./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/string-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 509859d6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/string-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77cd31699320cd40da64f32a92959020d19291bd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/string-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77cd31699320cd40da64f32a92959020d19291bd ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-509859d [2019-11-27 16:12:39,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:12:39,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:12:39,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:12:39,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:12:39,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:12:39,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:12:39,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:12:39,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:12:39,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:12:39,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:12:39,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:12:39,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:12:39,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:12:39,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:12:39,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:12:39,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:12:39,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:12:39,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:12:39,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:12:39,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:12:39,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:12:39,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:12:39,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:12:39,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:12:39,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:12:39,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:12:39,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:12:39,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:12:39,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:12:39,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:12:39,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:12:39,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:12:39,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:12:39,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:12:39,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:12:39,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:12:39,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:12:39,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:12:39,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:12:39,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:12:39,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:12:39,621 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:12:39,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:12:39,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:12:39,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:12:39,628 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:12:39,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:12:39,631 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:12:39,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:12:39,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:12:39,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:12:39,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:12:39,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:12:39,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:12:39,636 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:12:39,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:12:39,637 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:12:39,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:12:39,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:12:39,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:12:39,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:12:39,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:12:39,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:12:39,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:12:39,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:12:39,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:12:39,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:12:39,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:12:39,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:12:39,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77cd31699320cd40da64f32a92959020d19291bd [2019-11-27 16:12:40,179 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:12:40,210 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:12:40,219 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:12:40,221 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:12:40,225 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:12:40,226 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/string-2.i [2019-11-27 16:12:40,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a23ecc3b/c77589eae53341edb6fb63be0e26911a/FLAG98bf73e51 [2019-11-27 16:12:41,466 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:12:41,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/string-2.i [2019-11-27 16:12:41,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a23ecc3b/c77589eae53341edb6fb63be0e26911a/FLAG98bf73e51 [2019-11-27 16:12:41,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a23ecc3b/c77589eae53341edb6fb63be0e26911a [2019-11-27 16:12:41,530 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:12:41,536 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:12:41,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:12:41,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:12:41,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:12:41,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:12:41" (1/1) ... [2019-11-27 16:12:41,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198c21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:41, skipping insertion in model container [2019-11-27 16:12:41,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:12:41" (1/1) ... [2019-11-27 16:12:41,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:12:41,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:12:42,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:12:42,156 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:12:42,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:12:42,373 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:12:42,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42 WrapperNode [2019-11-27 16:12:42,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:12:42,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:12:42,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:12:42,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:12:42,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42" (1/1) ... [2019-11-27 16:12:42,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42" (1/1) ... [2019-11-27 16:12:42,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:12:42,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:12:42,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:12:42,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:12:42,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42" (1/1) ... [2019-11-27 16:12:42,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42" (1/1) ... [2019-11-27 16:12:42,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42" (1/1) ... [2019-11-27 16:12:42,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42" (1/1) ... [2019-11-27 16:12:42,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42" (1/1) ... [2019-11-27 16:12:42,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42" (1/1) ... [2019-11-27 16:12:42,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:42" (1/1) ... [2019-11-27 16:12:42,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:12:42,577 INFO L168 Benchmark]: Toolchain (without parser) took 1040.60 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.4 MB in the end (delta: -29.7 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:12:42,588 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:12:42,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 837.64 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 16:12:42,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.16 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:12:42,604 INFO L168 Benchmark]: Boogie Preprocessor took 83.94 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:12:42,615 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 837.64 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 104.16 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 83.94 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-509859d [2019-11-27 16:12:46,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:12:46,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:12:46,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:12:46,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:12:46,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:12:46,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:12:46,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:12:46,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:12:46,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:12:46,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:12:46,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:12:46,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:12:46,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:12:46,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:12:46,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:12:46,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:12:46,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:12:46,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:12:46,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:12:46,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:12:46,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:12:46,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:12:46,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:12:46,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:12:46,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:12:46,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:12:46,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:12:46,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:12:46,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:12:46,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:12:46,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:12:46,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:12:46,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:12:46,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:12:46,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:12:46,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:12:46,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:12:46,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:12:46,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:12:46,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:12:46,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:12:46,905 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:12:46,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:12:46,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:12:46,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:12:46,912 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:12:46,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:12:46,914 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:12:46,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:12:46,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:12:46,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:12:46,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:12:46,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:12:46,919 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:12:46,920 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:12:46,920 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:12:46,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:12:46,920 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:12:46,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:12:46,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:12:46,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:12:46,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:12:46,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:12:46,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:12:46,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:12:46,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:12:46,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:12:46,927 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:12:46,928 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:12:46,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:12:46,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:12:46,931 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77cd31699320cd40da64f32a92959020d19291bd [2019-11-27 16:12:47,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:12:47,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:12:47,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:12:47,630 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:12:47,631 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:12:47,635 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/string-2.i [2019-11-27 16:12:47,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18a2b5a3/3c4568a73fb94be1a6b5106882923c5f/FLAG4d3b5d714 [2019-11-27 16:12:48,872 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:12:48,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/string-2.i [2019-11-27 16:12:48,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18a2b5a3/3c4568a73fb94be1a6b5106882923c5f/FLAG4d3b5d714 [2019-11-27 16:12:48,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18a2b5a3/3c4568a73fb94be1a6b5106882923c5f [2019-11-27 16:12:48,939 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:12:48,946 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:12:48,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:12:48,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:12:48,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:12:48,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:12:48" (1/1) ... [2019-11-27 16:12:48,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b80273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:48, skipping insertion in model container [2019-11-27 16:12:48,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:12:48" (1/1) ... [2019-11-27 16:12:48,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:12:49,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:12:49,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:12:49,553 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:12:49,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:12:49,813 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:12:49,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49 WrapperNode [2019-11-27 16:12:49,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:12:49,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:12:49,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:12:49,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:12:49,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49" (1/1) ... [2019-11-27 16:12:49,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49" (1/1) ... [2019-11-27 16:12:49,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:12:49,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:12:49,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:12:49,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:12:49,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49" (1/1) ... [2019-11-27 16:12:49,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49" (1/1) ... [2019-11-27 16:12:50,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49" (1/1) ... [2019-11-27 16:12:50,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49" (1/1) ... [2019-11-27 16:12:50,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49" (1/1) ... [2019-11-27 16:12:50,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49" (1/1) ... [2019-11-27 16:12:50,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:49" (1/1) ... [2019-11-27 16:12:50,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:12:50,093 INFO L168 Benchmark]: Toolchain (without parser) took 1142.76 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.3 MB in the end (delta: -29.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:12:50,096 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:12:50,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.26 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:12:50,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 147.58 ms. Allocated memory is still 1.0 GB. Free memory is still 991.3 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:12:50,104 INFO L168 Benchmark]: Boogie Preprocessor took 114.74 ms. Allocated memory is still 1.0 GB. Free memory is still 991.3 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:12:50,111 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 872.26 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 147.58 ms. Allocated memory is still 1.0 GB. Free memory is still 991.3 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 114.74 ms. Allocated memory is still 1.0 GB. Free memory is still 991.3 MB. There was no memory consumed. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...