./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 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 32bit --witnessprinter.graph.data.programhash 862be090098a4271d6e1a31a6f1302665ccfc795 ............................................................................................................................. 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 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 32bit --witnessprinter.graph.data.programhash 862be090098a4271d6e1a31a6f1302665ccfc795 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 17:56:44,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:56:44,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:56:44,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:56:44,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:56:44,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:56:44,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:56:44,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:56:44,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:56:44,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:56:44,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:56:44,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:56:44,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:56:44,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:56:44,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:56:44,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:56:44,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:56:44,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:56:44,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:56:44,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:56:44,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:56:44,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:56:44,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:56:44,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:56:44,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:56:44,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:56:44,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:56:44,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:56:44,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:56:44,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:56:44,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:56:44,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:56:44,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:56:44,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:56:44,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:56:44,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:56:44,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:56:44,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:56:44,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:56:44,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:56:44,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:56:44,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 17:56:44,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:56:44,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:56:44,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:56:44,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:56:44,658 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:56:44,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:56:44,659 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:56:44,659 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:56:44,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:56:44,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:56:44,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:56:44,661 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:56:44,661 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:56:44,662 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:56:44,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:56:44,663 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:56:44,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:56:44,663 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:56:44,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:56:44,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:56:44,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:56:44,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:56:44,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:56:44,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:56:44,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:56:44,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 17:56:44,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 17:56:44,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:56:44,667 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 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 862be090098a4271d6e1a31a6f1302665ccfc795 [2020-10-19 17:56:44,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:56:45,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:56:45,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:56:45,007 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:56:45,007 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:56:45,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2020-10-19 17:56:45,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f0b308f/e1c35efe7a3a4af9aa12fe68330a1b2e/FLAG74836804f [2020-10-19 17:56:45,542 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:56:45,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2020-10-19 17:56:45,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f0b308f/e1c35efe7a3a4af9aa12fe68330a1b2e/FLAG74836804f [2020-10-19 17:56:45,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f0b308f/e1c35efe7a3a4af9aa12fe68330a1b2e [2020-10-19 17:56:45,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:56:45,853 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:56:45,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:56:45,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:56:45,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:56:45,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:56:45" (1/1) ... [2020-10-19 17:56:45,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778cc7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:45, skipping insertion in model container [2020-10-19 17:56:45,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:56:45" (1/1) ... [2020-10-19 17:56:45,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:56:45,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:56:46,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:56:46,503 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-19 17:56:46,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@943ca46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:46, skipping insertion in model container [2020-10-19 17:56:46,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:56:46,506 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 17:56:46,511 INFO L168 Benchmark]: Toolchain (without parser) took 660.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:46,512 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:56:46,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:46,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 652.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 526]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 17:56:48,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:56:48,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:56:48,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:56:48,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:56:48,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:56:48,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:56:48,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:56:48,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:56:48,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:56:48,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:56:48,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:56:48,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:56:48,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:56:48,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:56:48,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:56:48,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:56:48,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:56:48,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:56:48,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:56:48,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:56:48,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:56:48,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:56:48,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:56:48,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:56:48,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:56:48,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:56:48,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:56:48,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:56:48,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:56:48,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:56:48,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:56:48,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:56:48,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:56:48,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:56:48,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:56:48,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:56:48,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:56:48,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:56:48,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:56:48,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:56:48,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 17:56:48,493 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:56:48,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:56:48,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:56:48,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:56:48,496 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:56:48,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:56:48,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:56:48,496 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:56:48,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:56:48,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:56:48,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:56:48,498 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:56:48,498 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:56:48,498 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:56:48,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:56:48,499 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:56:48,499 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 17:56:48,499 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 17:56:48,499 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:56:48,500 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:56:48,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:56:48,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:56:48,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:56:48,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:56:48,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:56:48,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:56:48,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:56:48,502 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 17:56:48,502 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 17:56:48,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:56:48,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 17:56:48,503 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 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 862be090098a4271d6e1a31a6f1302665ccfc795 [2020-10-19 17:56:48,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:56:48,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:56:48,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:56:48,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:56:48,840 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:56:48,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2020-10-19 17:56:48,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3d9de1c/bf8b6cb27bd542fead044f9ada726104/FLAGc60961bfa [2020-10-19 17:56:49,491 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:56:49,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2020-10-19 17:56:49,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3d9de1c/bf8b6cb27bd542fead044f9ada726104/FLAGc60961bfa [2020-10-19 17:56:49,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3d9de1c/bf8b6cb27bd542fead044f9ada726104 [2020-10-19 17:56:49,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:56:49,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:56:49,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:56:49,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:56:49,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:56:49,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:56:49" (1/1) ... [2020-10-19 17:56:49,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4659411e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:49, skipping insertion in model container [2020-10-19 17:56:49,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:56:49" (1/1) ... [2020-10-19 17:56:49,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:56:49,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:56:50,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:56:50,509 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 17:56:50,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:56:50,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:56:50,593 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 17:56:50,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:56:50,696 INFO L208 MainTranslator]: Completed translation [2020-10-19 17:56:50,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50 WrapperNode [2020-10-19 17:56:50,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:56:50,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 17:56:50,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 17:56:50,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 17:56:50,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50" (1/1) ... [2020-10-19 17:56:50,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50" (1/1) ... [2020-10-19 17:56:50,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50" (1/1) ... [2020-10-19 17:56:50,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50" (1/1) ... [2020-10-19 17:56:50,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50" (1/1) ... [2020-10-19 17:56:50,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50" (1/1) ... [2020-10-19 17:56:50,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50" (1/1) ... [2020-10-19 17:56:50,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 17:56:50,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 17:56:50,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 17:56:50,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 17:56:50,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 17:56:50,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 17:56:50,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 17:56:50,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:56:50,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 17:56:50,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 17:56:50,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 17:56:50,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 17:56:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 17:56:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sort [2020-10-19 17:56:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 17:56:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 17:56:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 17:56:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 17:56:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 17:56:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 17:56:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 17:56:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 17:56:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 17:56:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 17:56:50,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 17:56:50,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 17:56:50,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 17:56:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 17:56:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 17:56:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 17:56:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 17:56:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 17:56:50,854 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 17:56:50,854 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 17:56:50,854 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 17:56:50,854 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 17:56:50,855 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 17:56:50,855 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 17:56:50,855 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 17:56:50,855 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 17:56:50,855 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 17:56:50,856 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 17:56:50,856 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 17:56:50,856 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 17:56:50,856 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 17:56:50,856 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 17:56:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 17:56:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 17:56:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 17:56:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 17:56:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 17:56:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 17:56:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 17:56:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 17:56:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 17:56:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 17:56:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 17:56:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 17:56:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 17:56:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 17:56:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 17:56:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 17:56:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 17:56:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 17:56:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 17:56:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 17:56:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 17:56:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 17:56:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 17:56:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 17:56:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 17:56:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 17:56:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 17:56:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 17:56:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 17:56:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 17:56:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 17:56:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 17:56:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 17:56:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 17:56:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 17:56:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 17:56:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 17:56:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 17:56:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 17:56:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 17:56:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 17:56:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 17:56:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 17:56:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 17:56:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 17:56:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 17:56:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 17:56:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 17:56:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 17:56:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 17:56:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 17:56:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 17:56:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 17:56:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 17:56:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 17:56:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 17:56:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 17:56:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 17:56:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 17:56:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 17:56:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 17:56:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 17:56:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 17:56:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 17:56:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 17:56:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 17:56:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 17:56:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 17:56:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 17:56:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 17:56:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 17:56:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 17:56:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 17:56:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 17:56:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 17:56:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 17:56:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 17:56:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure sort [2020-10-19 17:56:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 17:56:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 17:56:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 17:56:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 17:56:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 17:56:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 17:56:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 17:56:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:56:51,596 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 17:56:51,596 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-19 17:56:51,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:56:51 BoogieIcfgContainer [2020-10-19 17:56:51,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 17:56:51,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 17:56:51,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 17:56:51,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 17:56:51,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 05:56:49" (1/3) ... [2020-10-19 17:56:51,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4730bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:56:51, skipping insertion in model container [2020-10-19 17:56:51,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:56:50" (2/3) ... [2020-10-19 17:56:51,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4730bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:56:51, skipping insertion in model container [2020-10-19 17:56:51,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:56:51" (3/3) ... [2020-10-19 17:56:51,608 INFO L111 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca-1.i [2020-10-19 17:56:51,619 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 17:56:51,626 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2020-10-19 17:56:51,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2020-10-19 17:56:51,658 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 17:56:51,658 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 17:56:51,658 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 17:56:51,658 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 17:56:51,658 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 17:56:51,658 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 17:56:51,658 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 17:56:51,659 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 17:56:51,675 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-10-19 17:56:51,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:56:51,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:51,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:51,687 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:56:51,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:51,693 INFO L82 PathProgramCache]: Analyzing trace with hash -435715572, now seen corresponding path program 1 times [2020-10-19 17:56:51,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:51,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962756209] [2020-10-19 17:56:51,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:51,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 17:56:51,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:51,967 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 17:56:51,968 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:51,979 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:51,980 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:51,980 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-19 17:56:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:51,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:52,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:52,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962756209] [2020-10-19 17:56:52,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:56:52,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-19 17:56:52,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036426255] [2020-10-19 17:56:52,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:56:52,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:52,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:56:52,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:56:52,188 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 6 states. [2020-10-19 17:56:52,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:52,920 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2020-10-19 17:56:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:56:52,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-19 17:56:52,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:52,933 INFO L225 Difference]: With dead ends: 74 [2020-10-19 17:56:52,933 INFO L226 Difference]: Without dead ends: 69 [2020-10-19 17:56:52,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-19 17:56:52,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-19 17:56:52,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 50. [2020-10-19 17:56:52,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-19 17:56:52,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2020-10-19 17:56:52,980 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 10 [2020-10-19 17:56:52,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:52,981 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2020-10-19 17:56:52,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:56:52,981 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2020-10-19 17:56:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:56:52,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:52,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:53,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 17:56:53,194 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:56:53,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:53,195 INFO L82 PathProgramCache]: Analyzing trace with hash -435715573, now seen corresponding path program 1 times [2020-10-19 17:56:53,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:53,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021947076] [2020-10-19 17:56:53,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:53,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 17:56:53,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:53,331 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 17:56:53,332 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:53,335 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:53,336 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:53,336 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:56:53,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:53,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:53,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:53,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021947076] [2020-10-19 17:56:53,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:56:53,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 17:56:53,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965620031] [2020-10-19 17:56:53,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 17:56:53,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:53,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 17:56:53,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 17:56:53,364 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 3 states. [2020-10-19 17:56:53,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:53,491 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2020-10-19 17:56:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 17:56:53,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-19 17:56:53,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:53,494 INFO L225 Difference]: With dead ends: 49 [2020-10-19 17:56:53,494 INFO L226 Difference]: Without dead ends: 49 [2020-10-19 17:56:53,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 17:56:53,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-19 17:56:53,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-19 17:56:53,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-19 17:56:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2020-10-19 17:56:53,502 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 10 [2020-10-19 17:56:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:53,502 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2020-10-19 17:56:53,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 17:56:53,503 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-10-19 17:56:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:56:53,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:53,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:53,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 17:56:53,717 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:56:53,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:53,719 INFO L82 PathProgramCache]: Analyzing trace with hash -2089908068, now seen corresponding path program 1 times [2020-10-19 17:56:53,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:53,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512977458] [2020-10-19 17:56:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:53,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:56:53,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:53,829 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 17:56:53,829 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:53,832 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:53,832 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:53,833 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:56:53,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:53,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:53,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512977458] [2020-10-19 17:56:53,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:56:53,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 17:56:53,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830419935] [2020-10-19 17:56:53,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 17:56:53,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:53,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 17:56:53,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 17:56:53,869 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 5 states. [2020-10-19 17:56:54,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:54,151 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2020-10-19 17:56:54,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:56:54,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-19 17:56:54,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:54,153 INFO L225 Difference]: With dead ends: 43 [2020-10-19 17:56:54,153 INFO L226 Difference]: Without dead ends: 43 [2020-10-19 17:56:54,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:56:54,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-19 17:56:54,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-19 17:56:54,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-19 17:56:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-19 17:56:54,160 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 14 [2020-10-19 17:56:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:54,160 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-19 17:56:54,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 17:56:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-19 17:56:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:56:54,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:54,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:54,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 17:56:54,375 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:56:54,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:54,375 INFO L82 PathProgramCache]: Analyzing trace with hash -2089908067, now seen corresponding path program 1 times [2020-10-19 17:56:54,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:54,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343477448] [2020-10-19 17:56:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:54,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:56:54,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:54,513 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-19 17:56:54,513 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:54,531 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:54,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343477448] [2020-10-19 17:56:54,535 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:54,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [15730778] [2020-10-19 17:56:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:54,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:56:54,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:54,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:54,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:56:54,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-19 17:56:54,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147565556] [2020-10-19 17:56:54,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:56:54,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:54,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:56:54,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:56:54,814 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 6 states. [2020-10-19 17:56:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:54,906 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-10-19 17:56:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:56:54,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-19 17:56:54,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:54,908 INFO L225 Difference]: With dead ends: 45 [2020-10-19 17:56:54,909 INFO L226 Difference]: Without dead ends: 45 [2020-10-19 17:56:54,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-19 17:56:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-19 17:56:54,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-10-19 17:56:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-19 17:56:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-19 17:56:54,914 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2020-10-19 17:56:54,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:54,914 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-19 17:56:54,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:56:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-19 17:56:54,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:56:54,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:54,916 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:55,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:55,322 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:56:55,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:55,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1290110897, now seen corresponding path program 1 times [2020-10-19 17:56:55,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:55,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138585096] [2020-10-19 17:56:55,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:55,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:56:55,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:55,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:55,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138585096] [2020-10-19 17:56:55,499 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:55,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2017510365] [2020-10-19 17:56:55,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:55,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:56:55,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:55,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:55,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:55,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-19 17:56:55,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948943421] [2020-10-19 17:56:55,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 17:56:55,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:55,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 17:56:55,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:56:55,722 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 8 states. [2020-10-19 17:56:55,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:55,813 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2020-10-19 17:56:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:56:55,814 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-19 17:56:55,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:55,815 INFO L225 Difference]: With dead ends: 51 [2020-10-19 17:56:55,815 INFO L226 Difference]: Without dead ends: 51 [2020-10-19 17:56:55,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:56:55,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-19 17:56:55,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2020-10-19 17:56:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-19 17:56:55,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-19 17:56:55,821 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 14 [2020-10-19 17:56:55,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:55,821 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-19 17:56:55,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 17:56:55,822 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-19 17:56:55,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:56:55,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:55,822 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:56,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:56,236 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:56:56,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:56,236 INFO L82 PathProgramCache]: Analyzing trace with hash -2099457523, now seen corresponding path program 1 times [2020-10-19 17:56:56,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:56,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910177749] [2020-10-19 17:56:56,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:56,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 17:56:56,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:56,346 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-19 17:56:56,347 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:56,369 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:56,369 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:56,369 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:56,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:56,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910177749] [2020-10-19 17:56:56,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:56,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-19 17:56:56,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747552757] [2020-10-19 17:56:56,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:56:56,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:56,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:56:56,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:56:56,835 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 10 states. [2020-10-19 17:56:57,179 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-19 17:56:57,350 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-19 17:56:58,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:58,077 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-10-19 17:56:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 17:56:58,079 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-19 17:56:58,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:58,082 INFO L225 Difference]: With dead ends: 67 [2020-10-19 17:56:58,082 INFO L226 Difference]: Without dead ends: 67 [2020-10-19 17:56:58,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-10-19 17:56:58,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-19 17:56:58,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2020-10-19 17:56:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-19 17:56:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-10-19 17:56:58,090 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 14 [2020-10-19 17:56:58,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:58,090 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-10-19 17:56:58,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:56:58,090 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-10-19 17:56:58,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 17:56:58,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:58,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:58,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 17:56:58,295 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:56:58,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:58,296 INFO L82 PathProgramCache]: Analyzing trace with hash 906251170, now seen corresponding path program 1 times [2020-10-19 17:56:58,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:58,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638672831] [2020-10-19 17:56:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:58,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:56:58,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:58,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:56:58,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:56:58,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638672831] [2020-10-19 17:56:58,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:56:58,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-19 17:56:58,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949722963] [2020-10-19 17:56:58,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 17:56:58,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:58,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 17:56:58,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:56:58,446 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 8 states. [2020-10-19 17:56:58,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:58,550 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2020-10-19 17:56:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:56:58,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-19 17:56:58,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:58,553 INFO L225 Difference]: With dead ends: 67 [2020-10-19 17:56:58,553 INFO L226 Difference]: Without dead ends: 67 [2020-10-19 17:56:58,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-19 17:56:58,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-19 17:56:58,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2020-10-19 17:56:58,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-19 17:56:58,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2020-10-19 17:56:58,560 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 18 [2020-10-19 17:56:58,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:58,561 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2020-10-19 17:56:58,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 17:56:58,561 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2020-10-19 17:56:58,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 17:56:58,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:58,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:58,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-19 17:56:58,777 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:56:58,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:58,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1164416608, now seen corresponding path program 1 times [2020-10-19 17:56:58,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:58,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896327089] [2020-10-19 17:56:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:58,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 17:56:58,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:58,900 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-19 17:56:58,900 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:58,917 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:58,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896327089] [2020-10-19 17:56:58,919 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:58,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [281895009] [2020-10-19 17:56:58,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:59,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 17:56:59,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:59,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:59,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:59,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:59,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2020-10-19 17:56:59,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316862596] [2020-10-19 17:56:59,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-19 17:56:59,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:59,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 17:56:59,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-19 17:56:59,329 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand 13 states. [2020-10-19 17:56:59,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:59,689 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2020-10-19 17:56:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 17:56:59,690 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 18 [2020-10-19 17:56:59,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:59,694 INFO L225 Difference]: With dead ends: 72 [2020-10-19 17:56:59,694 INFO L226 Difference]: Without dead ends: 72 [2020-10-19 17:56:59,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-10-19 17:56:59,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-19 17:56:59,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2020-10-19 17:56:59,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-19 17:56:59,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2020-10-19 17:56:59,700 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 18 [2020-10-19 17:56:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:59,700 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2020-10-19 17:56:59,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-19 17:56:59,701 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2020-10-19 17:56:59,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 17:56:59,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:59,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:57:00,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 mathsat -unsat_core_generation=3 [2020-10-19 17:57:00,105 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:57:00,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:57:00,105 INFO L82 PathProgramCache]: Analyzing trace with hash -971749880, now seen corresponding path program 1 times [2020-10-19 17:57:00,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:57:00,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909390749] [2020-10-19 17:57:00,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-19 17:57:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:57:00,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 17:57:00,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:57:00,199 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 17:57:00,200 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:57:00,202 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:57:00,202 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:57:00,202 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:57:00,261 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:57:00,261 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-10-19 17:57:00,262 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:57:00,281 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-19 17:57:00,283 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:57:00,287 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 17:57:00,287 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2020-10-19 17:57:00,289 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:57:00,302 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:57:00,317 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:57:00,333 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:57:00,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:57:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:57:00,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:57:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:57:04,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909390749] [2020-10-19 17:57:04,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:57:04,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2020-10-19 17:57:04,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186978991] [2020-10-19 17:57:04,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 17:57:04,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:57:04,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 17:57:04,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=49, Unknown=2, NotChecked=0, Total=72 [2020-10-19 17:57:04,493 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand 9 states. [2020-10-19 17:57:04,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:57:04,850 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2020-10-19 17:57:04,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:57:04,851 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-19 17:57:04,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:57:04,854 INFO L225 Difference]: With dead ends: 63 [2020-10-19 17:57:04,854 INFO L226 Difference]: Without dead ends: 48 [2020-10-19 17:57:04,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=34, Invalid=74, Unknown=2, NotChecked=0, Total=110 [2020-10-19 17:57:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-19 17:57:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-19 17:57:04,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-19 17:57:04,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-10-19 17:57:04,868 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 20 [2020-10-19 17:57:04,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:57:04,869 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-10-19 17:57:04,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 17:57:04,869 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-10-19 17:57:04,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 17:57:04,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:57:04,871 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:57:05,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-19 17:57:05,083 INFO L429 AbstractCegarLoop]: === Iteration 10 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr8REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION]=== [2020-10-19 17:57:05,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:57:05,084 INFO L82 PathProgramCache]: Analyzing trace with hash 617482915, now seen corresponding path program 2 times [2020-10-19 17:57:05,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:57:05,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619140422] [2020-10-19 17:57:05,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-19 17:57:05,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 17:57:05,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:57:05,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:57:05,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:57:05,219 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-19 17:57:05,219 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:57:05,237 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:57:05,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619140422] [2020-10-19 17:57:05,238 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:57:05,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1037842971] [2020-10-19 17:57:05,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:57:05,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 17:57:05,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:57:05,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:57:05,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:57:05,452 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-19 17:57:05,453 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:57:05,467 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:57:05,469 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:57:05,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981068575] [2020-10-19 17:57:05,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 17:57:05,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 17:57:05,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:57:05,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:57:05,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:57:05,572 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-19 17:57:05,572 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:57:05,586 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:57:05,588 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:57:05,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:57:05,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 17:57:05,589 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 17:57:05,589 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 17:57:06,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:57:06,211 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 17:57:06,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 05:57:06 BoogieIcfgContainer [2020-10-19 17:57:06,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 17:57:06,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 17:57:06,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 17:57:06,212 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 17:57:06,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:56:51" (3/4) ... [2020-10-19 17:57:06,215 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 17:57:06,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 17:57:06,218 INFO L168 Benchmark]: Toolchain (without parser) took 16410.13 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.2 MB). Free memory was 960.0 MB in the beginning and 1.2 GB in the end (delta: -279.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2020-10-19 17:57:06,218 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:57:06,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 884.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -159.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2020-10-19 17:57:06,220 INFO L168 Benchmark]: Boogie Preprocessor took 73.15 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-10-19 17:57:06,220 INFO L168 Benchmark]: RCFGBuilder took 826.11 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2020-10-19 17:57:06,221 INFO L168 Benchmark]: TraceAbstraction took 14611.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 150.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -183.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:57:06,221 INFO L168 Benchmark]: Witness Printer took 4.00 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:57:06,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 884.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -159.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.15 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 826.11 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14611.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 150.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -183.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 4.00 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 517]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L522] int array_size = __VERIFIER_nondet_int(); [L523] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) [L526] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L528] int i = 0; [L528] COND TRUE i < array_size [L530] numbers[i] = __VERIFIER_nondet_int() [L528] i++ [L528] COND TRUE i < array_size [L530] numbers[i] = __VERIFIER_nondet_int() [L528] i++ [L528] COND FALSE !(i < array_size) [L532] CALL sort(numbers, array_size) [L513] int pass; [L514] int i; [L515] pass=1 [L515] COND TRUE pass < n [L516] i=0 [L516] COND TRUE i < n - pass [L517] x[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 70 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 14.5s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 348 SDtfs, 350 SDslu, 986 SDs, 0 SdLazy, 488 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 230 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 46 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 246 ConstructedInterpolants, 8 QuantifiedInterpolants, 19505 SizeOfPredicates, 26 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 6/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...