./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/bubblesort-alloca-2.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 a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 ............................................................................................................................. 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 -Xmx15G -Xms4m -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/bubblesort-alloca-2.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 a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:48:31,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:48:31,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:48:31,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:48:31,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:48:31,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:48:31,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:48:31,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:48:31,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:48:31,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:48:31,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:48:31,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:48:31,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:48:31,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:48:31,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:48:31,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:48:31,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:48:31,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:48:31,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:48:31,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:48:31,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:48:31,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:48:31,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:48:31,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:48:31,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:48:31,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:48:31,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:48:31,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:48:31,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:48:31,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:48:31,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:48:31,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:48:31,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:48:31,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:48:31,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:48:31,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:48:31,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:48:31,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:48:31,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:48:31,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:48:31,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:48:31,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:48:31,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:48:31,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:48:31,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:48:31,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:48:31,478 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:48:31,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:48:31,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:48:31,479 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:48:31,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:48:31,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:48:31,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:48:31,480 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:48:31,480 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:48:31,480 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:48:31,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:48:31,481 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:48:31,481 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:48:31,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:48:31,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:48:31,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:48:31,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:48:31,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:48:31,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:48:31,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:48:31,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:48:31,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:48:31,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:48:31,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:48:31,484 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 -> a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 [2020-10-20 05:48:31,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:48:31,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:48:31,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:48:31,715 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:48:31,716 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:48:31,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2020-10-20 05:48:31,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38826d2c3/0f6a0fe745624e9594c95206aed5c526/FLAG2be114319 [2020-10-20 05:48:32,310 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:48:32,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2020-10-20 05:48:32,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38826d2c3/0f6a0fe745624e9594c95206aed5c526/FLAG2be114319 [2020-10-20 05:48:32,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38826d2c3/0f6a0fe745624e9594c95206aed5c526 [2020-10-20 05:48:32,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:48:32,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:48:32,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:32,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:48:32,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:48:32,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b618fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32, skipping insertion in model container [2020-10-20 05:48:32,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:48:32,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:33,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:33,127 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) [2020-10-20 05:48:33,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e551500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:33, skipping insertion in model container [2020-10-20 05:48:33,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:33,130 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:48:33,133 INFO L168 Benchmark]: Toolchain (without parser) took 532.58 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 11.8 MB in the beginning and 28.3 MB in the end (delta: -16.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,134 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 36.7 MB. Free memory was 16.1 MB in the beginning and 16.0 MB in the end (delta: 76.2 kB). Peak memory consumption was 76.2 kB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.82 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 10.9 MB in the beginning and 28.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 36.7 MB. Free memory was 16.1 MB in the beginning and 16.0 MB in the end (delta: 76.2 kB). Peak memory consumption was 76.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 523.82 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 10.9 MB in the beginning and 28.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 530]: 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 0.1.25-9a8b2e8 [2020-10-20 05:48:35,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:48:35,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:48:35,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:48:35,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:48:35,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:48:35,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:48:35,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:48:35,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:48:35,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:48:35,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:48:35,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:48:35,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:48:35,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:48:35,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:48:35,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:48:35,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:48:35,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:48:35,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:48:35,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:48:35,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:48:35,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:48:35,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:48:35,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:48:35,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:48:35,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:48:35,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:48:35,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:48:35,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:48:35,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:48:35,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:48:35,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:48:35,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:48:35,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:48:35,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:48:35,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:48:35,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:48:35,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:48:35,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:48:35,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:48:35,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:48:35,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:48:35,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:48:35,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:48:35,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:48:35,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:48:35,276 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:48:35,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:48:35,276 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:48:35,277 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:48:35,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:48:35,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:48:35,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:48:35,279 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:48:35,279 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:48:35,279 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:48:35,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:48:35,280 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:48:35,280 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:48:35,280 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:48:35,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:48:35,281 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:48:35,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:48:35,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:48:35,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:48:35,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:48:35,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:48:35,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:48:35,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:48:35,283 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:48:35,283 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:48:35,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:48:35,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:48:35,284 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 -> a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 [2020-10-20 05:48:35,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:48:35,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:48:35,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:48:35,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:48:35,538 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:48:35,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2020-10-20 05:48:35,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625896ad5/15fe6762cb0c4d9cb42605ff11f2fbca/FLAGc5b1d8d58 [2020-10-20 05:48:36,195 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:48:36,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2020-10-20 05:48:36,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625896ad5/15fe6762cb0c4d9cb42605ff11f2fbca/FLAGc5b1d8d58 [2020-10-20 05:48:36,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625896ad5/15fe6762cb0c4d9cb42605ff11f2fbca [2020-10-20 05:48:36,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:48:36,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:48:36,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:36,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:48:36,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:48:36,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@739defb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36, skipping insertion in model container [2020-10-20 05:48:36,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:48:36,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:36,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:36,961 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:48:36,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:37,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:37,007 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:48:37,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:37,151 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:48:37,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37 WrapperNode [2020-10-20 05:48:37,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:37,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:48:37,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:48:37,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:48:37,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:48:37,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:48:37,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:48:37,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:48:37,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (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 [2020-10-20 05:48:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:48:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:48:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:48:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:48:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:48:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:48:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:48:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:48:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure bubbleSort [2020-10-20 05:48:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:48:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:48:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:48:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:48:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:48:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:48:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:48:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:48:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:48:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:48:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:48:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:48:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:48:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:48:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:48:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:48:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:48:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:48:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:48:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:48:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:48:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:48:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:48:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:48:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:48:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:48:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:48:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:48:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:48:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:48:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:48:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:48:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:48:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:48:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:48:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:48:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:48:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:48:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:48:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:48:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:48:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:48:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:48:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:48:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:48:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:48:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:48:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:48:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:48:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:48:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:48:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:48:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:48:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:48:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:48:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:48:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:48:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:48:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:48:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:48:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:48:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:48:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:48:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:48:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:48:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:48:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:48:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:48:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:48:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:48:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:48:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:48:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:48:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:48:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:48:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:48:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:48:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:48:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:48:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:48:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:48:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:48:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:48:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:48:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:48:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:48:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:48:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:48:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:48:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:48:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:48:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:48:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:48:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:48:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:48:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:48:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:48:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:48:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:48:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:48:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:48:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:48:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:48:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:48:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:48:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:48:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:48:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:48:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:48:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure bubbleSort [2020-10-20 05:48:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:48:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:48:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:48:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:48:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:48:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:48:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:48:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:48:38,014 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:48:38,015 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-20 05:48:38,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:38 BoogieIcfgContainer [2020-10-20 05:48:38,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:48:38,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:48:38,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:48:38,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:48:38,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:48:36" (1/3) ... [2020-10-20 05:48:38,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc15c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:48:38, skipping insertion in model container [2020-10-20 05:48:38,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (2/3) ... [2020-10-20 05:48:38,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc15c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:48:38, skipping insertion in model container [2020-10-20 05:48:38,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:38" (3/3) ... [2020-10-20 05:48:38,026 INFO L111 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca-2.i [2020-10-20 05:48:38,039 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:48:38,047 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2020-10-20 05:48:38,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2020-10-20 05:48:38,080 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:48:38,080 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:48:38,080 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:48:38,080 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:48:38,080 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:48:38,080 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:48:38,080 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:48:38,081 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:48:38,095 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-10-20 05:48:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:48:38,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:38,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:38,106 INFO L429 AbstractCegarLoop]: === Iteration 1 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:38,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:38,110 INFO L82 PathProgramCache]: Analyzing trace with hash -435715572, now seen corresponding path program 1 times [2020-10-20 05:48:38,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:38,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368005343] [2020-10-20 05:48:38,121 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 [2020-10-20 05:48:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:38,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:48:38,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:38,404 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 [2020-10-20 05:48:38,404 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:38,417 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:38,418 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:38,418 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-20 05:48:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:38,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:38,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:38,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368005343] [2020-10-20 05:48:38,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:38,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 05:48:38,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619212865] [2020-10-20 05:48:38,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:48:38,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:38,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:48:38,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:48:38,608 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 6 states. [2020-10-20 05:48:39,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:39,266 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2020-10-20 05:48:39,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:48:39,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-20 05:48:39,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:39,280 INFO L225 Difference]: With dead ends: 74 [2020-10-20 05:48:39,280 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 05:48:39,282 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 [2020-10-20 05:48:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 05:48:39,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 50. [2020-10-20 05:48:39,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-20 05:48:39,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2020-10-20 05:48:39,325 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 10 [2020-10-20 05:48:39,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:39,326 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2020-10-20 05:48:39,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:48:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2020-10-20 05:48:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:48:39,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:39,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:39,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:48:39,538 INFO L429 AbstractCegarLoop]: === Iteration 2 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:39,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:39,539 INFO L82 PathProgramCache]: Analyzing trace with hash -435715573, now seen corresponding path program 1 times [2020-10-20 05:48:39,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:39,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518404599] [2020-10-20 05:48:39,540 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 [2020-10-20 05:48:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:39,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:48:39,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:39,659 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 [2020-10-20 05:48:39,659 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:39,662 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:39,663 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:39,663 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:48:39,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:39,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:39,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:39,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518404599] [2020-10-20 05:48:39,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:39,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:48:39,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69901597] [2020-10-20 05:48:39,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:48:39,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:39,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:48:39,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:48:39,684 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 3 states. [2020-10-20 05:48:39,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:39,814 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2020-10-20 05:48:39,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:48:39,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 05:48:39,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:39,816 INFO L225 Difference]: With dead ends: 49 [2020-10-20 05:48:39,816 INFO L226 Difference]: Without dead ends: 49 [2020-10-20 05:48:39,818 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 [2020-10-20 05:48:39,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-20 05:48:39,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-20 05:48:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-20 05:48:39,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2020-10-20 05:48:39,825 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 10 [2020-10-20 05:48:39,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:39,825 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2020-10-20 05:48:39,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:48:39,826 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-10-20 05:48:39,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:48:39,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:39,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:40,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:48:40,041 INFO L429 AbstractCegarLoop]: === Iteration 3 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:40,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:40,042 INFO L82 PathProgramCache]: Analyzing trace with hash -2089784932, now seen corresponding path program 1 times [2020-10-20 05:48:40,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:40,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638814436] [2020-10-20 05:48:40,043 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 [2020-10-20 05:48:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:40,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:48:40,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:40,180 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 [2020-10-20 05:48:40,180 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:40,184 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:40,184 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:40,184 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:48:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:40,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:40,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638814436] [2020-10-20 05:48:40,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:40,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:48:40,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922412077] [2020-10-20 05:48:40,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:48:40,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:40,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:48:40,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:48:40,219 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 5 states. [2020-10-20 05:48:40,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:40,453 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2020-10-20 05:48:40,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:48:40,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-20 05:48:40,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:40,455 INFO L225 Difference]: With dead ends: 43 [2020-10-20 05:48:40,455 INFO L226 Difference]: Without dead ends: 43 [2020-10-20 05:48:40,456 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 [2020-10-20 05:48:40,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-20 05:48:40,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-20 05:48:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-20 05:48:40,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-20 05:48:40,461 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 14 [2020-10-20 05:48:40,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:40,462 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-20 05:48:40,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:48:40,462 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-20 05:48:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:48:40,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:40,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:40,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:48:40,665 INFO L429 AbstractCegarLoop]: === Iteration 4 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:40,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:40,666 INFO L82 PathProgramCache]: Analyzing trace with hash -2089784931, now seen corresponding path program 1 times [2020-10-20 05:48:40,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:40,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965956291] [2020-10-20 05:48:40,667 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 [2020-10-20 05:48:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:40,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:48:40,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:40,835 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 [2020-10-20 05:48:40,836 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:40,853 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:40,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965956291] [2020-10-20 05:48:40,857 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:40,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1985049057] [2020-10-20 05:48:40,857 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 [2020-10-20 05:48:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:41,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:48:41,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:41,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:41,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:41,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 05:48:41,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180933904] [2020-10-20 05:48:41,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:48:41,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:41,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:48:41,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:48:41,119 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 6 states. [2020-10-20 05:48:41,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:41,221 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-10-20 05:48:41,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:48:41,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 05:48:41,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:41,224 INFO L225 Difference]: With dead ends: 45 [2020-10-20 05:48:41,224 INFO L226 Difference]: Without dead ends: 45 [2020-10-20 05:48:41,225 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 [2020-10-20 05:48:41,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-20 05:48:41,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-10-20 05:48:41,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-20 05:48:41,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-20 05:48:41,230 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2020-10-20 05:48:41,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:41,230 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-20 05:48:41,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:48:41,231 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-20 05:48:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:48:41,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:41,232 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:41,633 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 [2020-10-20 05:48:41,636 INFO L429 AbstractCegarLoop]: === Iteration 5 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:41,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:41,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1290110897, now seen corresponding path program 1 times [2020-10-20 05:48:41,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:41,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932631240] [2020-10-20 05:48:41,638 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 [2020-10-20 05:48:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:41,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:48:41,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:41,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:41,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:41,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932631240] [2020-10-20 05:48:41,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:41,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-20 05:48:41,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829842573] [2020-10-20 05:48:41,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 05:48:41,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:41,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 05:48:41,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:48:41,823 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 8 states. [2020-10-20 05:48:41,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:41,912 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2020-10-20 05:48:41,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:48:41,913 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-20 05:48:41,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:41,914 INFO L225 Difference]: With dead ends: 51 [2020-10-20 05:48:41,914 INFO L226 Difference]: Without dead ends: 51 [2020-10-20 05:48:41,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:48:41,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-20 05:48:41,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2020-10-20 05:48:41,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 05:48:41,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-20 05:48:41,920 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 14 [2020-10-20 05:48:41,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:41,921 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-20 05:48:41,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 05:48:41,921 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-20 05:48:41,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:48:41,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:41,922 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:42,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 05:48:42,123 INFO L429 AbstractCegarLoop]: === Iteration 6 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:42,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:42,124 INFO L82 PathProgramCache]: Analyzing trace with hash -2099457523, now seen corresponding path program 1 times [2020-10-20 05:48:42,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:42,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461306435] [2020-10-20 05:48:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-20 05:48:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:42,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 05:48:42,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:42,253 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 [2020-10-20 05:48:42,253 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:42,273 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:42,273 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:42,274 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:48:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:42,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:42,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461306435] [2020-10-20 05:48:42,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:42,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-20 05:48:42,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872319921] [2020-10-20 05:48:42,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:48:42,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:42,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:48:42,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:48:42,750 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 10 states. [2020-10-20 05:48:43,122 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-20 05:48:43,284 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-20 05:48:43,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:43,991 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-10-20 05:48:43,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 05:48:43,993 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-20 05:48:43,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:43,996 INFO L225 Difference]: With dead ends: 67 [2020-10-20 05:48:43,996 INFO L226 Difference]: Without dead ends: 67 [2020-10-20 05:48:43,997 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 [2020-10-20 05:48:43,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-20 05:48:44,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2020-10-20 05:48:44,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 05:48:44,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-10-20 05:48:44,004 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 14 [2020-10-20 05:48:44,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:44,005 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-10-20 05:48:44,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:48:44,005 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-10-20 05:48:44,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 05:48:44,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:44,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:44,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-20 05:48:44,207 INFO L429 AbstractCegarLoop]: === Iteration 7 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:44,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:44,208 INFO L82 PathProgramCache]: Analyzing trace with hash 906374306, now seen corresponding path program 1 times [2020-10-20 05:48:44,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:44,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692684021] [2020-10-20 05:48:44,210 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 [2020-10-20 05:48:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:44,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 05:48:44,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:44,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:44,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692684021] [2020-10-20 05:48:44,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:44,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-20 05:48:44,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764080157] [2020-10-20 05:48:44,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:48:44,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:44,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:48:44,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:48:44,420 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 10 states. [2020-10-20 05:48:44,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:44,740 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2020-10-20 05:48:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 05:48:44,741 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-20 05:48:44,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:44,742 INFO L225 Difference]: With dead ends: 70 [2020-10-20 05:48:44,743 INFO L226 Difference]: Without dead ends: 70 [2020-10-20 05:48:44,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-20 05:48:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-20 05:48:44,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2020-10-20 05:48:44,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-20 05:48:44,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2020-10-20 05:48:44,750 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 18 [2020-10-20 05:48:44,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:44,751 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2020-10-20 05:48:44,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:48:44,751 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2020-10-20 05:48:44,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 05:48:44,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:44,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:44,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-20 05:48:44,955 INFO L429 AbstractCegarLoop]: === Iteration 8 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:44,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:44,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1164539744, now seen corresponding path program 1 times [2020-10-20 05:48:44,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:44,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211572599] [2020-10-20 05:48:44,957 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 [2020-10-20 05:48:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:45,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 05:48:45,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:45,085 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 [2020-10-20 05:48:45,085 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:45,105 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:45,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211572599] [2020-10-20 05:48:45,106 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:45,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1366991061] [2020-10-20 05:48:45,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:48:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:45,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 05:48:45,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:45,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:45,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:45,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:45,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:45,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-10-20 05:48:45,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461794719] [2020-10-20 05:48:45,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-20 05:48:45,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:45,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-20 05:48:45,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-20 05:48:45,718 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand 16 states. [2020-10-20 05:48:46,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:46,384 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2020-10-20 05:48:46,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 05:48:46,385 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2020-10-20 05:48:46,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:46,388 INFO L225 Difference]: With dead ends: 78 [2020-10-20 05:48:46,388 INFO L226 Difference]: Without dead ends: 78 [2020-10-20 05:48:46,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2020-10-20 05:48:46,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-20 05:48:46,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2020-10-20 05:48:46,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-20 05:48:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2020-10-20 05:48:46,395 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 18 [2020-10-20 05:48:46,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:46,396 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2020-10-20 05:48:46,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-20 05:48:46,396 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2020-10-20 05:48:46,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 05:48:46,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:46,397 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:46,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:48:46,811 INFO L429 AbstractCegarLoop]: === Iteration 9 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:46,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:46,812 INFO L82 PathProgramCache]: Analyzing trace with hash 617606051, now seen corresponding path program 2 times [2020-10-20 05:48:46,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:46,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115631217] [2020-10-20 05:48:46,812 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 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-20 05:48:46,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 05:48:46,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:48:46,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:48:46,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:46,926 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 [2020-10-20 05:48:46,926 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:46,942 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:46,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115631217] [2020-10-20 05:48:46,944 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:46,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1278733139] [2020-10-20 05:48:46,944 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 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:48:47,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 05:48:47,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:48:47,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:48:47,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:47,132 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 [2020-10-20 05:48:47,133 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:47,147 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:47,148 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:47,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180403758] [2020-10-20 05:48:47,149 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 05:48:47,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 05:48:47,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:48:47,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:48:47,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:47,256 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 [2020-10-20 05:48:47,257 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:47,275 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:47,276 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:47,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:47,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 05:48:47,277 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 05:48:47,277 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:48:47,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt --rewrite-divk,12 mathsat -unsat_core_generation=3 [2020-10-20 05:48:47,895 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 05:48:47,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:48:47 BoogieIcfgContainer [2020-10-20 05:48:47,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:48:47,896 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:48:47,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:48:47,897 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:48:47,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:38" (3/4) ... [2020-10-20 05:48:47,900 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:48:47,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:48:47,901 INFO L168 Benchmark]: Toolchain (without parser) took 11437.78 ms. Allocated memory was 33.6 MB in the beginning and 74.4 MB in the end (delta: 40.9 MB). Free memory was 11.1 MB in the beginning and 19.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 32.3 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:47,902 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 31.5 MB. Free memory was 6.4 MB in the beginning and 6.4 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. [2020-10-20 05:48:47,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.36 ms. Allocated memory was 33.6 MB in the beginning and 44.0 MB in the end (delta: 10.5 MB). Free memory was 10.2 MB in the beginning and 21.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:47,904 INFO L168 Benchmark]: Boogie Preprocessor took 70.91 ms. Allocated memory is still 44.0 MB. Free memory was 21.0 MB in the beginning and 17.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:47,905 INFO L168 Benchmark]: RCFGBuilder took 791.72 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 17.9 MB in the beginning and 21.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:47,906 INFO L168 Benchmark]: TraceAbstraction took 9877.41 ms. Allocated memory was 46.1 MB in the beginning and 74.4 MB in the end (delta: 28.3 MB). Free memory was 20.6 MB in the beginning and 20.6 MB in the end (delta: 34.3 kB). Peak memory consumption was 28.3 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:47,906 INFO L168 Benchmark]: Witness Printer took 3.89 ms. Allocated memory is still 74.4 MB. Free memory was 20.6 MB in the beginning and 19.6 MB in the end (delta: 904.9 kB). Peak memory consumption was 904.9 kB. Max. memory is 14.3 GB. [2020-10-20 05:48:47,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 31.5 MB. Free memory was 6.4 MB in the beginning and 6.4 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 684.36 ms. Allocated memory was 33.6 MB in the beginning and 44.0 MB in the end (delta: 10.5 MB). Free memory was 10.2 MB in the beginning and 21.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 70.91 ms. Allocated memory is still 44.0 MB. Free memory was 21.0 MB in the beginning and 17.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 791.72 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 17.9 MB in the beginning and 21.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 9877.41 ms. Allocated memory was 46.1 MB in the beginning and 74.4 MB in the end (delta: 28.3 MB). Free memory was 20.6 MB in the beginning and 20.6 MB in the end (delta: 34.3 kB). Peak memory consumption was 28.3 MB. Max. memory is 14.3 GB. * Witness Printer took 3.89 ms. Allocated memory is still 74.4 MB. Free memory was 20.6 MB in the beginning and 19.6 MB in the end (delta: 904.9 kB). Peak memory consumption was 904.9 kB. Max. memory is 14.3 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: [L526] int array_size = __VERIFIER_nondet_int(); [L527] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) [L530] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L532] int k = 0; [L532] COND TRUE k < array_size [L534] numbers[k] = __VERIFIER_nondet_int() [L532] k++ [L532] COND TRUE k < array_size [L534] numbers[k] = __VERIFIER_nondet_int() [L532] k++ [L532] COND FALSE !(k < array_size) [L537] CALL bubbleSort(numbers, array_size) [L514] int i, j, temp; [L515] i = (array_size - 1) [L515] COND TRUE i >= 0 [L516] j = 1 [L516] COND TRUE j <= i [L517] numbers[j-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 70 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 9.8s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 317 SDtfs, 310 SDslu, 879 SDs, 0 SdLazy, 463 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred 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, 8 MinimizatonAttempts, 49 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 208 ConstructedInterpolants, 1 QuantifiedInterpolants, 14152 SizeOfPredicates, 29 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 4/12 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...