./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-properties/list_search-2.i --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/list-properties/list_search-2.i -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 d4b81a46ec2331214cca2fd1ae780369dc773284 ......................................................................................................................... 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/list-properties/list_search-2.i -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 d4b81a46ec2331214cca2fd1ae780369dc773284 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:48:10,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:48:10,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:48:10,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:48:10,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:48:10,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:48:10,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:48:10,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:48:10,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:48:10,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:48:10,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:48:10,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:48:10,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:48:10,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:48:10,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:48:10,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:48:10,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:48:10,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:48:10,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:48:10,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:48:10,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:48:10,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:48:10,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:48:10,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:48:10,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:48:10,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:48:10,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:48:10,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:48:10,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:48:10,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:48:10,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:48:10,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:48:10,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:48:10,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:48:10,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:48:10,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:48:10,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:48:10,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:48:10,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:48:10,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:48:10,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:48:10,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 02:48:10,988 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:48:10,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:48:10,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:48:10,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:48:10,991 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:48:10,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:48:10,992 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:48:10,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:48:10,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:48:10,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:48:10,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:48:10,994 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:48:10,994 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:48:10,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:48:10,995 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:48:10,995 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:48:10,996 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:48:10,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:48:10,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:48:10,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:48:10,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:48:10,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:48:10,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:48:10,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:48:10,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:48:10,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:48:10,998 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 -> d4b81a46ec2331214cca2fd1ae780369dc773284 [2019-11-28 02:48:11,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:48:11,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:48:11,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:48:11,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:48:11,355 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:48:11,355 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list_search-2.i [2019-11-28 02:48:11,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a771dc21/a5b3818567de4607ae4e19d6ee416ba4/FLAG20c2fcd69 [2019-11-28 02:48:12,043 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:48:12,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-2.i [2019-11-28 02:48:12,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a771dc21/a5b3818567de4607ae4e19d6ee416ba4/FLAG20c2fcd69 [2019-11-28 02:48:12,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a771dc21/a5b3818567de4607ae4e19d6ee416ba4 [2019-11-28 02:48:12,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:48:12,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:48:12,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:12,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:48:12,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:48:12,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:12" (1/1) ... [2019-11-28 02:48:12,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699f7eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:12, skipping insertion in model container [2019-11-28 02:48:12,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:12" (1/1) ... [2019-11-28 02:48:12,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:48:12,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:12,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:12,856 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 02:48:12,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e76d097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:12, skipping insertion in model container [2019-11-28 02:48:12,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:12,857 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 02:48:12,860 INFO L168 Benchmark]: Toolchain (without parser) took 559.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:12,861 INFO L168 Benchmark]: CDTParser took 0.25 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 02:48:12,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:12,866 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 556.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 781]: 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 02:48:14,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:48:14,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:48:14,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:48:14,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:48:14,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:48:14,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:48:14,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:48:14,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:48:14,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:48:14,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:48:14,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:48:14,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:48:14,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:48:14,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:48:14,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:48:14,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:48:14,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:48:14,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:48:14,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:48:14,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:48:14,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:48:14,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:48:14,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:48:14,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:48:14,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:48:14,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:48:14,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:48:14,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:48:14,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:48:14,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:48:14,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:48:14,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:48:14,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:48:14,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:48:14,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:48:14,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:48:14,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:48:14,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:48:14,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:48:14,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:48:14,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-11-28 02:48:14,863 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:48:14,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:48:14,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:48:14,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:48:14,867 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:48:14,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:48:14,868 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:48:14,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:48:14,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:48:14,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:48:14,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:48:14,870 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:48:14,870 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:48:14,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:48:14,871 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:48:14,871 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 02:48:14,871 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 02:48:14,871 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:48:14,871 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:48:14,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:48:14,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:48:14,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:48:14,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:48:14,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:48:14,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:48:14,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:48:14,874 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 02:48:14,874 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 02:48:14,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 02:48:14,874 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 -> d4b81a46ec2331214cca2fd1ae780369dc773284 [2019-11-28 02:48:15,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:48:15,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:48:15,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:48:15,211 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:48:15,212 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:48:15,212 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list_search-2.i [2019-11-28 02:48:15,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dfed3cf3/0d8e4ce0fffd4774bc3f90d10bae3a5b/FLAGe0a1ea63a [2019-11-28 02:48:15,887 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:48:15,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-2.i [2019-11-28 02:48:15,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dfed3cf3/0d8e4ce0fffd4774bc3f90d10bae3a5b/FLAGe0a1ea63a [2019-11-28 02:48:16,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dfed3cf3/0d8e4ce0fffd4774bc3f90d10bae3a5b [2019-11-28 02:48:16,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:48:16,093 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:48:16,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:16,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:48:16,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:48:16,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:16" (1/1) ... [2019-11-28 02:48:16,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6033d41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16, skipping insertion in model container [2019-11-28 02:48:16,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:16" (1/1) ... [2019-11-28 02:48:16,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:48:16,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:16,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:16,704 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 02:48:16,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:16,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:16,792 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:48:16,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:16,979 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:48:16,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16 WrapperNode [2019-11-28 02:48:16,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:16,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:48:16,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:48:16,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:48:17,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16" (1/1) ... [2019-11-28 02:48:17,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16" (1/1) ... [2019-11-28 02:48:17,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16" (1/1) ... [2019-11-28 02:48:17,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16" (1/1) ... [2019-11-28 02:48:17,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16" (1/1) ... [2019-11-28 02:48:17,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16" (1/1) ... [2019-11-28 02:48:17,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16" (1/1) ... [2019-11-28 02:48:17,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:48:17,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:48:17,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:48:17,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:48:17,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16" (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 02:48:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:48:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:48:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 02:48:17,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-28 02:48:17,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:48:17,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:48:17,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:48:17,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:48:17,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:48:17,250 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-11-28 02:48:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_list [2019-11-28 02:48:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-11-28 02:48:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:48:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:48:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-28 02:48:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-11-28 02:48:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-11-28 02:48:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-11-28 02:48:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-11-28 02:48:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-11-28 02:48:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-11-28 02:48:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-11-28 02:48:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-11-28 02:48:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-11-28 02:48:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-11-28 02:48:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-11-28 02:48:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-11-28 02:48:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-11-28 02:48:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-11-28 02:48:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-11-28 02:48:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-11-28 02:48:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-11-28 02:48:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-11-28 02:48:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-11-28 02:48:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-11-28 02:48:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-11-28 02:48:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-11-28 02:48:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-11-28 02:48:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-11-28 02:48:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-11-28 02:48:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-11-28 02:48:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-11-28 02:48:17,265 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-11-28 02:48:17,265 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-11-28 02:48:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-11-28 02:48:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-11-28 02:48:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-11-28 02:48:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-11-28 02:48:17,267 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-11-28 02:48:17,267 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-11-28 02:48:17,267 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-11-28 02:48:17,268 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-11-28 02:48:17,268 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-11-28 02:48:17,268 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-28 02:48:17,268 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-11-28 02:48:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-11-28 02:48:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-11-28 02:48:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-11-28 02:48:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-11-28 02:48:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-11-28 02:48:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-11-28 02:48:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-11-28 02:48:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-11-28 02:48:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-11-28 02:48:17,272 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-11-28 02:48:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-11-28 02:48:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-11-28 02:48:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-11-28 02:48:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-11-28 02:48:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-11-28 02:48:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-11-28 02:48:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-11-28 02:48:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-11-28 02:48:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-11-28 02:48:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-11-28 02:48:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-11-28 02:48:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-11-28 02:48:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-11-28 02:48:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-11-28 02:48:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-11-28 02:48:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-11-28 02:48:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-11-28 02:48:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-11-28 02:48:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-11-28 02:48:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-11-28 02:48:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-11-28 02:48:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-11-28 02:48:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-28 02:48:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-11-28 02:48:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-11-28 02:48:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-11-28 02:48:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-11-28 02:48:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-11-28 02:48:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-11-28 02:48:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-11-28 02:48:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-11-28 02:48:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-11-28 02:48:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-11-28 02:48:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-11-28 02:48:17,282 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-11-28 02:48:17,282 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-11-28 02:48:17,282 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-11-28 02:48:17,282 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-11-28 02:48:17,282 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-11-28 02:48:17,283 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-11-28 02:48:17,283 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-11-28 02:48:17,283 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-11-28 02:48:17,283 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-11-28 02:48:17,283 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-11-28 02:48:17,283 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-11-28 02:48:17,284 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-11-28 02:48:17,284 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-11-28 02:48:17,284 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-11-28 02:48:17,285 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-11-28 02:48:17,285 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-11-28 02:48:17,286 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:48:17,286 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:48:17,286 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:48:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:48:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:48:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:48:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:48:17,288 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:48:17,288 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:48:17,288 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:48:17,288 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:48:17,289 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:48:17,289 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:48:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:48:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:48:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:48:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:48:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:48:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:48:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:48:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:48:17,295 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:48:17,296 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:48:17,296 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:48:17,296 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:48:17,304 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:48:17,304 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:48:17,305 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:48:17,305 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:48:17,305 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:48:17,305 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:48:17,305 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:48:17,306 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:48:17,306 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:48:17,306 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:48:17,306 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:48:17,306 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:48:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:48:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:48:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:48:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:48:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:48:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:48:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:48:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:48:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:48:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:48:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:48:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:48:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:48:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:48:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:48:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:48:17,310 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:48:17,310 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:48:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:48:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:48:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:48:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:48:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:48:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:48:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:48:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:48:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:48:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:48:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:48:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:48:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:48:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:48:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:48:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:48:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:48:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:48:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:48:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:48:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:48:17,315 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:48:17,315 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:48:17,315 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:48:17,315 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:48:17,315 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:48:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:48:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:48:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:48:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:48:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:48:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:48:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:48:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:48:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:48:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:48:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:48:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:48:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:48:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:48:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:48:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:48:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:48:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:48:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:48:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:48:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:48:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:48:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:48:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:48:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:48:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:48:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-11-28 02:48:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 02:48:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:48:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure delete_list [2019-11-28 02:48:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:48:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:48:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-11-28 02:48:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:48:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 02:48:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:48:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:48:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:48:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 02:48:18,302 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:48:18,302 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 02:48:18,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:18 BoogieIcfgContainer [2019-11-28 02:48:18,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:48:18,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:48:18,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:48:18,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:48:18,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:48:16" (1/3) ... [2019-11-28 02:48:18,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391a4444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:18, skipping insertion in model container [2019-11-28 02:48:18,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:16" (2/3) ... [2019-11-28 02:48:18,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391a4444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:18, skipping insertion in model container [2019-11-28 02:48:18,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:18" (3/3) ... [2019-11-28 02:48:18,316 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-2.i [2019-11-28 02:48:18,328 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:48:18,339 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 33 error locations. [2019-11-28 02:48:18,354 INFO L249 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2019-11-28 02:48:18,380 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:48:18,381 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:48:18,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:48:18,382 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:48:18,386 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:48:18,386 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:48:18,386 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:48:18,387 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:48:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2019-11-28 02:48:18,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 02:48:18,426 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:18,427 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:18,428 INFO L410 AbstractCegarLoop]: === Iteration 1 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:18,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:18,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1632810274, now seen corresponding path program 1 times [2019-11-28 02:48:18,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:18,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065570415] [2019-11-28 02:48:18,454 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 02:48:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:18,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 02:48:18,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:18,827 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 02:48:18,827 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:18,892 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 02:48:18,893 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065570415] [2019-11-28 02:48:18,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:18,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 02:48:18,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454316744] [2019-11-28 02:48:18,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:48:18,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:18,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:48:18,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:48:18,922 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 3 states. [2019-11-28 02:48:18,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:18,993 INFO L93 Difference]: Finished difference Result 109 states and 118 transitions. [2019-11-28 02:48:18,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:48:18,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 02:48:18,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:19,011 INFO L225 Difference]: With dead ends: 109 [2019-11-28 02:48:19,012 INFO L226 Difference]: Without dead ends: 106 [2019-11-28 02:48:19,014 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:48:19,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-28 02:48:19,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2019-11-28 02:48:19,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-28 02:48:19,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2019-11-28 02:48:19,089 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 10 [2019-11-28 02:48:19,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:19,090 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2019-11-28 02:48:19,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:48:19,090 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2019-11-28 02:48:19,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 02:48:19,091 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:19,091 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:19,302 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 02:48:19,303 INFO L410 AbstractCegarLoop]: === Iteration 2 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:19,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:19,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1632810018, now seen corresponding path program 1 times [2019-11-28 02:48:19,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:19,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100267891] [2019-11-28 02:48:19,305 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 02:48:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:19,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 02:48:19,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:19,561 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 02:48:19,562 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:19,567 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:19,568 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:19,568 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:19,575 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 02:48:19,575 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:19,583 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 02:48:19,584 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100267891] [2019-11-28 02:48:19,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:19,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 02:48:19,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818050941] [2019-11-28 02:48:19,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:48:19,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:19,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:48:19,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:48:19,587 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand 3 states. [2019-11-28 02:48:19,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:19,764 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2019-11-28 02:48:19,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:48:19,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 02:48:19,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:19,766 INFO L225 Difference]: With dead ends: 101 [2019-11-28 02:48:19,766 INFO L226 Difference]: Without dead ends: 101 [2019-11-28 02:48:19,767 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:48:19,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-28 02:48:19,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-28 02:48:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-28 02:48:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 110 transitions. [2019-11-28 02:48:19,777 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 110 transitions. Word has length 10 [2019-11-28 02:48:19,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:19,777 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 110 transitions. [2019-11-28 02:48:19,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:48:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2019-11-28 02:48:19,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 02:48:19,778 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:19,778 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:19,999 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 02:48:20,000 INFO L410 AbstractCegarLoop]: === Iteration 3 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:20,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:20,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1632810019, now seen corresponding path program 1 times [2019-11-28 02:48:20,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:20,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584810871] [2019-11-28 02:48:20,001 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 02:48:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:20,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:48:20,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:20,201 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 02:48:20,201 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:20,214 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:20,215 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:20,215 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:48:20,225 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 02:48:20,226 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:20,279 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 02:48:20,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584810871] [2019-11-28 02:48:20,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:20,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-28 02:48:20,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405991397] [2019-11-28 02:48:20,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:48:20,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:20,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:48:20,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:48:20,282 INFO L87 Difference]: Start difference. First operand 101 states and 110 transitions. Second operand 4 states. [2019-11-28 02:48:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:20,570 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2019-11-28 02:48:20,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:48:20,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 02:48:20,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:20,573 INFO L225 Difference]: With dead ends: 97 [2019-11-28 02:48:20,573 INFO L226 Difference]: Without dead ends: 97 [2019-11-28 02:48:20,574 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 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 02:48:20,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-28 02:48:20,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2019-11-28 02:48:20,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-28 02:48:20,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2019-11-28 02:48:20,588 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 10 [2019-11-28 02:48:20,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:20,588 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2019-11-28 02:48:20,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:48:20,589 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2019-11-28 02:48:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-28 02:48:20,591 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:20,593 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:20,793 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 02:48:20,794 INFO L410 AbstractCegarLoop]: === Iteration 4 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:20,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:20,795 INFO L82 PathProgramCache]: Analyzing trace with hash -909866074, now seen corresponding path program 1 times [2019-11-28 02:48:20,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:20,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767724963] [2019-11-28 02:48:20,798 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 02:48:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:21,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:48:21,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:21,173 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 02:48:21,173 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:21,177 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:21,178 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:21,178 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-28 02:48:21,208 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:21,286 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-28 02:48:21,287 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767724963] [2019-11-28 02:48:21,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:21,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 02:48:21,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674214959] [2019-11-28 02:48:21,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:48:21,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:21,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:48:21,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:48:21,290 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand 5 states. [2019-11-28 02:48:21,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:21,800 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2019-11-28 02:48:21,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 02:48:21,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-11-28 02:48:21,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:21,805 INFO L225 Difference]: With dead ends: 124 [2019-11-28 02:48:21,806 INFO L226 Difference]: Without dead ends: 124 [2019-11-28 02:48:21,806 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:48:21,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-28 02:48:21,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 99. [2019-11-28 02:48:21,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-28 02:48:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 110 transitions. [2019-11-28 02:48:21,816 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 110 transitions. Word has length 44 [2019-11-28 02:48:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:21,816 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 110 transitions. [2019-11-28 02:48:21,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:48:21,817 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 110 transitions. [2019-11-28 02:48:21,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-28 02:48:21,818 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:21,818 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:22,032 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 02:48:22,032 INFO L410 AbstractCegarLoop]: === Iteration 5 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:22,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:22,033 INFO L82 PathProgramCache]: Analyzing trace with hash -909866073, now seen corresponding path program 1 times [2019-11-28 02:48:22,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:22,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84716265] [2019-11-28 02:48:22,034 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 02:48:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:22,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 02:48:22,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:22,378 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 02:48:22,378 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:22,387 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:22,387 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:22,388 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:48:22,431 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-28 02:48:22,431 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:22,696 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-28 02:48:22,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84716265] [2019-11-28 02:48:22,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:22,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-28 02:48:22,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368856589] [2019-11-28 02:48:22,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:48:22,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:22,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:48:22,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:48:22,698 INFO L87 Difference]: Start difference. First operand 99 states and 110 transitions. Second operand 8 states. [2019-11-28 02:48:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:23,812 INFO L93 Difference]: Finished difference Result 144 states and 158 transitions. [2019-11-28 02:48:23,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:48:23,813 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2019-11-28 02:48:23,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:23,814 INFO L225 Difference]: With dead ends: 144 [2019-11-28 02:48:23,814 INFO L226 Difference]: Without dead ends: 144 [2019-11-28 02:48:23,815 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-11-28 02:48:23,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-11-28 02:48:23,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 110. [2019-11-28 02:48:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-28 02:48:23,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2019-11-28 02:48:23,824 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 44 [2019-11-28 02:48:23,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:23,825 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2019-11-28 02:48:23,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:48:23,825 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2019-11-28 02:48:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-28 02:48:23,826 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:23,827 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:24,035 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 02:48:24,036 INFO L410 AbstractCegarLoop]: === Iteration 6 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:24,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:24,036 INFO L82 PathProgramCache]: Analyzing trace with hash -94516067, now seen corresponding path program 1 times [2019-11-28 02:48:24,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:24,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842442518] [2019-11-28 02:48:24,038 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 02:48:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:24,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:48:24,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-28 02:48:24,353 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-28 02:48:24,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842442518] [2019-11-28 02:48:24,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:24,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-28 02:48:24,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242909013] [2019-11-28 02:48:24,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:48:24,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:24,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:48:24,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:48:24,425 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand 5 states. [2019-11-28 02:48:24,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:24,616 INFO L93 Difference]: Finished difference Result 129 states and 137 transitions. [2019-11-28 02:48:24,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:48:24,617 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2019-11-28 02:48:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:24,618 INFO L225 Difference]: With dead ends: 129 [2019-11-28 02:48:24,618 INFO L226 Difference]: Without dead ends: 129 [2019-11-28 02:48:24,619 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:48:24,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-28 02:48:24,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 110. [2019-11-28 02:48:24,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-28 02:48:24,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 126 transitions. [2019-11-28 02:48:24,625 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 126 transitions. Word has length 48 [2019-11-28 02:48:24,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:24,626 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 126 transitions. [2019-11-28 02:48:24,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:48:24,626 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 126 transitions. [2019-11-28 02:48:24,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-28 02:48:24,627 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:24,628 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:24,848 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 02:48:24,849 INFO L410 AbstractCegarLoop]: === Iteration 7 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:24,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:24,850 INFO L82 PathProgramCache]: Analyzing trace with hash -281540067, now seen corresponding path program 1 times [2019-11-28 02:48:24,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:24,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511844767] [2019-11-28 02:48:24,851 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 02:48:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:25,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-28 02:48:25,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:25,229 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 02:48:25,230 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:25,238 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:25,239 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:25,239 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:25,298 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-28 02:48:25,298 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:25,308 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:25,309 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:25,309 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-11-28 02:48:25,397 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:25,397 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 46 [2019-11-28 02:48:25,400 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:25,426 INFO L588 ElimStorePlain]: treesize reduction 26, result has 40.9 percent of original size [2019-11-28 02:48:25,426 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:25,427 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2019-11-28 02:48:25,482 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2019-11-28 02:48:25,484 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:25,493 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:25,494 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 02:48:25,495 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:13 [2019-11-28 02:48:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-28 02:48:25,554 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:26,062 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-28 02:48:26,063 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511844767] [2019-11-28 02:48:26,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:48:26,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 16 [2019-11-28 02:48:26,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66275211] [2019-11-28 02:48:26,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-28 02:48:26,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:26,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-28 02:48:26,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2019-11-28 02:48:26,065 INFO L87 Difference]: Start difference. First operand 110 states and 126 transitions. Second operand 17 states. [2019-11-28 02:48:27,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:27,913 INFO L93 Difference]: Finished difference Result 137 states and 150 transitions. [2019-11-28 02:48:27,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-28 02:48:27,915 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 47 [2019-11-28 02:48:27,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:27,916 INFO L225 Difference]: With dead ends: 137 [2019-11-28 02:48:27,916 INFO L226 Difference]: Without dead ends: 137 [2019-11-28 02:48:27,917 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756 [2019-11-28 02:48:27,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-28 02:48:27,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 116. [2019-11-28 02:48:27,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-28 02:48:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 133 transitions. [2019-11-28 02:48:27,925 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 133 transitions. Word has length 47 [2019-11-28 02:48:27,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:27,925 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 133 transitions. [2019-11-28 02:48:27,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-28 02:48:27,925 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 133 transitions. [2019-11-28 02:48:27,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-28 02:48:27,926 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:27,927 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:28,133 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 02:48:28,136 INFO L410 AbstractCegarLoop]: === Iteration 8 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:28,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:28,136 INFO L82 PathProgramCache]: Analyzing trace with hash -281540066, now seen corresponding path program 1 times [2019-11-28 02:48:28,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:28,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67538260] [2019-11-28 02:48:28,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-11-28 02:48:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:28,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-28 02:48:28,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:28,520 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 02:48:28,520 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,526 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:28,527 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,527 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:48:28,611 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-28 02:48:28,612 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,631 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:28,636 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-28 02:48:28,637 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,650 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:28,651 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,651 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2019-11-28 02:48:28,746 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:28,747 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 44 [2019-11-28 02:48:28,748 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,779 INFO L588 ElimStorePlain]: treesize reduction 26, result has 49.0 percent of original size [2019-11-28 02:48:28,780 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,780 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:25 [2019-11-28 02:48:28,855 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2019-11-28 02:48:28,856 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,867 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:28,871 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-28 02:48:28,871 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:28,881 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:28,882 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 02:48:28,883 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:16 [2019-11-28 02:48:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-28 02:48:28,960 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:30,902 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-11-28 02:48:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-28 02:48:31,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67538260] [2019-11-28 02:48:31,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:48:31,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-28 02:48:31,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928215192] [2019-11-28 02:48:31,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-28 02:48:31,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:31,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-28 02:48:31,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2019-11-28 02:48:31,241 INFO L87 Difference]: Start difference. First operand 116 states and 133 transitions. Second operand 22 states. [2019-11-28 02:48:36,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:36,196 INFO L93 Difference]: Finished difference Result 149 states and 161 transitions. [2019-11-28 02:48:36,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-28 02:48:36,197 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 47 [2019-11-28 02:48:36,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:36,199 INFO L225 Difference]: With dead ends: 149 [2019-11-28 02:48:36,199 INFO L226 Difference]: Without dead ends: 149 [2019-11-28 02:48:36,200 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=248, Invalid=1012, Unknown=0, NotChecked=0, Total=1260 [2019-11-28 02:48:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-11-28 02:48:36,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 116. [2019-11-28 02:48:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-28 02:48:36,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 132 transitions. [2019-11-28 02:48:36,207 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 132 transitions. Word has length 47 [2019-11-28 02:48:36,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:36,208 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 132 transitions. [2019-11-28 02:48:36,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-28 02:48:36,208 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 132 transitions. [2019-11-28 02:48:36,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-28 02:48:36,209 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:36,209 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:36,421 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-11-28 02:48:36,422 INFO L410 AbstractCegarLoop]: === Iteration 9 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:36,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:36,423 INFO L82 PathProgramCache]: Analyzing trace with hash 611268500, now seen corresponding path program 1 times [2019-11-28 02:48:36,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:36,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81718904] [2019-11-28 02:48:36,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-11-28 02:48:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:36,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-28 02:48:36,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:36,813 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-28 02:48:36,814 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:36,821 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:36,821 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:36,821 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-11-28 02:48:36,896 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2019-11-28 02:48:36,896 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:36,898 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:36,898 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:36,899 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2019-11-28 02:48:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-28 02:48:36,944 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:48:37,252 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-28 02:48:37,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81718904] [2019-11-28 02:48:37,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:48:37,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 17 [2019-11-28 02:48:37,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976519089] [2019-11-28 02:48:37,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-28 02:48:37,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:48:37,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-28 02:48:37,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2019-11-28 02:48:37,255 INFO L87 Difference]: Start difference. First operand 116 states and 132 transitions. Second operand 17 states. [2019-11-28 02:48:38,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:38,699 INFO L93 Difference]: Finished difference Result 139 states and 146 transitions. [2019-11-28 02:48:38,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-28 02:48:38,700 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 51 [2019-11-28 02:48:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:38,702 INFO L225 Difference]: With dead ends: 139 [2019-11-28 02:48:38,702 INFO L226 Difference]: Without dead ends: 139 [2019-11-28 02:48:38,706 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=199, Invalid=793, Unknown=0, NotChecked=0, Total=992 [2019-11-28 02:48:38,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-11-28 02:48:38,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 116. [2019-11-28 02:48:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-28 02:48:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 131 transitions. [2019-11-28 02:48:38,712 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 131 transitions. Word has length 51 [2019-11-28 02:48:38,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:38,712 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 131 transitions. [2019-11-28 02:48:38,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-28 02:48:38,713 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 131 transitions. [2019-11-28 02:48:38,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-11-28 02:48:38,714 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:38,714 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:38,927 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-11-28 02:48:38,928 INFO L410 AbstractCegarLoop]: === Iteration 10 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr4REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr1REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr0REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-11-28 02:48:38,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:38,929 INFO L82 PathProgramCache]: Analyzing trace with hash 711058502, now seen corresponding path program 2 times [2019-11-28 02:48:38,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:48:38,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558402386] [2019-11-28 02:48:38,931 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-11-28 02:48:39,274 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 02:48:39,274 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 02:48:39,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-28 02:48:39,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:39,309 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 02:48:39,309 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:39,311 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:39,311 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:39,311 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:48:39,368 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-28 02:48:39,368 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:39,380 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:39,381 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:39,381 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-11-28 02:48:39,458 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:39,459 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 61 [2019-11-28 02:48:39,460 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:39,490 INFO L588 ElimStorePlain]: treesize reduction 26, result has 50.0 percent of original size [2019-11-28 02:48:39,491 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:39,491 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:26 [2019-11-28 02:48:39,630 INFO L404 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_156|], 2=[|v_#memory_$Pointer$.base_164|]} [2019-11-28 02:48:39,639 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-28 02:48:39,639 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:39,672 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:39,680 INFO L508 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 02:48:39,716 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:39,716 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 02:48:39,717 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:49 [2019-11-28 02:48:41,602 WARN L192 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 32 [2019-11-28 02:48:43,460 WARN L192 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 30 [2019-11-28 02:48:43,536 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:43,536 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 68 [2019-11-28 02:48:43,540 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:43,661 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2019-11-28 02:48:43,661 INFO L588 ElimStorePlain]: treesize reduction 40, result has 60.8 percent of original size [2019-11-28 02:48:43,704 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:43,704 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 66 [2019-11-28 02:48:43,705 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:43,705 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:43,705 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:43,709 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:43,710 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:43,710 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:43,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:48:43,721 INFO L404 ElimStorePlain]: Different costs {0=[v_arrayElimCell_12], 1=[v_arrayElimCell_11]} [2019-11-28 02:48:43,925 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-11-28 02:48:43,926 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: This case should habe been handled by DER at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:192) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.(DerPreprocessor.java:95) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:303) 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.doElimOneRec(ElimStorePlain.java:267) 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) 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 02:48:43,932 INFO L168 Benchmark]: Toolchain (without parser) took 27839.81 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 260.6 MB). Free memory was 951.0 MB in the beginning and 852.4 MB in the end (delta: 98.6 MB). Peak memory consumption was 359.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:43,933 INFO L168 Benchmark]: CDTParser took 0.35 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 02:48:43,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 886.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.0 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -79.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:43,935 INFO L168 Benchmark]: Boogie Preprocessor took 177.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:43,940 INFO L168 Benchmark]: RCFGBuilder took 1145.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 941.0 MB in the end (delta: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:43,940 INFO L168 Benchmark]: TraceAbstraction took 25625.90 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.6 MB). Free memory was 941.0 MB in the beginning and 852.4 MB in the end (delta: 88.5 MB). Peak memory consumption was 263.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:43,946 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 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 886.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.0 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -79.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 177.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1145.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 941.0 MB in the end (delta: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25625.90 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.6 MB). Free memory was 941.0 MB in the beginning and 852.4 MB in the end (delta: 88.5 MB). Peak memory consumption was 263.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: This case should habe been handled by DER: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...