./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/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 001582003a9a42d7c73bfe1e3e6fff242f9ddf73 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:17:22,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:17:22,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:17:22,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:17:22,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:17:22,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:17:22,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:17:22,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:17:22,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:17:22,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:17:22,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:17:22,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:17:22,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:17:22,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:17:22,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:17:22,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:17:22,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:17:22,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:17:22,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:17:22,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:17:22,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:17:22,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:17:22,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:17:22,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:17:22,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:17:22,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:17:22,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:17:22,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:17:22,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:17:22,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:17:22,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:17:22,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:17:22,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:17:22,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:17:22,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:17:22,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:17:22,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:17:22,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:17:22,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:17:22,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:17:22,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:17:22,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 12:17:22,397 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:17:22,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:17:22,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:17:22,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:17:22,399 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:17:22,399 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:17:22,399 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:17:22,399 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:17:22,400 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:17:22,400 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:17:22,400 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:17:22,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:17:22,400 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:17:22,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:17:22,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:17:22,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:17:22,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:17:22,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:17:22,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:17:22,402 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:17:22,402 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:17:22,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:17:22,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:17:22,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:17:22,403 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:17:22,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:17:22,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:17:22,403 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:17:22,403 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:17:22,404 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:17:22,404 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/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 -> 001582003a9a42d7c73bfe1e3e6fff242f9ddf73 [2019-12-07 12:17:22,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:17:22,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:17:22,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:17:22,517 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:17:22,518 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:17:22,518 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.i [2019-12-07 12:17:22,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/data/63ae80951/b08474f9fa1b438d9f5084300df2a55c/FLAG6f42e06ed [2019-12-07 12:17:22,955 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:17:22,956 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.i [2019-12-07 12:17:22,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/data/63ae80951/b08474f9fa1b438d9f5084300df2a55c/FLAG6f42e06ed [2019-12-07 12:17:23,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/data/63ae80951/b08474f9fa1b438d9f5084300df2a55c [2019-12-07 12:17:23,333 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:17:23,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:17:23,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:17:23,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:17:23,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:17:23,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d34426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23, skipping insertion in model container [2019-12-07 12:17:23,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:17:23,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:17:23,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:17:23,589 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:17:23,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:17:23,645 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:17:23,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23 WrapperNode [2019-12-07 12:17:23,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:17:23,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:17:23,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:17:23,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:17:23,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:17:23,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:17:23,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:17:23,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:17:23,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... [2019-12-07 12:17:23,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:17:23,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:17:23,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:17:23,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:17:23,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:17:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:17:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:17:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:17:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:17:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:17:23,871 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:17:23,871 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 12:17:23,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:17:23 BoogieIcfgContainer [2019-12-07 12:17:23,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:17:23,872 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:17:23,872 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:17:23,875 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:17:23,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:17:23,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:17:23" (1/3) ... [2019-12-07 12:17:23,876 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59bca699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:17:23, skipping insertion in model container [2019-12-07 12:17:23,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:17:23,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:23" (2/3) ... [2019-12-07 12:17:23,876 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59bca699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:17:23, skipping insertion in model container [2019-12-07 12:17:23,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:17:23,877 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:17:23" (3/3) ... [2019-12-07 12:17:23,877 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstpcpy-alloca-2.i [2019-12-07 12:17:23,906 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:17:23,906 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:17:23,906 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:17:23,906 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:17:23,906 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:17:23,906 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:17:23,906 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:17:23,906 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:17:23,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-12-07 12:17:23,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 12:17:23,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:23,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:23,933 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 12:17:23,933 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 12:17:23,933 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:17:23,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-12-07 12:17:23,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 12:17:23,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:17:23,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:17:23,935 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 12:17:23,935 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 12:17:23,940 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 8#L555true assume !(main_~length1~0 < 1); 11#L555-2true assume !(main_~length2~0 < 1); 4#L558-1true assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstpcpy_#in~to.base, cstpcpy_#in~to.offset, cstpcpy_#in~from.base, cstpcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstpcpy_#res.base, cstpcpy_#res.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset, cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset, cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, cstpcpy_~from.base, cstpcpy_~from.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_#in~to.base, cstpcpy_#in~to.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_#in~from.base, cstpcpy_#in~from.offset; 6#L549-4true [2019-12-07 12:17:23,940 INFO L796 eck$LassoCheckResult]: Loop: 6#L549-4true call cstpcpy_#t~mem4 := read~int(cstpcpy_~from.base, cstpcpy_~from.offset, 1);call write~int(cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, 1); 3#L549-1true assume !!(0 != cstpcpy_#t~mem4);havoc cstpcpy_#t~mem4; 5#L549-3true cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset;cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;havoc cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset; 6#L549-4true [2019-12-07 12:17:23,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:23,944 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2019-12-07 12:17:23,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:23,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108263468] [2019-12-07 12:17:23,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:24,047 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:24,048 INFO L82 PathProgramCache]: Analyzing trace with hash 52792, now seen corresponding path program 1 times [2019-12-07 12:17:24,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:24,048 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808390059] [2019-12-07 12:17:24,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:24,062 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:24,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:24,063 INFO L82 PathProgramCache]: Analyzing trace with hash 180551759, now seen corresponding path program 1 times [2019-12-07 12:17:24,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:17:24,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294855049] [2019-12-07 12:17:24,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:17:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:17:24,105 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:17:24,355 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-12-07 12:17:24,428 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:17:24,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:17:24,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:17:24,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:17:24,429 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:17:24,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:24,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:17:24,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:17:24,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpcpy-alloca-2.i_Iteration1_Lasso [2019-12-07 12:17:24,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:17:24,429 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:17:24,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,636 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-12-07 12:17:24,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:24,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:17:25,099 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:17:25,104 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:25,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:25,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:25,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:25,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:25,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:25,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:25,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:25,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:25,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:25,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:25,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:25,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:25,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:25,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:25,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:25,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:25,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:25,128 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:25,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:25,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:25,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:25,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:25,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:25,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:25,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:25,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:25,137 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:25,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:25,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:25,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:25,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:25,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:25,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:25,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:25,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:25,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:25,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:25,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:25,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:25,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:25,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:25,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:25,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:25,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:25,153 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:25,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:25,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:25,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:25,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:25,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:25,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:17:25,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:17:25,165 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:25,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:25,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:25,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:17:25,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:25,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:25,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:25,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:17:25,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:17:25,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:25,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:17:25,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:17:25,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:17:25,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:17:25,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:17:25,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:17:25,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:17:25,204 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:17:25,230 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2019-12-07 12:17:25,231 INFO L444 ModelExtractionUtils]: 31 out of 43 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14e5da26-e31d-41e6-b275-5f094d8ac1a8/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:17:25,236 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:17:25,242 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 12:17:25,242 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:17:25,242 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstpcpy_~from.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1) = -1*ULTIMATE.start_cstpcpy_~from.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1 Supporting invariants [] [2019-12-07 12:17:25,278 INFO L297 tatePredicateManager]: 11 out of 13 supporting invariants were superfluous and have been removed [2019-12-07 12:17:25,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 12:17:25,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:17:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:25,340 INFO L264 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 24 conjunts are in the unsatisfiable core [2019-12-07 12:17:25,341 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:17:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:17:25,352 WARN L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 12:17:25,353 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:17:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:17:25,376 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 12:17:25,377 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2019-12-07 12:17:25,426 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 26 states and 30 transitions. Complement of second has 6 states. [2019-12-07 12:17:25,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:17:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 12:17:25,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-12-07 12:17:25,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 12:17:25,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:17:25,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 8 letters. Loop has 3 letters. [2019-12-07 12:17:25,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:17:25,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 6 letters. [2019-12-07 12:17:25,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:17:25,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2019-12-07 12:17:25,434 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:17:25,436 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2019-12-07 12:17:25,437 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 12:17:25,437 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 12:17:25,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 12:17:25,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:17:25,437 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:17:25,437 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:17:25,438 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:17:25,438 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:17:25,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:17:25,438 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:17:25,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 12:17:25,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:17:25 BoogieIcfgContainer [2019-12-07 12:17:25,442 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:17:25,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:17:25,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:17:25,443 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:17:25,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:17:23" (3/4) ... [2019-12-07 12:17:25,446 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:17:25,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:17:25,448 INFO L168 Benchmark]: Toolchain (without parser) took 2113.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 933.3 MB in the beginning and 1.0 GB in the end (delta: -70.0 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:25,448 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:17:25,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 933.3 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:25,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:17:25,450 INFO L168 Benchmark]: Boogie Preprocessor took 17.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:25,450 INFO L168 Benchmark]: RCFGBuilder took 179.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:25,451 INFO L168 Benchmark]: BuchiAutomizer took 1569.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:25,451 INFO L168 Benchmark]: Witness Printer took 3.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:17:25,455 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 933.3 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 179.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1569.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * from + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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: 12 SDtfs, 16 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital191 mio100 ax109 hnf99 lsp88 ukn90 mio100 lsp47 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...