./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/verifythis/tree_del_iter.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/verifythis/tree_del_iter.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 9186562caa2aa3b429c14af504cbc4d63c10baa7 .......................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/verifythis/tree_del_iter.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 9186562caa2aa3b429c14af504cbc4d63c10baa7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:48:21,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:48:21,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:48:21,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:48:21,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:48:21,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:48:21,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:48:21,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:48:21,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:48:21,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:48:21,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:48:21,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:48:21,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:48:21,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:48:21,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:48:21,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:48:21,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:48:21,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:48:21,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:48:21,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:48:21,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:48:21,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:48:21,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:48:21,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:48:21,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:48:21,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:48:21,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:48:21,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:48:21,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:48:21,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:48:21,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:48:21,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:48:21,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:48:21,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:48:21,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:48:21,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:48:21,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:48:21,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:48:21,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:48:21,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:48:21,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:48:21,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 02:48:21,106 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:48:21,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:48:21,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:48:21,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:48:21,109 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:48:21,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:48:21,109 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:48:21,110 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:48:21,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:48:21,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:48:21,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:48:21,111 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:48:21,111 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:48:21,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:48:21,112 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:48:21,112 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:48:21,112 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:48:21,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:48:21,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:48:21,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:48:21,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:48:21,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:48:21,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:48:21,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:48:21,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:48:21,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:48:21,115 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 -> 9186562caa2aa3b429c14af504cbc4d63c10baa7 [2019-11-28 02:48:21,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:48:21,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:48:21,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:48:21,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:48:21,480 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:48:21,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_iter.c [2019-11-28 02:48:21,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97917525c/0e606dd7e6334752b4bfabe2e7f24ef8/FLAG7f5d6a965 [2019-11-28 02:48:22,018 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:48:22,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c [2019-11-28 02:48:22,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97917525c/0e606dd7e6334752b4bfabe2e7f24ef8/FLAG7f5d6a965 [2019-11-28 02:48:22,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97917525c/0e606dd7e6334752b4bfabe2e7f24ef8 [2019-11-28 02:48:22,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:48:22,378 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:48:22,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:22,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:48:22,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:48:22,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:22" (1/1) ... [2019-11-28 02:48:22,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4d7392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:22, skipping insertion in model container [2019-11-28 02:48:22,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:22" (1/1) ... [2019-11-28 02:48:22,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:48:22,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:22,677 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:22,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:22,711 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 02:48:22,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a4be310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:22, skipping insertion in model container [2019-11-28 02:48:22,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:22,713 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 02:48:22,716 INFO L168 Benchmark]: Toolchain (without parser) took 337.13 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:22,718 INFO L168 Benchmark]: CDTParser took 0.31 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 02:48:22,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.35 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:22,724 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 333.35 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 23]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:48:24,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:48:24,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:48:24,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:48:24,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:48:24,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:48:24,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:48:24,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:48:24,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:48:24,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:48:24,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:48:24,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:48:24,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:48:24,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:48:24,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:48:24,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:48:24,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:48:24,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:48:24,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:48:24,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:48:24,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:48:24,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:48:24,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:48:24,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:48:24,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:48:24,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:48:24,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:48:24,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:48:24,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:48:24,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:48:24,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:48:24,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:48:24,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:48:24,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:48:24,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:48:24,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:48:24,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:48:24,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:48:24,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:48:24,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:48:24,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:48:24,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-11-28 02:48:24,651 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:48:24,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:48:24,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:48:24,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:48:24,653 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:48:24,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:48:24,654 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:48:24,654 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:48:24,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:48:24,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:48:24,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:48:24,655 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:48:24,656 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:48:24,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:48:24,656 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:48:24,657 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 02:48:24,657 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 02:48:24,657 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:48:24,657 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:48:24,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:48:24,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:48:24,658 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:48:24,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:48:24,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:48:24,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:48:24,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:48:24,660 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 02:48:24,660 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 02:48:24,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 02:48:24,661 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 -> 9186562caa2aa3b429c14af504cbc4d63c10baa7 [2019-11-28 02:48:24,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:48:24,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:48:24,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:48:24,976 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:48:24,977 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:48:24,977 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_iter.c [2019-11-28 02:48:25,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88c4f3a89/2a6aed1a00f245288f845d9c8cfa3d12/FLAG19cc8e2b6 [2019-11-28 02:48:25,542 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:48:25,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c [2019-11-28 02:48:25,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88c4f3a89/2a6aed1a00f245288f845d9c8cfa3d12/FLAG19cc8e2b6 [2019-11-28 02:48:25,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88c4f3a89/2a6aed1a00f245288f845d9c8cfa3d12 [2019-11-28 02:48:25,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:48:25,894 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:48:25,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:25,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:48:25,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:48:25,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:25" (1/1) ... [2019-11-28 02:48:25,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a48a79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:25, skipping insertion in model container [2019-11-28 02:48:25,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:25" (1/1) ... [2019-11-28 02:48:25,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:48:25,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:26,149 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:26,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:26,259 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 02:48:26,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:26,285 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:26,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:26,306 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:48:26,328 WARN L1484 CHandler]: Possible shadowing of function min [2019-11-28 02:48:26,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:26,360 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:48:26,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26 WrapperNode [2019-11-28 02:48:26,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:26,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:48:26,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:48:26,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:48:26,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26" (1/1) ... [2019-11-28 02:48:26,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26" (1/1) ... [2019-11-28 02:48:26,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26" (1/1) ... [2019-11-28 02:48:26,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26" (1/1) ... [2019-11-28 02:48:26,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26" (1/1) ... [2019-11-28 02:48:26,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26" (1/1) ... [2019-11-28 02:48:26,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26" (1/1) ... [2019-11-28 02:48:26,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:48:26,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:48:26,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:48:26,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:48:26,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26" (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 02:48:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:48:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:48:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-28 02:48:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2019-11-28 02:48:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure min [2019-11-28 02:48:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_del [2019-11-28 02:48:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_inorder [2019-11-28 02:48:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure size [2019-11-28 02:48:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2019-11-28 02:48:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:48:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-28 02:48:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:48:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:48:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:48:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:48:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-28 02:48:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-28 02:48:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:48:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-28 02:48:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2019-11-28 02:48:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:48:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 02:48:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:48:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure min [2019-11-28 02:48:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 02:48:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:48:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure tree_del [2019-11-28 02:48:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:48:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure tree_inorder [2019-11-28 02:48:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure size [2019-11-28 02:48:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure task [2019-11-28 02:48:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 02:48:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-28 02:48:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:48:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:48:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:48:27,482 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:48:27,482 INFO L297 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-28 02:48:27,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:27 BoogieIcfgContainer [2019-11-28 02:48:27,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:48:27,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:48:27,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:48:27,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:48:27,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:48:25" (1/3) ... [2019-11-28 02:48:27,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d65a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:27, skipping insertion in model container [2019-11-28 02:48:27,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:26" (2/3) ... [2019-11-28 02:48:27,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d65a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:27, skipping insertion in model container [2019-11-28 02:48:27,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:27" (3/3) ... [2019-11-28 02:48:27,495 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_del_iter.c [2019-11-28 02:48:27,506 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:48:27,514 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 64 error locations. [2019-11-28 02:48:27,527 INFO L249 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2019-11-28 02:48:27,548 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:48:27,548 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:48:27,549 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:48:27,549 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:48:27,549 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:48:27,550 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:48:27,550 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:48:27,551 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:48:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-11-28 02:48:27,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:48:27,607 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:27,608 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:27,609 INFO L410 AbstractCegarLoop]: === Iteration 1 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr18ASSERT_VIOLATIONMEMORY_FREE, tree_delErr20REQUIRES_VIOLATION, tree_delErr9REQUIRES_VIOLATION, tree_delErr0REQUIRES_VIOLATION, tree_delErr11REQUIRES_VIOLATION, tree_delErr21REQUIRES_VIOLATION, tree_delErr10REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr23REQUIRES_VIOLATION, tree_delErr6ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr7ASSERT_VIOLATIONMEMORY_FREE, tree_delErr22REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr15REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr16REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr19ASSERT_VIOLATIONMEMORY_FREE, tree_delErr17ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:48:27,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:27,616 INFO L82 PathProgramCache]: Analyzing trace with hash -608495047, now seen corresponding path program 1 times [2019-11-28 02:48:27,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:27,628 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044816735] [2019-11-28 02:48:27,628 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 02:48:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:27,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 02:48:27,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:27,796 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 02:48:27,796 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:27,803 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:27,804 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:27,804 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:27,816 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 02:48:27,817 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:27,831 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 02:48:27,833 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044816735] [2019-11-28 02:48:27,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:27,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 02:48:27,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005486977] [2019-11-28 02:48:27,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:48:27,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:27,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:48:27,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:48:27,857 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2019-11-28 02:48:28,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:28,232 INFO L93 Difference]: Finished difference Result 199 states and 223 transitions. [2019-11-28 02:48:28,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:48:28,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 02:48:28,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:28,249 INFO L225 Difference]: With dead ends: 199 [2019-11-28 02:48:28,249 INFO L226 Difference]: Without dead ends: 196 [2019-11-28 02:48:28,251 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 02:48:28,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-11-28 02:48:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2019-11-28 02:48:28,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-11-28 02:48:28,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 216 transitions. [2019-11-28 02:48:28,364 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 216 transitions. Word has length 8 [2019-11-28 02:48:28,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:28,365 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 216 transitions. [2019-11-28 02:48:28,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:48:28,365 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 216 transitions. [2019-11-28 02:48:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:48:28,367 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:28,367 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:28,581 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 02:48:28,582 INFO L410 AbstractCegarLoop]: === Iteration 2 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr18ASSERT_VIOLATIONMEMORY_FREE, tree_delErr20REQUIRES_VIOLATION, tree_delErr9REQUIRES_VIOLATION, tree_delErr0REQUIRES_VIOLATION, tree_delErr11REQUIRES_VIOLATION, tree_delErr21REQUIRES_VIOLATION, tree_delErr10REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr23REQUIRES_VIOLATION, tree_delErr6ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr7ASSERT_VIOLATIONMEMORY_FREE, tree_delErr22REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr15REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr16REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr19ASSERT_VIOLATIONMEMORY_FREE, tree_delErr17ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:48:28,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:28,583 INFO L82 PathProgramCache]: Analyzing trace with hash -608495046, now seen corresponding path program 1 times [2019-11-28 02:48:28,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:28,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70643591] [2019-11-28 02:48:28,584 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 02:48:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:28,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:48:28,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:28,661 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 02:48:28,662 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,669 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:28,670 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,670 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:48:28,679 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 02:48:28,680 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:28,731 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 02:48:28,732 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70643591] [2019-11-28 02:48:28,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:28,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-28 02:48:28,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671641652] [2019-11-28 02:48:28,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:48:28,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:28,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:48:28,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:48:28,735 INFO L87 Difference]: Start difference. First operand 194 states and 216 transitions. Second operand 4 states. [2019-11-28 02:48:29,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:29,345 INFO L93 Difference]: Finished difference Result 193 states and 215 transitions. [2019-11-28 02:48:29,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:48:29,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 02:48:29,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:29,355 INFO L225 Difference]: With dead ends: 193 [2019-11-28 02:48:29,355 INFO L226 Difference]: Without dead ends: 193 [2019-11-28 02:48:29,358 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 02:48:29,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-28 02:48:29,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-11-28 02:48:29,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-28 02:48:29,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 215 transitions. [2019-11-28 02:48:29,377 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 215 transitions. Word has length 8 [2019-11-28 02:48:29,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:29,378 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 215 transitions. [2019-11-28 02:48:29,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:48:29,378 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 215 transitions. [2019-11-28 02:48:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 02:48:29,379 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:29,379 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:29,579 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 02:48:29,580 INFO L410 AbstractCegarLoop]: === Iteration 3 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr18ASSERT_VIOLATIONMEMORY_FREE, tree_delErr20REQUIRES_VIOLATION, tree_delErr9REQUIRES_VIOLATION, tree_delErr0REQUIRES_VIOLATION, tree_delErr11REQUIRES_VIOLATION, tree_delErr21REQUIRES_VIOLATION, tree_delErr10REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr23REQUIRES_VIOLATION, tree_delErr6ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr7ASSERT_VIOLATIONMEMORY_FREE, tree_delErr22REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr15REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr16REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr19ASSERT_VIOLATIONMEMORY_FREE, tree_delErr17ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:48:29,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:29,581 INFO L82 PathProgramCache]: Analyzing trace with hash 182084100, now seen corresponding path program 1 times [2019-11-28 02:48:29,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:29,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386169476] [2019-11-28 02:48:29,583 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 02:48:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:29,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 02:48:29,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:29,748 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 02:48:29,748 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:29,803 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 02:48:29,804 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386169476] [2019-11-28 02:48:29,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:29,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-28 02:48:29,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028299138] [2019-11-28 02:48:29,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:48:29,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:29,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:48:29,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:48:29,807 INFO L87 Difference]: Start difference. First operand 193 states and 215 transitions. Second operand 8 states. [2019-11-28 02:48:30,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:30,007 INFO L93 Difference]: Finished difference Result 256 states and 294 transitions. [2019-11-28 02:48:30,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:48:30,008 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-28 02:48:30,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:30,012 INFO L225 Difference]: With dead ends: 256 [2019-11-28 02:48:30,012 INFO L226 Difference]: Without dead ends: 256 [2019-11-28 02:48:30,014 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 02:48:30,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-11-28 02:48:30,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 239. [2019-11-28 02:48:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-11-28 02:48:30,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 289 transitions. [2019-11-28 02:48:30,062 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 289 transitions. Word has length 15 [2019-11-28 02:48:30,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:30,062 INFO L462 AbstractCegarLoop]: Abstraction has 239 states and 289 transitions. [2019-11-28 02:48:30,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:48:30,063 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 289 transitions. [2019-11-28 02:48:30,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:48:30,064 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:30,064 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:30,285 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 02:48:30,287 INFO L410 AbstractCegarLoop]: === Iteration 4 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr18ASSERT_VIOLATIONMEMORY_FREE, tree_delErr20REQUIRES_VIOLATION, tree_delErr9REQUIRES_VIOLATION, tree_delErr0REQUIRES_VIOLATION, tree_delErr11REQUIRES_VIOLATION, tree_delErr21REQUIRES_VIOLATION, tree_delErr10REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr23REQUIRES_VIOLATION, tree_delErr6ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr7ASSERT_VIOLATIONMEMORY_FREE, tree_delErr22REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr15REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr16REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr19ASSERT_VIOLATIONMEMORY_FREE, tree_delErr17ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:48:30,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:30,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1618316886, now seen corresponding path program 1 times [2019-11-28 02:48:30,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:30,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481440687] [2019-11-28 02:48:30,290 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 02:48:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:30,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:48:30,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:30,361 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 02:48:30,362 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:30,364 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:30,364 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:30,365 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:30,384 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 02:48:30,384 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:30,442 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 02:48:30,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481440687] [2019-11-28 02:48:30,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:30,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 02:48:30,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942995223] [2019-11-28 02:48:30,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:48:30,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:30,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:48:30,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:48:30,445 INFO L87 Difference]: Start difference. First operand 239 states and 289 transitions. Second operand 5 states. [2019-11-28 02:48:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:31,215 INFO L93 Difference]: Finished difference Result 237 states and 287 transitions. [2019-11-28 02:48:31,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:48:31,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-28 02:48:31,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:31,219 INFO L225 Difference]: With dead ends: 237 [2019-11-28 02:48:31,220 INFO L226 Difference]: Without dead ends: 237 [2019-11-28 02:48:31,220 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 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 02:48:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2019-11-28 02:48:31,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2019-11-28 02:48:31,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2019-11-28 02:48:31,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 287 transitions. [2019-11-28 02:48:31,235 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 287 transitions. Word has length 14 [2019-11-28 02:48:31,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:31,236 INFO L462 AbstractCegarLoop]: Abstraction has 237 states and 287 transitions. [2019-11-28 02:48:31,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:48:31,236 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 287 transitions. [2019-11-28 02:48:31,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:48:31,237 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:31,237 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:31,448 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 02:48:31,449 INFO L410 AbstractCegarLoop]: === Iteration 5 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr18ASSERT_VIOLATIONMEMORY_FREE, tree_delErr20REQUIRES_VIOLATION, tree_delErr9REQUIRES_VIOLATION, tree_delErr0REQUIRES_VIOLATION, tree_delErr11REQUIRES_VIOLATION, tree_delErr21REQUIRES_VIOLATION, tree_delErr10REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr23REQUIRES_VIOLATION, tree_delErr6ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr7ASSERT_VIOLATIONMEMORY_FREE, tree_delErr22REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr15REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr16REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr19ASSERT_VIOLATIONMEMORY_FREE, tree_delErr17ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:48:31,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:31,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1618316885, now seen corresponding path program 1 times [2019-11-28 02:48:31,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:31,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292040807] [2019-11-28 02:48:31,452 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 02:48:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:31,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 02:48:31,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:31,540 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 02:48:31,540 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:31,546 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:31,546 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:31,546 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:48:31,563 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 02:48:31,563 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:31,620 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:31,661 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 02:48:31,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292040807] [2019-11-28 02:48:31,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:31,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-28 02:48:31,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529955057] [2019-11-28 02:48:31,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:48:31,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:31,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:48:31,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:48:31,663 INFO L87 Difference]: Start difference. First operand 237 states and 287 transitions. Second operand 6 states. [2019-11-28 02:48:33,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:33,217 INFO L93 Difference]: Finished difference Result 249 states and 307 transitions. [2019-11-28 02:48:33,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:48:33,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 02:48:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:33,221 INFO L225 Difference]: With dead ends: 249 [2019-11-28 02:48:33,222 INFO L226 Difference]: Without dead ends: 249 [2019-11-28 02:48:33,223 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 02:48:33,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2019-11-28 02:48:33,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 241. [2019-11-28 02:48:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2019-11-28 02:48:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 293 transitions. [2019-11-28 02:48:33,247 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 293 transitions. Word has length 14 [2019-11-28 02:48:33,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:33,248 INFO L462 AbstractCegarLoop]: Abstraction has 241 states and 293 transitions. [2019-11-28 02:48:33,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:48:33,249 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 293 transitions. [2019-11-28 02:48:33,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 02:48:33,251 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:33,251 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 02:48:33,468 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 02:48:33,469 INFO L410 AbstractCegarLoop]: === Iteration 6 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr18ASSERT_VIOLATIONMEMORY_FREE, tree_delErr20REQUIRES_VIOLATION, tree_delErr9REQUIRES_VIOLATION, tree_delErr0REQUIRES_VIOLATION, tree_delErr11REQUIRES_VIOLATION, tree_delErr21REQUIRES_VIOLATION, tree_delErr10REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr23REQUIRES_VIOLATION, tree_delErr6ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr7ASSERT_VIOLATIONMEMORY_FREE, tree_delErr22REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr15REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr16REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr19ASSERT_VIOLATIONMEMORY_FREE, tree_delErr17ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:48:33,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:33,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1768591650, now seen corresponding path program 1 times [2019-11-28 02:48:33,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:33,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369221729] [2019-11-28 02:48:33,470 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 02:48:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:33,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 02:48:33,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:33,616 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 02:48:33,617 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:33,663 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 02:48:33,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369221729] [2019-11-28 02:48:33,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:33,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-28 02:48:33,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217984007] [2019-11-28 02:48:33,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:48:33,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:33,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:48:33,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:48:33,666 INFO L87 Difference]: Start difference. First operand 241 states and 293 transitions. Second operand 8 states. [2019-11-28 02:48:33,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:33,833 INFO L93 Difference]: Finished difference Result 262 states and 302 transitions. [2019-11-28 02:48:33,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:48:33,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-11-28 02:48:33,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:33,836 INFO L225 Difference]: With dead ends: 262 [2019-11-28 02:48:33,837 INFO L226 Difference]: Without dead ends: 262 [2019-11-28 02:48:33,837 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 02:48:33,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2019-11-28 02:48:33,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 245. [2019-11-28 02:48:33,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-11-28 02:48:33,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 296 transitions. [2019-11-28 02:48:33,849 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 296 transitions. Word has length 21 [2019-11-28 02:48:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:33,850 INFO L462 AbstractCegarLoop]: Abstraction has 245 states and 296 transitions. [2019-11-28 02:48:33,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:48:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 296 transitions. [2019-11-28 02:48:33,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-28 02:48:33,851 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:33,852 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:34,063 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 02:48:34,063 INFO L410 AbstractCegarLoop]: === Iteration 7 === [minErr1REQUIRES_VIOLATION, minErr0REQUIRES_VIOLATION, minErr5REQUIRES_VIOLATION, minErr4REQUIRES_VIOLATION, minErr3REQUIRES_VIOLATION, minErr2REQUIRES_VIOLATION, taskErr5REQUIRES_VIOLATION, taskErr7REQUIRES_VIOLATION, taskErr13ASSERT_VIOLATIONMEMORY_FREE, taskErr6REQUIRES_VIOLATION, taskErr8ASSERT_VIOLATIONMEMORY_FREE, taskErr9ASSERT_VIOLATIONMEMORY_FREE, taskErr10ASSERT_VIOLATIONMEMORY_FREE, taskErr0REQUIRES_VIOLATION, taskErr11ASSERT_VIOLATIONMEMORY_FREE, taskErr1REQUIRES_VIOLATION, taskErr3REQUIRES_VIOLATION, taskErr12ASSERT_VIOLATIONMEMORY_FREE, taskErr2REQUIRES_VIOLATION, taskErr4REQUIRES_VIOLATION, sizeErr0REQUIRES_VIOLATION, sizeErr1REQUIRES_VIOLATION, sizeErr2REQUIRES_VIOLATION, sizeErr3REQUIRES_VIOLATION, nondet_treeErr1REQUIRES_VIOLATION, nondet_treeErr0REQUIRES_VIOLATION, nondet_treeErr5REQUIRES_VIOLATION, nondet_treeErr4REQUIRES_VIOLATION, nondet_treeErr3REQUIRES_VIOLATION, nondet_treeErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, tree_inorderErr4REQUIRES_VIOLATION, tree_inorderErr2REQUIRES_VIOLATION, tree_inorderErr3REQUIRES_VIOLATION, tree_inorderErr1REQUIRES_VIOLATION, tree_inorderErr6REQUIRES_VIOLATION, tree_inorderErr7REQUIRES_VIOLATION, tree_inorderErr5REQUIRES_VIOLATION, tree_inorderErr0REQUIRES_VIOLATION, tree_delErr18ASSERT_VIOLATIONMEMORY_FREE, tree_delErr20REQUIRES_VIOLATION, tree_delErr9REQUIRES_VIOLATION, tree_delErr0REQUIRES_VIOLATION, tree_delErr11REQUIRES_VIOLATION, tree_delErr21REQUIRES_VIOLATION, tree_delErr10REQUIRES_VIOLATION, tree_delErr8ASSERT_VIOLATIONMEMORY_FREE, tree_delErr23REQUIRES_VIOLATION, tree_delErr6ASSERT_VIOLATIONMEMORY_FREE, tree_delErr12REQUIRES_VIOLATION, tree_delErr1REQUIRES_VIOLATION, tree_delErr7ASSERT_VIOLATIONMEMORY_FREE, tree_delErr22REQUIRES_VIOLATION, tree_delErr3REQUIRES_VIOLATION, tree_delErr2REQUIRES_VIOLATION, tree_delErr13REQUIRES_VIOLATION, tree_delErr4REQUIRES_VIOLATION, tree_delErr15REQUIRES_VIOLATION, tree_delErr14REQUIRES_VIOLATION, tree_delErr16REQUIRES_VIOLATION, tree_delErr5REQUIRES_VIOLATION, tree_delErr19ASSERT_VIOLATIONMEMORY_FREE, tree_delErr17ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:48:34,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:34,065 INFO L82 PathProgramCache]: Analyzing trace with hash 721133736, now seen corresponding path program 1 times [2019-11-28 02:48:34,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:34,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583278658] [2019-11-28 02:48:34,066 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 02:48:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:34,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-28 02:48:34,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:34,274 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 02:48:34,274 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:34,283 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:34,286 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 02:48:34,287 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:34,294 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:34,294 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:34,295 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-28 02:48:34,391 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:34,392 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-28 02:48:34,394 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:34,405 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:34,411 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 02:48:34,412 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:34,421 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:34,422 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 02:48:34,422 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:18 [2019-11-28 02:48:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-28 02:48:34,451 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:34,583 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:34,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:34,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:34,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:37,760 WARN L192 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2019-11-28 02:48:37,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:37,811 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-28 02:48:37,824 INFO L404 ElimStorePlain]: Different costs {3=[|v_old(#length)_BEFORE_CALL_3|], 6=[|v_old(#valid)_BEFORE_CALL_3|]} [2019-11-28 02:48:38,025 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 02:48:38,026 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 02:48:38,035 INFO L168 Benchmark]: Toolchain (without parser) took 12141.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 955.0 MB in the beginning and 967.0 MB in the end (delta: -12.0 MB). Peak memory consumption was 199.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:38,035 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:48:38,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:38,037 INFO L168 Benchmark]: Boogie Preprocessor took 72.33 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:38,038 INFO L168 Benchmark]: RCFGBuilder took 1044.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:38,039 INFO L168 Benchmark]: TraceAbstraction took 10548.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 967.0 MB in the end (delta: 101.2 MB). Peak memory consumption was 169.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:38,042 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 466.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.33 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1044.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10548.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 967.0 MB in the end (delta: 101.2 MB). Peak memory consumption was 169.4 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...