./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/strchr-2.c --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_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/strchr-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/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 9856f7645e91c0d9454d45981854535d3bc496b2 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:01:09,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:09,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:09,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:09,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:09,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:09,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:09,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:09,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:09,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:09,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:09,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:09,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:09,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:09,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:09,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:09,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:09,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:09,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:09,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:09,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:09,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:09,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:09,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:09,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:09,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:09,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:09,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:09,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:09,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:09,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:09,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:09,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:09,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:09,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:09,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:09,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:09,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:09,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:09,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:09,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:09,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:01:09,298 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:09,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:09,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:09,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:09,300 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:09,300 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:01:09,300 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:01:09,300 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:01:09,301 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:01:09,301 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:01:09,311 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:01:09,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:09,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:09,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:09,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:09,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:01:09,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:01:09,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:01:09,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:09,313 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:01:09,313 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:09,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:01:09,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:09,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:09,314 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:01:09,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:09,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:09,314 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:01:09,315 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:01:09,315 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_61b70195-ebe4-4fa9-bf48-d6f87e24626e/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 -> 9856f7645e91c0d9454d45981854535d3bc496b2 [2019-10-22 09:01:09,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:09,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:09,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:09,364 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:09,364 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:09,365 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/strchr-2.c [2019-10-22 09:01:09,408 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/data/b7279a41c/cbe2c174e3ac4f4fa565cc6793e921dc/FLAGd48df1c10 [2019-10-22 09:01:09,813 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:09,814 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/sv-benchmarks/c/termination-crafted-lit/strchr-2.c [2019-10-22 09:01:09,819 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/data/b7279a41c/cbe2c174e3ac4f4fa565cc6793e921dc/FLAGd48df1c10 [2019-10-22 09:01:10,216 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/bin/uautomizer/data/b7279a41c/cbe2c174e3ac4f4fa565cc6793e921dc [2019-10-22 09:01:10,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:10,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:10,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:10,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:10,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:10,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f82444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10, skipping insertion in model container [2019-10-22 09:01:10,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,235 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:10,250 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:10,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:10,406 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:10,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:10,490 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:10,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10 WrapperNode [2019-10-22 09:01:10,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:10,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:10,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:10,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:10,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:10,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:10,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:10,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:10,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... [2019-10-22 09:01:10,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:10,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:10,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:10,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:10,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61b70195-ebe4-4fa9-bf48-d6f87e24626e/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 09:01:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:01:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:10,773 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:10,774 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 09:01:10,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:10 BoogieIcfgContainer [2019-10-22 09:01:10,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:10,776 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:01:10,776 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:01:10,779 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:01:10,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:10,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:01:10" (1/3) ... [2019-10-22 09:01:10,781 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64997c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:10, skipping insertion in model container [2019-10-22 09:01:10,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:10,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:10" (2/3) ... [2019-10-22 09:01:10,782 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64997c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:10, skipping insertion in model container [2019-10-22 09:01:10,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:10,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:10" (3/3) ... [2019-10-22 09:01:10,784 INFO L371 chiAutomizerObserver]: Analyzing ICFG strchr-2.c [2019-10-22 09:01:10,826 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:01:10,826 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:01:10,827 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:01:10,827 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:10,827 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:10,827 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:01:10,827 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:10,827 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:01:10,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-10-22 09:01:10,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:01:10,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:10,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:10,867 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:10,867 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:01:10,867 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:01:10,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-10-22 09:01:10,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:01:10,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:10,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:10,869 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:10,869 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:01:10,876 INFO L791 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 9#L-1true havoc main_#res;havoc main_#t~ret8.base, main_#t~ret8.offset, main_#t~nondet9, main_#t~ret10.base, main_#t~ret10.offset;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 16#L14true assume !(build_nondet_String_~length~0 < 1); 13#L14-2true call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 6#L19true main_#t~ret8.base, main_#t~ret8.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_#t~ret8.base, main_#t~ret8.offset, main_#t~nondet9;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset, cstrchr_#t~mem2, cstrchr_#t~mem3, cstrchr_#t~short4, cstrchr_#t~mem6, cstrchr_#t~ite7.base, cstrchr_#t~ite7.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 3#L31-5true [2019-10-22 09:01:10,877 INFO L793 eck$LassoCheckResult]: Loop: 3#L31-5true call cstrchr_#t~mem2 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := 0 != cstrchr_#t~mem2; 7#L31-1true assume cstrchr_#t~short4;call cstrchr_#t~mem3 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := cstrchr_#t~mem3 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 5#L31-3true assume !!cstrchr_#t~short4;havoc cstrchr_#t~short4;havoc cstrchr_#t~mem2;havoc cstrchr_#t~mem3;cstrchr_#t~post5.base, cstrchr_#t~post5.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post5.base, 1 + cstrchr_#t~post5.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset; 3#L31-5true [2019-10-22 09:01:10,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,885 INFO L82 PathProgramCache]: Analyzing trace with hash 28695750, now seen corresponding path program 1 times [2019-10-22 09:01:10,893 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:10,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596150575] [2019-10-22 09:01:10,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:11,016 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:11,018 INFO L82 PathProgramCache]: Analyzing trace with hash 45783, now seen corresponding path program 1 times [2019-10-22 09:01:11,018 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:11,018 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501874800] [2019-10-22 09:01:11,018 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:11,018 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:11,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:11,040 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:11,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:11,042 INFO L82 PathProgramCache]: Analyzing trace with hash 176612338, now seen corresponding path program 1 times [2019-10-22 09:01:11,042 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:11,042 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656350073] [2019-10-22 09:01:11,042 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:11,043 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:11,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:11,116 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:11,358 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-10-22 09:01:11,518 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-10-22 09:01:11,593 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:11,594 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:11,595 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:11,595 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:11,595 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:11,596 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:11,596 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:11,596 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:11,596 INFO L131 ssoRankerPreferences]: Filename of dumped script: strchr-2.c_Iteration1_Lasso [2019-10-22 09:01:11,596 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:11,596 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:11,620 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 09:01:11,625 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 09:01:11,628 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 09:01:11,630 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 09:01:11,634 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 09:01:11,639 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 09:01:11,642 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 09:01:11,645 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 09:01:11,648 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 09:01:11,652 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 09:01:11,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:11,657 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 09:01:11,659 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 09:01:11,661 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 09:01:11,813 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-10-22 09:01:11,917 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 09:01:11,920 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 09:01:11,922 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 09:01:12,346 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-10-22 09:01:12,511 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:12,520 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:12,522 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 09:01:12,525 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,526 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,527 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,527 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,527 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,529 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,529 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,531 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,531 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 09:01:12,532 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,532 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,532 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,532 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,532 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,533 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,533 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,535 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 09:01:12,535 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,535 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,536 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,536 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,536 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,536 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,536 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,540 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 09:01:12,541 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,543 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,543 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,543 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,543 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,544 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,544 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,546 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 09:01:12,546 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,546 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,547 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,547 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,549 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:12,561 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:12,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,565 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 09:01:12,565 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,565 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,568 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,568 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,568 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,569 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,569 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,571 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 09:01:12,572 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,572 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,572 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,572 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,573 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,575 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,577 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,578 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 09:01:12,579 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,579 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,579 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,580 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,580 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,580 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,580 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,584 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 09:01:12,585 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,587 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,587 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,587 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,589 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:12,589 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:12,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,592 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 09:01:12,592 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,592 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,592 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,593 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,593 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,595 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,595 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,596 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 09:01:12,597 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,599 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,599 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,599 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,599 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,600 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,600 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,600 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,601 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 09:01:12,601 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,601 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,602 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,602 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,602 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,602 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,602 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,603 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,603 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 09:01:12,604 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,604 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:12,604 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,604 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,605 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,608 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:12,608 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:12,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,609 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 09:01:12,610 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,610 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,610 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,610 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,612 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:12,612 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:12,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,618 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 09:01:12,618 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,619 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,619 INFO L203 nArgumentSynthesizer]: 6 loop disjuncts [2019-10-22 09:01:12,619 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,668 INFO L400 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2019-10-22 09:01:12,668 INFO L401 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2019-10-22 09:01:12,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,903 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 09:01:12,903 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,904 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,904 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,904 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,905 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:12,906 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:12,908 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,908 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 09:01:12,908 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,909 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,909 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,909 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,910 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:12,910 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:12,917 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:12,920 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,920 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-10-22 09:01:12,920 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,920 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,922 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-10-22 09:01:12,922 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:12,930 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:12,930 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 09:01:12,931 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:12,931 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:12,931 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:12,931 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:12,933 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:12,933 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:12,954 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:12,985 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 09:01:12,988 INFO L444 ModelExtractionUtils]: 26 out of 31 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-10-22 09:01:12,991 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:12,992 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 09:01:12,993 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:12,993 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset, v_rep(select #length ULTIMATE.start_cstrchr_~s.base)_1) = -1*ULTIMATE.start_cstrchr_~s.offset + 1*v_rep(select #length ULTIMATE.start_cstrchr_~s.base)_1 Supporting invariants [] [2019-10-22 09:01:13,009 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-10-22 09:01:13,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 09:01:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:13,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:13,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:13,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:01:13,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:13,102 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 09:01:13,117 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 09:01:13,118 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-10-22 09:01:13,164 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 32 states and 40 transitions. Complement of second has 5 states. [2019-10-22 09:01:13,165 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 09:01:13,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2019-10-22 09:01:13,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2019-10-22 09:01:13,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:13,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 8 letters. Loop has 3 letters. [2019-10-22 09:01:13,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:13,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 5 letters. Loop has 6 letters. [2019-10-22 09:01:13,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:13,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2019-10-22 09:01:13,172 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:13,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-10-22 09:01:13,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:01:13,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:01:13,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:01:13,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:13,176 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:13,176 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:13,176 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:13,176 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:01:13,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:13,176 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:13,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:01:13,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:13 BoogieIcfgContainer [2019-10-22 09:01:13,182 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:13,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:13,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:13,183 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:13,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:10" (3/4) ... [2019-10-22 09:01:13,187 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:13,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:13,188 INFO L168 Benchmark]: Toolchain (without parser) took 2968.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -106.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:13,189 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:13,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:13,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.44 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:13,190 INFO L168 Benchmark]: Boogie Preprocessor took 19.19 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 09:01:13,191 INFO L168 Benchmark]: RCFGBuilder took 230.68 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 09:01:13,191 INFO L168 Benchmark]: BuchiAutomizer took 2406.56 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: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:13,191 INFO L168 Benchmark]: Witness Printer took 4.38 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 09:01:13,194 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.44 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.19 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 230.68 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 2406.56 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: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[s] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. 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: 13 SDtfs, 15 SDslu, 7 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital193 mio100 ax100 hnf99 lsp98 ukn73 mio100 lsp36 div137 bol100 ite100 ukn100 eq155 hnf79 smp100 dnf729 smp27 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 284ms VariablesStem: 3 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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...