./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/strreplace-alloca-1.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_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/strreplace-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/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 4aab5dc49efb2008f48b80e5d09bedb13ca5cefa ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:58:01,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:01,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:01,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:01,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:01,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:01,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:01,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:01,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:01,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:01,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:01,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:01,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:01,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:01,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:01,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:01,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:01,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:01,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:01,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:01,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:01,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:01,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:01,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:01,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:01,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:01,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:01,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:01,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:01,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:01,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:01,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:01,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:01,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:01,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:01,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:01,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:01,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:01,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:01,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:01,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:01,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:58:01,306 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:01,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:01,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:01,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:01,308 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:01,308 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:58:01,308 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:58:01,309 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:58:01,309 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:58:01,309 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:58:01,309 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:58:01,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:01,309 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:01,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:01,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:01,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:58:01,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:58:01,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:58:01,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:01,312 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:58:01,312 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:01,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:58:01,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:01,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:01,313 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:58:01,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:01,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:01,314 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:58:01,314 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:58:01,314 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_210252de-28d8-4a09-abde-0bc10c0766bf/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 -> 4aab5dc49efb2008f48b80e5d09bedb13ca5cefa [2019-10-22 08:58:01,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:01,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:01,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:01,362 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:01,363 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:01,363 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/strreplace-alloca-1.i [2019-10-22 08:58:01,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/data/21c0c2094/ece4ad8e43a44dce935f06a3a570366d/FLAG4160d067f [2019-10-22 08:58:01,830 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:01,830 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/sv-benchmarks/c/termination-memory-alloca/strreplace-alloca-1.i [2019-10-22 08:58:01,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/data/21c0c2094/ece4ad8e43a44dce935f06a3a570366d/FLAG4160d067f [2019-10-22 08:58:01,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/bin/uautomizer/data/21c0c2094/ece4ad8e43a44dce935f06a3a570366d [2019-10-22 08:58:01,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:01,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:01,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:01,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:01,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:01,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:01" (1/1) ... [2019-10-22 08:58:01,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416ef513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:01, skipping insertion in model container [2019-10-22 08:58:01,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:01" (1/1) ... [2019-10-22 08:58:01,870 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:01,899 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:02,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:02,227 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:02,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:02,295 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:02,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02 WrapperNode [2019-10-22 08:58:02,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:02,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:02,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:02,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:02,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:02,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:02,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:02,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:02,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:02,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:02,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:02,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:02,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_210252de-28d8-4a09-abde-0bc10c0766bf/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 08:58:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:58:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:02,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:02,610 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:02,611 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:58:02,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:02 BoogieIcfgContainer [2019-10-22 08:58:02,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:02,612 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:58:02,612 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:58:02,615 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:58:02,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:02,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:58:01" (1/3) ... [2019-10-22 08:58:02,617 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4af53a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:02, skipping insertion in model container [2019-10-22 08:58:02,617 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:02,617 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (2/3) ... [2019-10-22 08:58:02,618 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4af53a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:02, skipping insertion in model container [2019-10-22 08:58:02,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:02,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:02" (3/3) ... [2019-10-22 08:58:02,619 INFO L371 chiAutomizerObserver]: Analyzing ICFG strreplace-alloca-1.i [2019-10-22 08:58:02,651 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:58:02,651 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:58:02,651 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:58:02,651 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:02,651 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:02,652 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:58:02,652 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:02,652 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:58:02,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-10-22 08:58:02,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:58:02,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:02,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:02,682 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:58:02,682 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 08:58:02,682 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:58:02,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-10-22 08:58:02,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:58:02,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:02,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:02,683 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:58:02,683 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 08:58:02,690 INFO L791 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 7#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~nondet9, main_#t~ret10, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 10#L562true assume !(main_~length1~0 < 1); 14#L562-2true call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrreplace_#in~s.base, cstrreplace_#in~s.offset, cstrreplace_#in~old, cstrreplace_#in~new := main_~nondetString1~0.base, main_~nondetString1~0.offset, (if main_#t~nondet8 % 256 <= 127 then main_#t~nondet8 % 256 else main_#t~nondet8 % 256 - 256), (if main_#t~nondet9 % 256 <= 127 then main_#t~nondet9 % 256 else main_#t~nondet9 % 256 - 256);havoc cstrreplace_#res;havoc cstrreplace_#t~mem3, cstrreplace_#t~post4, cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset, cstrreplace_#t~mem2, cstrreplace_~s.base, cstrreplace_~s.offset, cstrreplace_~old, cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, cstrreplace_~numReplaced~0;cstrreplace_~s.base, cstrreplace_~s.offset := cstrreplace_#in~s.base, cstrreplace_#in~s.offset;cstrreplace_~old := cstrreplace_#in~old;cstrreplace_~new := cstrreplace_#in~new;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_~s.base, cstrreplace_~s.offset;cstrreplace_~numReplaced~0 := 0; 3#L551-3true [2019-10-22 08:58:02,690 INFO L793 eck$LassoCheckResult]: Loop: 3#L551-3true call cstrreplace_#t~mem2 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 12#L551-1true assume !!(0 != cstrreplace_#t~mem2);havoc cstrreplace_#t~mem2;call cstrreplace_#t~mem3 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 9#L552true assume cstrreplace_#t~mem3 == cstrreplace_~old;havoc cstrreplace_#t~mem3;call write~int(cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1);cstrreplace_#t~post4 := cstrreplace_~numReplaced~0;cstrreplace_~numReplaced~0 := 1 + cstrreplace_#t~post4;havoc cstrreplace_#t~post4; 13#L552-2true cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset := cstrreplace_~p~0.base, cstrreplace_~p~0.offset;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_#t~post5.base, 1 + cstrreplace_#t~post5.offset;havoc cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset; 3#L551-3true [2019-10-22 08:58:02,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:02,695 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-10-22 08:58:02,703 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:02,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119071778] [2019-10-22 08:58:02,703 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:02,703 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:02,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:02,820 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:02,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:02,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1359562, now seen corresponding path program 1 times [2019-10-22 08:58:02,822 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:02,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995753846] [2019-10-22 08:58:02,822 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:02,822 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:02,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:02,837 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:02,838 INFO L82 PathProgramCache]: Analyzing trace with hash 176704686, now seen corresponding path program 1 times [2019-10-22 08:58:02,839 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:02,839 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144879138] [2019-10-22 08:58:02,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:02,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:02,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:02,900 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:03,170 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-10-22 08:58:03,532 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-10-22 08:58:03,544 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:03,544 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:03,545 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:03,545 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:03,545 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:03,546 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:03,546 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:03,546 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:03,546 INFO L131 ssoRankerPreferences]: Filename of dumped script: strreplace-alloca-1.i_Iteration1_Lasso [2019-10-22 08:58:03,546 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:03,546 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:03,583 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 08:58:03,588 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 08:58:03,594 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 08:58:03,597 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 08:58:03,599 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 08:58:03,601 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 08:58:03,603 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 08:58:03,642 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-10-22 08:58:04,283 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-10-22 08:58:04,342 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 08:58:04,345 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 08:58:04,347 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 08:58:04,350 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 08:58:04,352 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 08:58:04,354 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 08:58:04,357 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 08:58:04,358 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 08:58:04,361 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 08:58:04,935 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:04,939 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:04,941 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 08:58:04,943 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:04,945 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:04,946 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:04,946 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:04,946 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:04,948 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:04,948 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:04,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:04,952 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 08:58:04,959 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:04,959 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:04,959 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:04,959 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:04,961 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:04,962 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:04,973 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:04,974 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 08:58:04,975 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:04,975 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:04,975 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:04,975 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:04,975 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:04,975 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:04,976 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:04,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:04,977 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 08:58:04,977 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:04,977 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:04,977 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:04,977 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:04,978 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:04,978 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:04,978 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:04,979 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:04,979 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 08:58:04,980 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:04,980 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:04,980 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:04,980 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:04,980 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:04,981 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:04,981 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:04,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:04,982 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 08:58:04,982 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:04,982 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:04,983 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:04,983 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:04,983 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:04,983 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:04,983 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:04,984 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:04,984 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 08:58:04,985 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:04,985 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-10-22 08:58:04,985 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:04,985 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:04,989 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-10-22 08:58:04,990 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:05,012 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:05,012 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 08:58:05,013 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:05,013 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-10-22 08:58:05,013 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:05,013 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:05,016 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-10-22 08:58:05,016 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:05,029 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:05,034 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 08:58:05,035 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:05,035 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:05,035 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:05,035 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:05,038 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:05,039 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:05,089 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:05,133 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 08:58:05,133 INFO L444 ModelExtractionUtils]: 23 out of 28 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-10-22 08:58:05,136 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:05,138 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 08:58:05,138 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:05,139 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrreplace_~p~0.base)_1, ULTIMATE.start_cstrreplace_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrreplace_~p~0.base)_1 - 1*ULTIMATE.start_cstrreplace_~p~0.offset Supporting invariants [] [2019-10-22 08:58:05,154 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-10-22 08:58:05,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 08:58:05,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:05,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:05,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:05,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:58:05,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:05,216 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 08:58:05,230 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 08:58:05,231 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2019-10-22 08:58:05,268 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 27 states and 32 transitions. Complement of second has 5 states. [2019-10-22 08:58:05,269 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 08:58:05,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:05,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-10-22 08:58:05,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 4 letters. Loop has 4 letters. [2019-10-22 08:58:05,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:05,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 8 letters. Loop has 4 letters. [2019-10-22 08:58:05,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:05,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 4 letters. Loop has 8 letters. [2019-10-22 08:58:05,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:05,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2019-10-22 08:58:05,276 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:05,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2019-10-22 08:58:05,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:58:05,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:58:05,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:58:05,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:05,280 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:05,281 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:05,281 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:05,281 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:58:05,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:05,281 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:05,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:58:05,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:58:05 BoogieIcfgContainer [2019-10-22 08:58:05,287 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:58:05,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:05,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:05,287 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:05,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:02" (3/4) ... [2019-10-22 08:58:05,291 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:58:05,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:05,292 INFO L168 Benchmark]: Toolchain (without parser) took 3436.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.1 MB in the beginning and 927.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 149.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:05,292 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:05,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:05,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:05,294 INFO L168 Benchmark]: Boogie Preprocessor took 21.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:05,294 INFO L168 Benchmark]: RCFGBuilder took 256.93 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:05,295 INFO L168 Benchmark]: BuchiAutomizer took 2674.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.5 MB in the end (delta: 169.9 MB). Peak memory consumption was 169.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:05,295 INFO L168 Benchmark]: Witness Printer took 3.80 ms. Allocated memory is still 1.2 GB. Free memory is still 927.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:05,297 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 438.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 256.93 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2674.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.5 MB in the end (delta: 169.9 MB). Peak memory consumption was 169.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.80 ms. Allocated memory is still 1.2 GB. Free memory is still 927.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[p] + -1 * p and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. 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: 11 SDtfs, 21 SDslu, 6 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital512 mio100 ax103 hnf98 lsp43 ukn168 mio100 lsp15 div138 bol100 ite100 ukn100 eq157 hnf71 smp81 dnf228 smp53 tf100 neg97 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 6 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...