./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_2c.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_2c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14df269faa4a77275028af94d8141ab36c184cf5 .......................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:25,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:25,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:25,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:25,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:25,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:25,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:25,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:25,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:25,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:25,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:25,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:25,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:25,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:25,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:25,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:25,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:25,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:25,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:25,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:25,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:25,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:25,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:25,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:25,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:25,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:25,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:25,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:25,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:25,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:25,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:25,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:25,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:25,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:25,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:25,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:25,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:25,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:25,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:25,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:25,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:25,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-25 08:51:25,249 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:25,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:25,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:25,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:25,259 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:25,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:25,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:51:25,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:25,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:25,260 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-25 08:51:25,261 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-25 08:51:25,261 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-25 08:51:25,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:25,261 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:51:25,261 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:51:25,262 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:25,262 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:25,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:25,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:25,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:25,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:25,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:25,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:25,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:25,264 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:51:25,264 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:51:25,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:51:25,264 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_14382258-6633-476b-8926-662752c1f720/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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 14df269faa4a77275028af94d8141ab36c184cf5 [2019-11-25 08:51:25,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:25,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:25,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:25,414 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:25,415 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:25,415 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/NestedRecursion_2c.c [2019-11-25 08:51:25,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/data/b21501320/a19e28b2f0ba44fc8330bede22bac1a9/FLAG96d8f6663 [2019-11-25 08:51:25,896 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:25,896 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/sv-benchmarks/c/termination-crafted/NestedRecursion_2c.c [2019-11-25 08:51:25,902 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/data/b21501320/a19e28b2f0ba44fc8330bede22bac1a9/FLAG96d8f6663 [2019-11-25 08:51:26,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/data/b21501320/a19e28b2f0ba44fc8330bede22bac1a9 [2019-11-25 08:51:26,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:26,262 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-25 08:51:26,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:26,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:26,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:26,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:26" (1/1) ... [2019-11-25 08:51:26,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fba7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26, skipping insertion in model container [2019-11-25 08:51:26,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:26" (1/1) ... [2019-11-25 08:51:26,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:26,290 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:26,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:26,430 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:26,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:26,518 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:26,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26 WrapperNode [2019-11-25 08:51:26,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:26,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:26,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:26,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:26,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26" (1/1) ... [2019-11-25 08:51:26,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26" (1/1) ... [2019-11-25 08:51:26,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26" (1/1) ... [2019-11-25 08:51:26,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26" (1/1) ... [2019-11-25 08:51:26,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26" (1/1) ... [2019-11-25 08:51:26,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26" (1/1) ... [2019-11-25 08:51:26,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26" (1/1) ... [2019-11-25 08:51:26,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:26,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:26,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:26,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:26,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:26,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-25 08:51:26,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:26,592 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-25 08:51:26,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-25 08:51:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-25 08:51:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-25 08:51:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-25 08:51:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-25 08:51:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:26,752 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:26,752 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-25 08:51:26,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:26 BoogieIcfgContainer [2019-11-25 08:51:26,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:26,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:26,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:26,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:26,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:26" (1/3) ... [2019-11-25 08:51:26,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa0365c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:26, skipping insertion in model container [2019-11-25 08:51:26,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:26" (2/3) ... [2019-11-25 08:51:26,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa0365c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:26, skipping insertion in model container [2019-11-25 08:51:26,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:26" (3/3) ... [2019-11-25 08:51:26,773 INFO L109 eAbstractionObserver]: Analyzing ICFG NestedRecursion_2c.c [2019-11-25 08:51:26,795 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:26,801 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-11-25 08:51:26,825 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-11-25 08:51:26,858 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:26,858 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-25 08:51:26,859 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:26,859 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:26,859 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:26,859 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:26,859 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:26,859 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:26,886 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-25 08:51:26,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:51:26,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:26 BoogieIcfgContainer [2019-11-25 08:51:26,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:26,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:26,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:26,898 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:26,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:26" (3/4) ... [2019-11-25 08:51:26,902 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:51:26,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-25 08:51:26,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2019-11-25 08:51:26,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-25 08:51:26,912 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-25 08:51:26,913 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:51:26,913 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:51:26,956 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_14382258-6633-476b-8926-662752c1f720/bin/uautomizer/witness.graphml [2019-11-25 08:51:26,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:26,959 INFO L168 Benchmark]: Toolchain (without parser) took 695.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:26,959 INFO L168 Benchmark]: CDTParser took 1.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:26,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -193.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:26,961 INFO L168 Benchmark]: Boogie Preprocessor took 26.97 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. [2019-11-25 08:51:26,962 INFO L168 Benchmark]: RCFGBuilder took 207.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:26,963 INFO L168 Benchmark]: TraceAbstraction took 142.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:26,963 INFO L168 Benchmark]: Witness Printer took 58.84 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. [2019-11-25 08:51:26,968 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 255.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -193.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.97 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 207.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 142.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Witness Printer took 58.84 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.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 0 error locations. Result: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...