./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/verifythis/tree_del_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/verifythis/tree_del_rec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42b3e156f78fe4fcf6b35cfd49f93ee3220cf061 ........................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/verifythis/tree_del_rec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42b3e156f78fe4fcf6b35cfd49f93ee3220cf061 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:48:33,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:48:33,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:48:33,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:48:33,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:48:33,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:48:33,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:48:33,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:48:33,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:48:33,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:48:33,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:48:33,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:48:33,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:48:33,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:48:33,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:48:33,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:48:33,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:48:33,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:48:33,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:48:33,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:48:33,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:48:33,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:48:33,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:48:33,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:48:33,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:48:33,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:48:33,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:48:33,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:48:33,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:48:33,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:48:33,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:48:33,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:48:33,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:48:33,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:48:33,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:48:33,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:48:33,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:48:33,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:48:33,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:48:33,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:48:33,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:48:33,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 02:48:33,856 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:48:33,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:48:33,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:48:33,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:48:33,858 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:48:33,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:48:33,859 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:48:33,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:48:33,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:48:33,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:48:33,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:48:33,860 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:48:33,861 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:48:33,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:48:33,861 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:48:33,861 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:48:33,862 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:48:33,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:48:33,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:48:33,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:48:33,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:48:33,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:48:33,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:48:33,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:48:33,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:48:33,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:48:33,865 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-memcleanup) ) 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 -> 42b3e156f78fe4fcf6b35cfd49f93ee3220cf061 [2019-11-28 02:48:34,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:48:34,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:48:34,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:48:34,209 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:48:34,210 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:48:34,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-28 02:48:34,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b886d3f/eada8b534cd74417ba7b3ceb368a9dd3/FLAG07b1e499e [2019-11-28 02:48:34,776 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:48:34,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-28 02:48:34,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b886d3f/eada8b534cd74417ba7b3ceb368a9dd3/FLAG07b1e499e [2019-11-28 02:48:35,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b886d3f/eada8b534cd74417ba7b3ceb368a9dd3 [2019-11-28 02:48:35,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:48:35,095 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:48:35,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:35,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:48:35,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:48:35,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:35" (1/1) ... [2019-11-28 02:48:35,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad45a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:35, skipping insertion in model container [2019-11-28 02:48:35,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:35" (1/1) ... [2019-11-28 02:48:35,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:48:35,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:35,345 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:35,349 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:35,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:35,391 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) [2019-11-28 02:48:35,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75b46684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:35, skipping insertion in model container [2019-11-28 02:48:35,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:35,392 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 02:48:35,395 INFO L168 Benchmark]: Toolchain (without parser) took 299.53 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:35,396 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:48:35,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.97 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:35,399 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.97 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 23]: 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 0.1.24-30f4e4a [2019-11-28 02:48:37,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:48:37,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:48:37,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:48:37,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:48:37,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:48:37,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:48:37,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:48:37,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:48:37,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:48:37,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:48:37,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:48:37,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:48:37,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:48:37,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:48:37,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:48:37,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:48:37,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:48:37,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:48:37,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:48:37,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:48:37,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:48:37,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:48:37,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:48:37,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:48:37,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:48:37,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:48:37,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:48:37,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:48:37,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:48:37,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:48:37,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:48:37,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:48:37,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:48:37,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:48:37,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:48:37,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:48:37,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:48:37,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:48:37,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:48:37,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:48:37,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-11-28 02:48:37,375 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:48:37,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:48:37,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:48:37,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:48:37,381 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:48:37,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:48:37,381 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:48:37,384 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:48:37,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:48:37,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:48:37,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:48:37,385 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:48:37,385 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:48:37,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:48:37,386 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:48:37,386 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 02:48:37,386 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 02:48:37,388 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:48:37,389 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:48:37,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:48:37,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:48:37,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:48:37,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:48:37,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:48:37,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:48:37,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:48:37,392 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 02:48:37,392 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 02:48:37,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 02:48:37,393 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-memcleanup) ) 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 -> 42b3e156f78fe4fcf6b35cfd49f93ee3220cf061 [2019-11-28 02:48:37,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:48:37,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:48:37,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:48:37,733 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:48:37,735 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:48:37,735 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-28 02:48:37,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ffeda2c3/4db8dd2209b048a3a92c9ac6a5c8ace2/FLAGe1f9d1b40 [2019-11-28 02:48:38,254 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:48:38,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-28 02:48:38,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ffeda2c3/4db8dd2209b048a3a92c9ac6a5c8ace2/FLAGe1f9d1b40 [2019-11-28 02:48:38,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ffeda2c3/4db8dd2209b048a3a92c9ac6a5c8ace2 [2019-11-28 02:48:38,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:48:38,654 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:48:38,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:38,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:48:38,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:48:38,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:38" (1/1) ... [2019-11-28 02:48:38,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231de4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:38, skipping insertion in model container [2019-11-28 02:48:38,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:38" (1/1) ... [2019-11-28 02:48:38,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:48:38,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:38,903 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:38,906 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:38,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:39,014 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 02:48:39,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:39,036 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:39,042 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:39,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:39,062 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:48:39,078 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:39,080 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:39,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:39,114 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:48:39,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39 WrapperNode [2019-11-28 02:48:39,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:39,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:48:39,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:48:39,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:48:39,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39" (1/1) ... [2019-11-28 02:48:39,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39" (1/1) ... [2019-11-28 02:48:39,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39" (1/1) ... [2019-11-28 02:48:39,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39" (1/1) ... [2019-11-28 02:48:39,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39" (1/1) ... [2019-11-28 02:48:39,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39" (1/1) ... [2019-11-28 02:48:39,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39" (1/1) ... [2019-11-28 02:48:39,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:48:39,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:48:39,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:48:39,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:48:39,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39" (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 [2019-11-28 02:48:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:48:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:48:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-28 02:48:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2019-11-28 02:48:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure min [2019-11-28 02:48:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_del [2019-11-28 02:48:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_inorder [2019-11-28 02:48:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure size [2019-11-28 02:48:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2019-11-28 02:48:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:48:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-28 02:48:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:48:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:48:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:48:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:48:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-28 02:48:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-28 02:48:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:48:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-28 02:48:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2019-11-28 02:48:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:48:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 02:48:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:48:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure min [2019-11-28 02:48:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 02:48:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:48:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure tree_del [2019-11-28 02:48:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:48:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure tree_inorder [2019-11-28 02:48:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure size [2019-11-28 02:48:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure task [2019-11-28 02:48:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 02:48:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-28 02:48:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:48:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:48:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:48:40,144 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:48:40,144 INFO L297 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 02:48:40,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:40 BoogieIcfgContainer [2019-11-28 02:48:40,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:48:40,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:48:40,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:48:40,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:48:40,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:48:38" (1/3) ... [2019-11-28 02:48:40,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f2fae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:40, skipping insertion in model container [2019-11-28 02:48:40,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:39" (2/3) ... [2019-11-28 02:48:40,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f2fae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:40, skipping insertion in model container [2019-11-28 02:48:40,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:40" (3/3) ... [2019-11-28 02:48:40,155 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_del_rec.c [2019-11-28 02:48:40,164 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:48:40,172 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2019-11-28 02:48:40,185 INFO L249 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2019-11-28 02:48:40,200 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:48:40,200 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:48:40,200 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:48:40,201 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:48:40,201 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:48:40,201 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:48:40,201 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:48:40,201 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:48:40,224 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2019-11-28 02:48:40,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:48:40,234 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:40,235 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:40,236 INFO L410 AbstractCegarLoop]: === Iteration 1 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr10ASSERT_VIOLATIONMEMORY_FREE, tree_delErr0REQUIRES_VIOLATION, tree_delErr9ASSERT_VIOLATIONMEMORY_FREE, tree_delErr11REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr7REQUIRES_VIOLATION, tree_delErr6REQUIRES_VIOLATION]=== [2019-11-28 02:48:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:40,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1001761591, now seen corresponding path program 1 times [2019-11-28 02:48:40,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:40,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748211762] [2019-11-28 02:48:40,254 INFO L94 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 [2019-11-28 02:48:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:40,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 02:48:40,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:40,404 INFO L377 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 [2019-11-28 02:48:40,405 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:40,414 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:40,414 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:40,415 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:40,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:40,424 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:40,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:40,438 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748211762] [2019-11-28 02:48:40,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:40,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 02:48:40,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487551645] [2019-11-28 02:48:40,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:48:40,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:40,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:48:40,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:48:40,464 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 3 states. [2019-11-28 02:48:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:40,783 INFO L93 Difference]: Finished difference Result 179 states and 203 transitions. [2019-11-28 02:48:40,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:48:40,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 02:48:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:40,799 INFO L225 Difference]: With dead ends: 179 [2019-11-28 02:48:40,799 INFO L226 Difference]: Without dead ends: 176 [2019-11-28 02:48:40,801 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:48:40,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-11-28 02:48:40,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2019-11-28 02:48:40,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2019-11-28 02:48:40,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 196 transitions. [2019-11-28 02:48:40,868 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 196 transitions. Word has length 8 [2019-11-28 02:48:40,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:40,868 INFO L462 AbstractCegarLoop]: Abstraction has 174 states and 196 transitions. [2019-11-28 02:48:40,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:48:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 196 transitions. [2019-11-28 02:48:40,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:48:40,869 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:40,870 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:41,071 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 02:48:41,073 INFO L410 AbstractCegarLoop]: === Iteration 2 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr10ASSERT_VIOLATIONMEMORY_FREE, tree_delErr0REQUIRES_VIOLATION, tree_delErr9ASSERT_VIOLATIONMEMORY_FREE, tree_delErr11REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr7REQUIRES_VIOLATION, tree_delErr6REQUIRES_VIOLATION]=== [2019-11-28 02:48:41,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:41,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1001761592, now seen corresponding path program 1 times [2019-11-28 02:48:41,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:41,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298332690] [2019-11-28 02:48:41,078 INFO L94 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 [2019-11-28 02:48:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:41,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:48:41,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:41,159 INFO L377 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 [2019-11-28 02:48:41,159 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:41,167 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:41,167 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:41,168 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:48:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:41,177 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:41,244 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298332690] [2019-11-28 02:48:41,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:41,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-28 02:48:41,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84175408] [2019-11-28 02:48:41,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:48:41,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:41,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:48:41,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:48:41,250 INFO L87 Difference]: Start difference. First operand 174 states and 196 transitions. Second operand 4 states. [2019-11-28 02:48:41,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:41,816 INFO L93 Difference]: Finished difference Result 173 states and 195 transitions. [2019-11-28 02:48:41,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:48:41,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 02:48:41,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:41,827 INFO L225 Difference]: With dead ends: 173 [2019-11-28 02:48:41,827 INFO L226 Difference]: Without dead ends: 173 [2019-11-28 02:48:41,828 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:48:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-28 02:48:41,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2019-11-28 02:48:41,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-11-28 02:48:41,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 195 transitions. [2019-11-28 02:48:41,850 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 195 transitions. Word has length 8 [2019-11-28 02:48:41,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:41,850 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 195 transitions. [2019-11-28 02:48:41,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:48:41,851 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 195 transitions. [2019-11-28 02:48:41,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 02:48:41,852 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:41,852 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:42,059 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 02:48:42,063 INFO L410 AbstractCegarLoop]: === Iteration 3 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr10ASSERT_VIOLATIONMEMORY_FREE, tree_delErr0REQUIRES_VIOLATION, tree_delErr9ASSERT_VIOLATIONMEMORY_FREE, tree_delErr11REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr7REQUIRES_VIOLATION, tree_delErr6REQUIRES_VIOLATION]=== [2019-11-28 02:48:42,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:42,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1282091075, now seen corresponding path program 1 times [2019-11-28 02:48:42,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:42,069 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724214265] [2019-11-28 02:48:42,069 INFO L94 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 [2019-11-28 02:48:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:42,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 02:48:42,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:42,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:42,239 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:42,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:42,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724214265] [2019-11-28 02:48:42,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:42,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-28 02:48:42,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890447640] [2019-11-28 02:48:42,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:48:42,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:42,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:48:42,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:48:42,303 INFO L87 Difference]: Start difference. First operand 173 states and 195 transitions. Second operand 8 states. [2019-11-28 02:48:42,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:42,483 INFO L93 Difference]: Finished difference Result 236 states and 274 transitions. [2019-11-28 02:48:42,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:48:42,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-28 02:48:42,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:42,487 INFO L225 Difference]: With dead ends: 236 [2019-11-28 02:48:42,488 INFO L226 Difference]: Without dead ends: 236 [2019-11-28 02:48:42,488 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:48:42,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-11-28 02:48:42,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 219. [2019-11-28 02:48:42,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-11-28 02:48:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 269 transitions. [2019-11-28 02:48:42,533 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 269 transitions. Word has length 15 [2019-11-28 02:48:42,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:42,535 INFO L462 AbstractCegarLoop]: Abstraction has 219 states and 269 transitions. [2019-11-28 02:48:42,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:48:42,535 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 269 transitions. [2019-11-28 02:48:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:48:42,536 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:42,536 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:42,748 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 02:48:42,748 INFO L410 AbstractCegarLoop]: === Iteration 4 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr10ASSERT_VIOLATIONMEMORY_FREE, tree_delErr0REQUIRES_VIOLATION, tree_delErr9ASSERT_VIOLATIONMEMORY_FREE, tree_delErr11REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr7REQUIRES_VIOLATION, tree_delErr6REQUIRES_VIOLATION]=== [2019-11-28 02:48:42,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:42,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1605601033, now seen corresponding path program 1 times [2019-11-28 02:48:42,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:42,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432054883] [2019-11-28 02:48:42,752 INFO L94 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 [2019-11-28 02:48:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:42,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 02:48:42,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:42,858 INFO L377 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 [2019-11-28 02:48:42,859 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:42,864 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:42,865 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:42,865 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:48:42,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:42,892 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:42,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:43,038 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432054883] [2019-11-28 02:48:43,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:43,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-28 02:48:43,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524894383] [2019-11-28 02:48:43,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:48:43,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:43,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:48:43,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:48:43,041 INFO L87 Difference]: Start difference. First operand 219 states and 269 transitions. Second operand 6 states. [2019-11-28 02:48:44,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:44,638 INFO L93 Difference]: Finished difference Result 234 states and 292 transitions. [2019-11-28 02:48:44,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:48:44,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 02:48:44,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:44,642 INFO L225 Difference]: With dead ends: 234 [2019-11-28 02:48:44,642 INFO L226 Difference]: Without dead ends: 234 [2019-11-28 02:48:44,643 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:48:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2019-11-28 02:48:44,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 223. [2019-11-28 02:48:44,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-11-28 02:48:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 277 transitions. [2019-11-28 02:48:44,661 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 277 transitions. Word has length 14 [2019-11-28 02:48:44,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:44,661 INFO L462 AbstractCegarLoop]: Abstraction has 223 states and 277 transitions. [2019-11-28 02:48:44,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:48:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 277 transitions. [2019-11-28 02:48:44,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:48:44,662 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:44,663 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:44,875 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 02:48:44,876 INFO L410 AbstractCegarLoop]: === Iteration 5 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr10ASSERT_VIOLATIONMEMORY_FREE, tree_delErr0REQUIRES_VIOLATION, tree_delErr9ASSERT_VIOLATIONMEMORY_FREE, tree_delErr11REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr7REQUIRES_VIOLATION, tree_delErr6REQUIRES_VIOLATION]=== [2019-11-28 02:48:44,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:44,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1605601032, now seen corresponding path program 1 times [2019-11-28 02:48:44,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:44,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621975464] [2019-11-28 02:48:44,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-28 02:48:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:44,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:48:44,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:44,950 INFO L377 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 [2019-11-28 02:48:44,973 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:44,981 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:44,982 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:44,982 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:45,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:45,008 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:45,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621975464] [2019-11-28 02:48:45,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:45,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 02:48:45,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723710711] [2019-11-28 02:48:45,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:48:45,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:45,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:48:45,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:48:45,046 INFO L87 Difference]: Start difference. First operand 223 states and 277 transitions. Second operand 5 states. [2019-11-28 02:48:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:45,819 INFO L93 Difference]: Finished difference Result 221 states and 273 transitions. [2019-11-28 02:48:45,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:48:45,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-28 02:48:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:45,821 INFO L225 Difference]: With dead ends: 221 [2019-11-28 02:48:45,821 INFO L226 Difference]: Without dead ends: 221 [2019-11-28 02:48:45,822 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:48:45,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2019-11-28 02:48:45,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2019-11-28 02:48:45,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-11-28 02:48:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 273 transitions. [2019-11-28 02:48:45,835 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 273 transitions. Word has length 14 [2019-11-28 02:48:45,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:45,836 INFO L462 AbstractCegarLoop]: Abstraction has 221 states and 273 transitions. [2019-11-28 02:48:45,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:48:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 273 transitions. [2019-11-28 02:48:45,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 02:48:45,837 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:45,837 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:46,048 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 02:48:46,049 INFO L410 AbstractCegarLoop]: === Iteration 6 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr10ASSERT_VIOLATIONMEMORY_FREE, tree_delErr0REQUIRES_VIOLATION, tree_delErr9ASSERT_VIOLATIONMEMORY_FREE, tree_delErr11REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr7REQUIRES_VIOLATION, tree_delErr6REQUIRES_VIOLATION]=== [2019-11-28 02:48:46,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:46,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1272737658, now seen corresponding path program 1 times [2019-11-28 02:48:46,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:46,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365946659] [2019-11-28 02:48:46,052 INFO L94 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 [2019-11-28 02:48:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:46,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 02:48:46,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:46,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:46,228 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:46,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:46,280 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365946659] [2019-11-28 02:48:46,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:46,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-28 02:48:46,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800893314] [2019-11-28 02:48:46,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:48:46,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:46,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:48:46,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:48:46,282 INFO L87 Difference]: Start difference. First operand 221 states and 273 transitions. Second operand 8 states. [2019-11-28 02:48:46,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:46,450 INFO L93 Difference]: Finished difference Result 242 states and 282 transitions. [2019-11-28 02:48:46,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:48:46,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-11-28 02:48:46,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:46,455 INFO L225 Difference]: With dead ends: 242 [2019-11-28 02:48:46,456 INFO L226 Difference]: Without dead ends: 242 [2019-11-28 02:48:46,456 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:48:46,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-11-28 02:48:46,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 225. [2019-11-28 02:48:46,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-11-28 02:48:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 276 transitions. [2019-11-28 02:48:46,476 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 276 transitions. Word has length 21 [2019-11-28 02:48:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:46,477 INFO L462 AbstractCegarLoop]: Abstraction has 225 states and 276 transitions. [2019-11-28 02:48:46,477 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:48:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 276 transitions. [2019-11-28 02:48:46,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-28 02:48:46,481 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:46,481 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:46,694 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 02:48:46,696 INFO L410 AbstractCegarLoop]: === Iteration 7 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr10ASSERT_VIOLATIONMEMORY_FREE, tree_delErr0REQUIRES_VIOLATION, tree_delErr9ASSERT_VIOLATIONMEMORY_FREE, tree_delErr11REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr7REQUIRES_VIOLATION, tree_delErr6REQUIRES_VIOLATION]=== [2019-11-28 02:48:46,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:46,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1354898152, now seen corresponding path program 1 times [2019-11-28 02:48:46,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:46,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090356488] [2019-11-28 02:48:46,698 INFO L94 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 [2019-11-28 02:48:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:46,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-28 02:48:46,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:46,864 INFO L377 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 [2019-11-28 02:48:46,865 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:46,878 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:46,883 INFO L377 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 [2019-11-28 02:48:46,884 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:46,892 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:46,892 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:46,893 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-28 02:48:46,980 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:46,983 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-28 02:48:46,985 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:47,001 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:47,014 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-28 02:48:47,015 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:47,023 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:47,024 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 02:48:47,024 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:18 [2019-11-28 02:48:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-28 02:48:47,052 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:47,210 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:47,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:47,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:47,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:48,386 WARN L192 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2019-11-28 02:48:48,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:48,432 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-28 02:48:48,449 INFO L404 ElimStorePlain]: Different costs {3=[|v_old(#length)_BEFORE_CALL_3|], 6=[|v_old(#valid)_BEFORE_CALL_3|]} [2019-11-28 02:48:48,671 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 02:48:48,671 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:283) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:264) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:565) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:478) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-28 02:48:48,676 INFO L168 Benchmark]: Toolchain (without parser) took 10022.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.7 MB). Free memory was 955.0 MB in the beginning and 972.5 MB in the end (delta: -17.5 MB). Peak memory consumption was 170.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:48,676 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:48:48,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -141.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:48,678 INFO L168 Benchmark]: Boogie Preprocessor took 61.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:48,678 INFO L168 Benchmark]: RCFGBuilder took 969.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:48,679 INFO L168 Benchmark]: TraceAbstraction took 8526.97 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.0 GB in the beginning and 972.5 MB in the end (delta: 63.6 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:48,682 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 460.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -141.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 969.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8526.97 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.0 GB in the beginning and 972.5 MB in the end (delta: 63.6 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:283) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...