:39:20,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:39:20,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:39:20,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:39:20,410 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:39:20,410 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:39:20,410 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:39:20,410 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:39:20,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:39:20,410 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:39:20,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:39:20,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:39:20 BoogieIcfgContainer [2019-12-07 18:39:20,415 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:39:20,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:39:20,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:39:20,415 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:39:20,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:39:19" (3/4) ... [2019-12-07 18:39:20,417 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:39:20,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:39:20,419 INFO L168 Benchmark]: Toolchain (without parser) took 1684.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -111.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:39:20,419 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:39:20,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:39:20,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:39:20,420 INFO L168 Benchmark]: Boogie Preprocessor took 16.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:39:20,420 INFO L168 Benchmark]: RCFGBuilder took 167.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:39:20,421 INFO L168 Benchmark]: BuchiAutomizer took 1132.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -11.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:39:20,421 INFO L168 Benchmark]: Witness Printer took 2.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:39:20,423 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 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 333.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.07 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 16.66 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 167.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1132.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -11.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 2.63 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * p + length1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital117 mio100 ax100 hnf99 lsp94 ukn91 mio100 lsp44 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf116 smp93 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms 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...