./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/verifythis/tree_max.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_max.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 937f48f52d5f1e5180502021b53b09e27d2211af ......................................................................................................................... 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_max.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 937f48f52d5f1e5180502021b53b09e27d2211af ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:48:19,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:48:19,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:48:19,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:48:19,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:48:19,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:48:19,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:48:19,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:48:19,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:48:19,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:48:19,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:48:19,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:48:19,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:48:19,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:48:19,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:48:19,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:48:19,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:48:19,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:48:19,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:48:19,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:48:19,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:48:19,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:48:19,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:48:19,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:48:19,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:48:19,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:48:19,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:48:19,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:48:19,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:48:19,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:48:19,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:48:19,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:48:19,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:48:19,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:48:19,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:48:19,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:48:19,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:48:19,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:48:19,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:48:19,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:48:19,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:48:19,869 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 02:48:19,884 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:48:19,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:48:19,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:48:19,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:48:19,887 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:48:19,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:48:19,887 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:48:19,887 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:48:19,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:48:19,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:48:19,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:48:19,889 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:48:19,889 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:48:19,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:48:19,889 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:48:19,890 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:48:19,890 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:48:19,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:48:19,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:48:19,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:48:19,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:48:19,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:48:19,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:48:19,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:48:19,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:48:19,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:48:19,893 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 -> 937f48f52d5f1e5180502021b53b09e27d2211af [2019-11-28 02:48:20,181 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:48:20,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:48:20,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:48:20,199 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:48:20,200 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:48:20,201 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_max.c [2019-11-28 02:48:20,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390010082/aaf2f21c8dce428ea33096cc96962c3d/FLAGa1e168bf0 [2019-11-28 02:48:20,701 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:48:20,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_max.c [2019-11-28 02:48:20,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390010082/aaf2f21c8dce428ea33096cc96962c3d/FLAGa1e168bf0 [2019-11-28 02:48:21,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390010082/aaf2f21c8dce428ea33096cc96962c3d [2019-11-28 02:48:21,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:48:21,075 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:48:21,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:21,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:48:21,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:48:21,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:21" (1/1) ... [2019-11-28 02:48:21,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe140f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:21, skipping insertion in model container [2019-11-28 02:48:21,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:21" (1/1) ... [2019-11-28 02:48:21,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:48:21,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:21,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:21,331 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 02:48:21,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@508ac9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:21, skipping insertion in model container [2019-11-28 02:48:21,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:21,332 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 02:48:21,335 INFO L168 Benchmark]: Toolchain (without parser) took 259.45 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:21,336 INFO L168 Benchmark]: CDTParser took 0.28 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 02:48:21,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.85 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:21,339 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 254.85 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 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: 22]: 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 02:48:23,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:48:23,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:48:23,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:48:23,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:48:23,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:48:23,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:48:23,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:48:23,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:48:23,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:48:23,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:48:23,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:48:23,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:48:23,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:48:23,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:48:23,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:48:23,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:48:23,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:48:23,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:48:23,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:48:23,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:48:23,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:48:23,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:48:23,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:48:23,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:48:23,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:48:23,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:48:23,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:48:23,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:48:23,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:48:23,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:48:23,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:48:23,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:48:23,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:48:23,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:48:23,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:48:23,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:48:23,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:48:23,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:48:23,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:48:23,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:48:23,082 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-11-28 02:48:23,106 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:48:23,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:48:23,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:48:23,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:48:23,110 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:48:23,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:48:23,113 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:48:23,113 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:48:23,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:48:23,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:48:23,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:48:23,114 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:48:23,114 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:48:23,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:48:23,115 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:48:23,115 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 02:48:23,115 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 02:48:23,115 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:48:23,115 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:48:23,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:48:23,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:48:23,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:48:23,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:48:23,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:48:23,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:48:23,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:48:23,117 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 02:48:23,118 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 02:48:23,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 02:48:23,118 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 -> 937f48f52d5f1e5180502021b53b09e27d2211af [2019-11-28 02:48:23,419 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:48:23,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:48:23,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:48:23,438 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:48:23,438 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:48:23,439 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_max.c [2019-11-28 02:48:23,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d7aa87c/780b8899661d4188a9c0adfc9b6d857e/FLAGe375f3e9f [2019-11-28 02:48:23,954 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:48:23,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_max.c [2019-11-28 02:48:23,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d7aa87c/780b8899661d4188a9c0adfc9b6d857e/FLAGe375f3e9f [2019-11-28 02:48:24,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d7aa87c/780b8899661d4188a9c0adfc9b6d857e [2019-11-28 02:48:24,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:48:24,358 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:48:24,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:24,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:48:24,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:48:24,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:24" (1/1) ... [2019-11-28 02:48:24,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7bf631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24, skipping insertion in model container [2019-11-28 02:48:24,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:24" (1/1) ... [2019-11-28 02:48:24,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:48:24,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:24,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:24,629 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 02:48:24,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:24,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:24,665 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:48:24,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:24,764 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:48:24,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24 WrapperNode [2019-11-28 02:48:24,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:24,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:48:24,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:48:24,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:48:24,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24" (1/1) ... [2019-11-28 02:48:24,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24" (1/1) ... [2019-11-28 02:48:24,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24" (1/1) ... [2019-11-28 02:48:24,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24" (1/1) ... [2019-11-28 02:48:24,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24" (1/1) ... [2019-11-28 02:48:24,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24" (1/1) ... [2019-11-28 02:48:24,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24" (1/1) ... [2019-11-28 02:48:24,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:48:24,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:48:24,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:48:24,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:48:24,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24" (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 02:48:24,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:48:24,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:48:24,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-28 02:48:24,868 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2019-11-28 02:48:24,868 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2019-11-28 02:48:24,869 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-11-28 02:48:24,869 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2019-11-28 02:48:24,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:48:24,869 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:48:24,869 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:48:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:48:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-28 02:48:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-28 02:48:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:48:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-28 02:48:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2019-11-28 02:48:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:48:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 02:48:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:48:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure max [2019-11-28 02:48:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 02:48:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:48:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-11-28 02:48:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure task [2019-11-28 02:48:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:48:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:48:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:48:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:48:25,360 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:48:25,360 INFO L297 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-28 02:48:25,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:25 BoogieIcfgContainer [2019-11-28 02:48:25,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:48:25,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:48:25,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:48:25,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:48:25,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:48:24" (1/3) ... [2019-11-28 02:48:25,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfdab95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:25, skipping insertion in model container [2019-11-28 02:48:25,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:24" (2/3) ... [2019-11-28 02:48:25,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfdab95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:25, skipping insertion in model container [2019-11-28 02:48:25,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:25" (3/3) ... [2019-11-28 02:48:25,369 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_max.c [2019-11-28 02:48:25,376 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:48:25,382 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-11-28 02:48:25,393 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-11-28 02:48:25,411 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:48:25,411 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:48:25,411 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:48:25,411 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:48:25,411 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:48:25,412 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:48:25,412 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:48:25,412 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:48:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2019-11-28 02:48:25,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:48:25,436 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:25,436 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:25,437 INFO L410 AbstractCegarLoop]: === Iteration 1 === [nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, maxErr1REQUIRES_VIOLATION, maxErr0REQUIRES_VIOLATION, maxErr5REQUIRES_VIOLATION, maxErr4REQUIRES_VIOLATION, maxErr3REQUIRES_VIOLATION, maxErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, checkErr2REQUIRES_VIOLATION, checkErr3REQUIRES_VIOLATION, checkErr4REQUIRES_VIOLATION, checkErr5REQUIRES_VIOLATION, checkErr0REQUIRES_VIOLATION, checkErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:25,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:25,443 INFO L82 PathProgramCache]: Analyzing trace with hash -850858221, now seen corresponding path program 1 times [2019-11-28 02:48:25,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:25,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805252911] [2019-11-28 02:48:25,453 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 02:48:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:25,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 02:48:25,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:25,612 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 02:48:25,613 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:25,622 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:25,622 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:25,622 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:25,633 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 02:48:25,633 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:25,645 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 02:48:25,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805252911] [2019-11-28 02:48:25,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:25,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 02:48:25,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158695036] [2019-11-28 02:48:25,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:48:25,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:25,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:48:25,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:48:25,664 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 3 states. [2019-11-28 02:48:25,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:25,808 INFO L93 Difference]: Finished difference Result 83 states and 96 transitions. [2019-11-28 02:48:25,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:48:25,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 02:48:25,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:25,824 INFO L225 Difference]: With dead ends: 83 [2019-11-28 02:48:25,825 INFO L226 Difference]: Without dead ends: 80 [2019-11-28 02:48:25,827 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 02:48:25,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-28 02:48:25,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2019-11-28 02:48:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-28 02:48:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2019-11-28 02:48:25,914 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 8 [2019-11-28 02:48:25,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:25,915 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2019-11-28 02:48:25,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:48:25,916 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2019-11-28 02:48:25,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:48:25,917 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:25,918 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:26,130 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 02:48:26,131 INFO L410 AbstractCegarLoop]: === Iteration 2 === [nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, maxErr1REQUIRES_VIOLATION, maxErr0REQUIRES_VIOLATION, maxErr5REQUIRES_VIOLATION, maxErr4REQUIRES_VIOLATION, maxErr3REQUIRES_VIOLATION, maxErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, checkErr2REQUIRES_VIOLATION, checkErr3REQUIRES_VIOLATION, checkErr4REQUIRES_VIOLATION, checkErr5REQUIRES_VIOLATION, checkErr0REQUIRES_VIOLATION, checkErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:26,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:26,133 INFO L82 PathProgramCache]: Analyzing trace with hash -850858220, now seen corresponding path program 1 times [2019-11-28 02:48:26,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:26,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503962269] [2019-11-28 02:48:26,135 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 02:48:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:26,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:48:26,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:26,195 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 02:48:26,195 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:26,204 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:26,204 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:26,206 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:48:26,216 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 02:48:26,217 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:26,269 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 02:48:26,269 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503962269] [2019-11-28 02:48:26,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:26,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-28 02:48:26,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331813724] [2019-11-28 02:48:26,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:48:26,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:26,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:48:26,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:48:26,273 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 4 states. [2019-11-28 02:48:26,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:26,453 INFO L93 Difference]: Finished difference Result 77 states and 88 transitions. [2019-11-28 02:48:26,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:48:26,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 02:48:26,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:26,457 INFO L225 Difference]: With dead ends: 77 [2019-11-28 02:48:26,457 INFO L226 Difference]: Without dead ends: 77 [2019-11-28 02:48:26,458 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 02:48:26,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-28 02:48:26,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-28 02:48:26,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-28 02:48:26,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2019-11-28 02:48:26,474 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 8 [2019-11-28 02:48:26,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:26,474 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2019-11-28 02:48:26,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:48:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2019-11-28 02:48:26,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 02:48:26,477 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:26,478 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:26,688 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 02:48:26,689 INFO L410 AbstractCegarLoop]: === Iteration 3 === [nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, maxErr1REQUIRES_VIOLATION, maxErr0REQUIRES_VIOLATION, maxErr5REQUIRES_VIOLATION, maxErr4REQUIRES_VIOLATION, maxErr3REQUIRES_VIOLATION, maxErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, checkErr2REQUIRES_VIOLATION, checkErr3REQUIRES_VIOLATION, checkErr4REQUIRES_VIOLATION, checkErr5REQUIRES_VIOLATION, checkErr0REQUIRES_VIOLATION, checkErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:26,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:26,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1335673327, now seen corresponding path program 1 times [2019-11-28 02:48:26,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:26,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720958910] [2019-11-28 02:48:26,691 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 02:48:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:26,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 02:48:26,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:26,847 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 02:48:26,847 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:26,906 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 02:48:26,907 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720958910] [2019-11-28 02:48:26,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:26,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-28 02:48:26,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226374337] [2019-11-28 02:48:26,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:48:26,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:26,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:48:26,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:48:26,910 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand 8 states. [2019-11-28 02:48:27,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:27,064 INFO L93 Difference]: Finished difference Result 93 states and 109 transitions. [2019-11-28 02:48:27,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:48:27,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-28 02:48:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:27,067 INFO L225 Difference]: With dead ends: 93 [2019-11-28 02:48:27,067 INFO L226 Difference]: Without dead ends: 93 [2019-11-28 02:48:27,068 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 02:48:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-28 02:48:27,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2019-11-28 02:48:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-28 02:48:27,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2019-11-28 02:48:27,082 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 15 [2019-11-28 02:48:27,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:27,083 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2019-11-28 02:48:27,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:48:27,084 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2019-11-28 02:48:27,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:48:27,085 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:27,085 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:27,299 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 02:48:27,300 INFO L410 AbstractCegarLoop]: === Iteration 4 === [nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, maxErr1REQUIRES_VIOLATION, maxErr0REQUIRES_VIOLATION, maxErr5REQUIRES_VIOLATION, maxErr4REQUIRES_VIOLATION, maxErr3REQUIRES_VIOLATION, maxErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, checkErr2REQUIRES_VIOLATION, checkErr3REQUIRES_VIOLATION, checkErr4REQUIRES_VIOLATION, checkErr5REQUIRES_VIOLATION, checkErr0REQUIRES_VIOLATION, checkErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:27,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:27,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1917600900, now seen corresponding path program 1 times [2019-11-28 02:48:27,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:27,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249476782] [2019-11-28 02:48:27,302 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 02:48:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:27,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:48:27,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:27,370 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 02:48:27,371 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:27,373 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:27,374 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:27,374 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:27,393 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 02:48:27,393 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:27,440 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 02:48:27,440 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249476782] [2019-11-28 02:48:27,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:27,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 02:48:27,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646758418] [2019-11-28 02:48:27,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:48:27,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:27,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:48:27,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:48:27,442 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand 5 states. [2019-11-28 02:48:27,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:27,774 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2019-11-28 02:48:27,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:48:27,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-28 02:48:27,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:27,777 INFO L225 Difference]: With dead ends: 90 [2019-11-28 02:48:27,777 INFO L226 Difference]: Without dead ends: 86 [2019-11-28 02:48:27,778 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 02:48:27,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-11-28 02:48:27,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-11-28 02:48:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-28 02:48:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 99 transitions. [2019-11-28 02:48:27,794 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 99 transitions. Word has length 14 [2019-11-28 02:48:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:27,798 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 99 transitions. [2019-11-28 02:48:27,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:48:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 99 transitions. [2019-11-28 02:48:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:48:27,799 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:27,799 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:28,020 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 02:48:28,021 INFO L410 AbstractCegarLoop]: === Iteration 5 === [nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, maxErr1REQUIRES_VIOLATION, maxErr0REQUIRES_VIOLATION, maxErr5REQUIRES_VIOLATION, maxErr4REQUIRES_VIOLATION, maxErr3REQUIRES_VIOLATION, maxErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, checkErr2REQUIRES_VIOLATION, checkErr3REQUIRES_VIOLATION, checkErr4REQUIRES_VIOLATION, checkErr5REQUIRES_VIOLATION, checkErr0REQUIRES_VIOLATION, checkErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:28,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:28,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1917600901, now seen corresponding path program 1 times [2019-11-28 02:48:28,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:28,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582668609] [2019-11-28 02:48:28,024 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 02:48:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:28,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 02:48:28,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:28,107 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 02:48:28,107 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,119 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:28,119 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,119 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:48:28,143 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 02:48:28,143 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:28,211 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:28,263 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 02:48:28,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582668609] [2019-11-28 02:48:28,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:28,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-28 02:48:28,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401496367] [2019-11-28 02:48:28,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:48:28,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:28,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:48:28,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:48:28,268 INFO L87 Difference]: Start difference. First operand 86 states and 99 transitions. Second operand 6 states. [2019-11-28 02:48:28,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:28,897 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2019-11-28 02:48:28,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:48:28,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 02:48:28,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:28,904 INFO L225 Difference]: With dead ends: 98 [2019-11-28 02:48:28,904 INFO L226 Difference]: Without dead ends: 98 [2019-11-28 02:48:28,905 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:48:28,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-28 02:48:28,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90. [2019-11-28 02:48:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-28 02:48:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2019-11-28 02:48:28,917 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 14 [2019-11-28 02:48:28,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:28,918 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2019-11-28 02:48:28,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:48:28,918 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2019-11-28 02:48:28,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 02:48:28,920 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:28,920 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 02:48:29,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 02:48:29,129 INFO L410 AbstractCegarLoop]: === Iteration 6 === [nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, maxErr1REQUIRES_VIOLATION, maxErr0REQUIRES_VIOLATION, maxErr5REQUIRES_VIOLATION, maxErr4REQUIRES_VIOLATION, maxErr3REQUIRES_VIOLATION, maxErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, checkErr2REQUIRES_VIOLATION, checkErr3REQUIRES_VIOLATION, checkErr4REQUIRES_VIOLATION, checkErr5REQUIRES_VIOLATION, checkErr0REQUIRES_VIOLATION, checkErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:29,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:29,129 INFO L82 PathProgramCache]: Analyzing trace with hash -521788033, now seen corresponding path program 1 times [2019-11-28 02:48:29,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:29,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802644292] [2019-11-28 02:48:29,130 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 02:48:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:29,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 02:48:29,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:29,254 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 02:48:29,254 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:29,302 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 02:48:29,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802644292] [2019-11-28 02:48:29,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:29,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-28 02:48:29,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568842965] [2019-11-28 02:48:29,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:48:29,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:29,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:48:29,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:48:29,304 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand 8 states. [2019-11-28 02:48:29,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:29,421 INFO L93 Difference]: Finished difference Result 96 states and 112 transitions. [2019-11-28 02:48:29,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:48:29,421 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-11-28 02:48:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:29,423 INFO L225 Difference]: With dead ends: 96 [2019-11-28 02:48:29,423 INFO L226 Difference]: Without dead ends: 83 [2019-11-28 02:48:29,424 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 02:48:29,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-28 02:48:29,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2019-11-28 02:48:29,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-11-28 02:48:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 95 transitions. [2019-11-28 02:48:29,432 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 95 transitions. Word has length 21 [2019-11-28 02:48:29,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:29,432 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 95 transitions. [2019-11-28 02:48:29,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:48:29,432 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 95 transitions. [2019-11-28 02:48:29,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-28 02:48:29,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:29,434 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:29,653 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 02:48:29,653 INFO L410 AbstractCegarLoop]: === Iteration 7 === [nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, maxErr1REQUIRES_VIOLATION, maxErr0REQUIRES_VIOLATION, maxErr5REQUIRES_VIOLATION, maxErr4REQUIRES_VIOLATION, maxErr3REQUIRES_VIOLATION, maxErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, checkErr2REQUIRES_VIOLATION, checkErr3REQUIRES_VIOLATION, checkErr4REQUIRES_VIOLATION, checkErr5REQUIRES_VIOLATION, checkErr0REQUIRES_VIOLATION, checkErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:29,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:29,654 INFO L82 PathProgramCache]: Analyzing trace with hash 184195558, now seen corresponding path program 1 times [2019-11-28 02:48:29,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:29,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536062864] [2019-11-28 02:48:29,655 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 02:48:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:29,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-28 02:48:29,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:29,919 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 02:48:29,920 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:29,927 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:29,931 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 02:48:29,931 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:29,938 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:29,939 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:29,939 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-28 02:48:30,031 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:30,031 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 11 treesize of output 15 [2019-11-28 02:48:30,032 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:30,045 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:30,052 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 02:48:30,053 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:30,062 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:30,063 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 02:48:30,063 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:18 [2019-11-28 02:48:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-28 02:48:30,093 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:30,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:30,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:30,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:30,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:32,820 WARN L192 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2019-11-28 02:48:32,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:32,879 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-28 02:48:32,884 INFO L404 ElimStorePlain]: Different costs {3=[|v_old(#length)_BEFORE_CALL_3|], 6=[|v_old(#valid)_BEFORE_CALL_3|]} [2019-11-28 02:48:33,092 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 02:48:33,096 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 02:48:33,101 INFO L168 Benchmark]: Toolchain (without parser) took 8743.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:33,101 INFO L168 Benchmark]: CDTParser took 0.75 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 02:48:33,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:33,102 INFO L168 Benchmark]: Boogie Preprocessor took 45.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:48:33,103 INFO L168 Benchmark]: RCFGBuilder took 550.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:33,104 INFO L168 Benchmark]: TraceAbstraction took 7736.76 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.7 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:33,108 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 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 405.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 550.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7736.76 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.7 MB). Peak memory consumption was 32.2 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...