./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/heap-manipulation/bubble_sort_linux-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 ea70fe63854da4e5982713e252f1eed95e7b26c9 ....................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/heap-manipulation/bubble_sort_linux-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 ea70fe63854da4e5982713e252f1eed95e7b26c9 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 16:03:08,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 16:03:08,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 16:03:08,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 16:03:08,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 16:03:08,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 16:03:08,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 16:03:08,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 16:03:08,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 16:03:08,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 16:03:08,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 16:03:08,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 16:03:08,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 16:03:08,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 16:03:08,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 16:03:08,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 16:03:08,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 16:03:08,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 16:03:08,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 16:03:08,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 16:03:08,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 16:03:08,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 16:03:08,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 16:03:08,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 16:03:08,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 16:03:08,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 16:03:08,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 16:03:08,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 16:03:08,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 16:03:08,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 16:03:08,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 16:03:08,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 16:03:08,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 16:03:08,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 16:03:08,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 16:03:08,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 16:03:08,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 16:03:08,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 16:03:08,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 16:03:08,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 16:03:08,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 16:03:08,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-08-30 16:03:08,955 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 16:03:08,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 16:03:08,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 16:03:08,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 16:03:08,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 16:03:08,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 16:03:08,961 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 16:03:08,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 16:03:08,961 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 16:03:08,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 16:03:08,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 16:03:08,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 16:03:08,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 16:03:08,963 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 16:03:08,963 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 16:03:08,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 16:03:08,963 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 16:03:08,963 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 16:03:08,964 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 16:03:08,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 16:03:08,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 16:03:08,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 16:03:08,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 16:03:08,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 16:03:08,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 16:03:08,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 16:03:08,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 16:03:08,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 16:03:08,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea70fe63854da4e5982713e252f1eed95e7b26c9 [2021-08-30 16:03:09,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 16:03:09,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 16:03:09,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 16:03:09,348 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 16:03:09,349 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 16:03:09,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-08-30 16:03:09,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1688e8d/399cbebaf44a4fd9921f2455c0088180/FLAGfeb5b413e [2021-08-30 16:03:09,916 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 16:03:09,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-08-30 16:03:09,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1688e8d/399cbebaf44a4fd9921f2455c0088180/FLAGfeb5b413e [2021-08-30 16:03:10,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1688e8d/399cbebaf44a4fd9921f2455c0088180 [2021-08-30 16:03:10,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 16:03:10,218 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 16:03:10,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 16:03:10,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 16:03:10,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 16:03:10,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4114c2f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10, skipping insertion in model container [2021-08-30 16:03:10,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 16:03:10,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 16:03:10,616 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-08-30 16:03:10,640 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-08-30 16:03:10,642 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-08-30 16:03:10,642 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-08-30 16:03:10,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 16:03:10,674 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) [2021-08-30 16:03:10,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@ae2c8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10, skipping insertion in model container [2021-08-30 16:03:10,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 16:03:10,675 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-30 16:03:10,677 INFO L158 Benchmark]: Toolchain (without parser) took 458.05ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.6MB in the beginning and 41.9MB in the end (delta: -14.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-08-30 16:03:10,678 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 16:03:10,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.49ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.4MB in the beginning and 42.1MB in the end (delta: -14.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-08-30 16:03:10,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.49ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.4MB in the beginning and 42.1MB in the end (delta: -14.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: 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 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 16:03:12,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 16:03:12,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 16:03:12,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 16:03:12,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 16:03:12,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 16:03:12,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 16:03:12,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 16:03:12,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 16:03:12,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 16:03:12,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 16:03:12,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 16:03:12,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 16:03:12,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 16:03:12,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 16:03:12,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 16:03:12,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 16:03:12,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 16:03:12,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 16:03:12,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 16:03:12,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 16:03:12,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 16:03:12,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 16:03:12,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 16:03:12,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 16:03:12,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 16:03:12,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 16:03:12,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 16:03:12,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 16:03:12,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 16:03:12,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 16:03:12,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 16:03:12,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 16:03:12,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 16:03:12,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 16:03:12,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 16:03:12,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 16:03:12,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 16:03:12,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 16:03:12,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 16:03:12,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 16:03:12,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2021-08-30 16:03:15,639 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 16:03:15,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 16:03:15,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 16:03:15,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 16:03:15,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 16:03:15,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 16:03:15,644 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 16:03:15,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 16:03:15,644 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 16:03:15,644 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 16:03:15,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 16:03:15,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 16:03:15,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 16:03:15,646 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 16:03:15,646 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 16:03:15,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 16:03:15,646 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 16:03:15,655 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 16:03:15,655 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 16:03:15,655 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 16:03:15,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 16:03:15,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 16:03:15,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 16:03:15,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 16:03:15,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 16:03:15,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 16:03:15,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 16:03:15,657 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 16:03:15,657 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 16:03:15,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 16:03:15,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 16:03:15,658 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea70fe63854da4e5982713e252f1eed95e7b26c9 [2021-08-30 16:03:15,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 16:03:16,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 16:03:16,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 16:03:16,018 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 16:03:16,018 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 16:03:16,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-08-30 16:03:16,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8501f6438/a3b64fa867444bc08d3299bce4955ab6/FLAG784944741 [2021-08-30 16:03:16,536 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 16:03:16,536 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-08-30 16:03:16,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8501f6438/a3b64fa867444bc08d3299bce4955ab6/FLAG784944741 [2021-08-30 16:03:17,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8501f6438/a3b64fa867444bc08d3299bce4955ab6 [2021-08-30 16:03:17,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 16:03:17,338 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 16:03:17,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 16:03:17,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 16:03:17,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 16:03:17,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:17,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765f392f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17, skipping insertion in model container [2021-08-30 16:03:17,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:17,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 16:03:17,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 16:03:17,703 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-08-30 16:03:17,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 16:03:17,746 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-30 16:03:17,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 16:03:17,777 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-08-30 16:03:17,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 16:03:17,799 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 16:03:17,831 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-08-30 16:03:17,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 16:03:17,899 INFO L208 MainTranslator]: Completed translation [2021-08-30 16:03:17,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17 WrapperNode [2021-08-30 16:03:17,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 16:03:17,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 16:03:17,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 16:03:17,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 16:03:17,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:17,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:17,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:17,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:17,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:17,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:17,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:18,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 16:03:18,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 16:03:18,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 16:03:18,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 16:03:18,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17" (1/1) ... [2021-08-30 16:03:18,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 16:03:18,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 16:03:18,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 16:03:18,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 16:03:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 16:03:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 16:03:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 16:03:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-08-30 16:03:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-08-30 16:03:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-08-30 16:03:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-08-30 16:03:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-08-30 16:03:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-08-30 16:03:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 16:03:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 16:03:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-30 16:03:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-08-30 16:03:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-08-30 16:03:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 16:03:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 16:03:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 16:03:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 16:03:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 16:03:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 16:03:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 16:03:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 16:03:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 16:03:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 16:03:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 16:03:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 16:03:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 16:03:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 16:03:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 16:03:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 16:03:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 16:03:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 16:03:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 16:03:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 16:03:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 16:03:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 16:03:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 16:03:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 16:03:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 16:03:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 16:03:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 16:03:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 16:03:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 16:03:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 16:03:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-08-30 16:03:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 16:03:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 16:03:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 16:03:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 16:03:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 16:03:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 16:03:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 16:03:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 16:03:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 16:03:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 16:03:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 16:03:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 16:03:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 16:03:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 16:03:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 16:03:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 16:03:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 16:03:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 16:03:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 16:03:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 16:03:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 16:03:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 16:03:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 16:03:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 16:03:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 16:03:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 16:03:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 16:03:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 16:03:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 16:03:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 16:03:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 16:03:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 16:03:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 16:03:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 16:03:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 16:03:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2021-08-30 16:03:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2021-08-30 16:03:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2021-08-30 16:03:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2021-08-30 16:03:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2021-08-30 16:03:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2021-08-30 16:03:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2021-08-30 16:03:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-08-30 16:03:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2021-08-30 16:03:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2021-08-30 16:03:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2021-08-30 16:03:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2021-08-30 16:03:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2021-08-30 16:03:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2021-08-30 16:03:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-30 16:03:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 16:03:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 16:03:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-30 16:03:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-30 16:03:18,789 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 16:03:18,790 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-08-30 16:03:18,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:03:18 BoogieIcfgContainer [2021-08-30 16:03:18,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 16:03:18,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 16:03:18,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 16:03:18,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 16:03:18,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:03:17" (1/3) ... [2021-08-30 16:03:18,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224b331c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:03:18, skipping insertion in model container [2021-08-30 16:03:18,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:17" (2/3) ... [2021-08-30 16:03:18,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224b331c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:03:18, skipping insertion in model container [2021-08-30 16:03:18,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:03:18" (3/3) ... [2021-08-30 16:03:18,801 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2021-08-30 16:03:18,806 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 16:03:18,807 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-08-30 16:03:18,853 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 16:03:18,862 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 16:03:18,863 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-08-30 16:03:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-08-30 16:03:18,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-30 16:03:18,907 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:18,908 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:18,909 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:03:18,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:18,918 INFO L82 PathProgramCache]: Analyzing trace with hash 963234318, now seen corresponding path program 1 times [2021-08-30 16:03:18,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:03:18,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492445329] [2021-08-30 16:03:18,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:18,928 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:03:18,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:03:18,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:03:18,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-30 16:03:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:19,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-30 16:03:19,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:03:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:19,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:03:19,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:19,364 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:03:19,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492445329] [2021-08-30 16:03:19,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492445329] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:03:19,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:03:19,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-30 16:03:19,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446589120] [2021-08-30 16:03:19,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-30 16:03:19,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:03:19,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-30 16:03:19,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-30 16:03:19,392 INFO L87 Difference]: Start difference. First operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:19,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:03:19,879 INFO L93 Difference]: Finished difference Result 236 states and 258 transitions. [2021-08-30 16:03:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-30 16:03:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-08-30 16:03:19,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:03:19,889 INFO L225 Difference]: With dead ends: 236 [2021-08-30 16:03:19,889 INFO L226 Difference]: Without dead ends: 233 [2021-08-30 16:03:19,891 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.08ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-30 16:03:19,893 INFO L928 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 352.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.84ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 445.10ms IncrementalHoareTripleChecker+Time [2021-08-30 16:03:19,894 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 212 Unknown, 0 Unchecked, 2.84ms Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 445.10ms Time] [2021-08-30 16:03:19,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-08-30 16:03:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-08-30 16:03:19,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 119 states have (on average 1.7563025210084033) internal successors, (209), 206 states have internal predecessors, (209), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-08-30 16:03:19,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 255 transitions. [2021-08-30 16:03:19,937 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 255 transitions. Word has length 10 [2021-08-30 16:03:19,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:03:19,937 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 255 transitions. [2021-08-30 16:03:19,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:19,938 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 255 transitions. [2021-08-30 16:03:19,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-30 16:03:19,938 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:19,938 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:19,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-30 16:03:20,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:03:20,141 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:03:20,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:20,142 INFO L82 PathProgramCache]: Analyzing trace with hash 963234380, now seen corresponding path program 1 times [2021-08-30 16:03:20,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:03:20,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878165756] [2021-08-30 16:03:20,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:20,143 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:03:20,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:03:20,144 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:03:20,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-30 16:03:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:20,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-30 16:03:20,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:03:20,445 INFO L388 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 [2021-08-30 16:03:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:20,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:03:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:20,510 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:03:20,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878165756] [2021-08-30 16:03:20,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878165756] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:03:20,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:03:20,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-30 16:03:20,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909706484] [2021-08-30 16:03:20,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 16:03:20,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:03:20,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 16:03:20,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 16:03:20,520 INFO L87 Difference]: Start difference. First operand 233 states and 255 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:21,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:03:21,048 INFO L93 Difference]: Finished difference Result 230 states and 252 transitions. [2021-08-30 16:03:21,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 16:03:21,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-08-30 16:03:21,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:03:21,050 INFO L225 Difference]: With dead ends: 230 [2021-08-30 16:03:21,050 INFO L226 Difference]: Without dead ends: 230 [2021-08-30 16:03:21,051 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 16:03:21,052 INFO L928 BasicCegarLoop]: 46 mSDtfsCounter, 8 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 403.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.31ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 498.61ms IncrementalHoareTripleChecker+Time [2021-08-30 16:03:21,053 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 89 Invalid, 406 Unknown, 0 Unchecked, 5.31ms Time], IncrementalHoareTripleChecker [2 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 498.61ms Time] [2021-08-30 16:03:21,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-08-30 16:03:21,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-08-30 16:03:21,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 119 states have (on average 1.73109243697479) internal successors, (206), 203 states have internal predecessors, (206), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-08-30 16:03:21,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 252 transitions. [2021-08-30 16:03:21,067 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 252 transitions. Word has length 10 [2021-08-30 16:03:21,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:03:21,067 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 252 transitions. [2021-08-30 16:03:21,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:21,067 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 252 transitions. [2021-08-30 16:03:21,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-30 16:03:21,068 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:21,068 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:21,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-30 16:03:21,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:03:21,278 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:03:21,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:21,278 INFO L82 PathProgramCache]: Analyzing trace with hash 963234381, now seen corresponding path program 1 times [2021-08-30 16:03:21,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:03:21,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531731330] [2021-08-30 16:03:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:21,279 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:03:21,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:03:21,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:03:21,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-30 16:03:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:21,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-30 16:03:21,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:03:21,490 INFO L388 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 [2021-08-30 16:03:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:21,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:03:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:21,603 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:03:21,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531731330] [2021-08-30 16:03:21,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531731330] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:03:21,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:03:21,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-08-30 16:03:21,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290860093] [2021-08-30 16:03:21,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 16:03:21,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:03:21,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 16:03:21,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 16:03:21,609 INFO L87 Difference]: Start difference. First operand 230 states and 252 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:22,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:03:22,388 INFO L93 Difference]: Finished difference Result 227 states and 249 transitions. [2021-08-30 16:03:22,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 16:03:22,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-08-30 16:03:22,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:03:22,390 INFO L225 Difference]: With dead ends: 227 [2021-08-30 16:03:22,390 INFO L226 Difference]: Without dead ends: 227 [2021-08-30 16:03:22,390 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.99ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 16:03:22,391 INFO L928 BasicCegarLoop]: 46 mSDtfsCounter, 10 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 643.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.69ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 751.03ms IncrementalHoareTripleChecker+Time [2021-08-30 16:03:22,391 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 89 Invalid, 404 Unknown, 0 Unchecked, 4.69ms Time], IncrementalHoareTripleChecker [3 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 751.03ms Time] [2021-08-30 16:03:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-08-30 16:03:22,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-08-30 16:03:22,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 119 states have (on average 1.7058823529411764) internal successors, (203), 200 states have internal predecessors, (203), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-08-30 16:03:22,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 249 transitions. [2021-08-30 16:03:22,402 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 249 transitions. Word has length 10 [2021-08-30 16:03:22,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:03:22,403 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 249 transitions. [2021-08-30 16:03:22,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 249 transitions. [2021-08-30 16:03:22,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-30 16:03:22,404 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:22,404 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:22,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-30 16:03:22,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:03:22,615 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:03:22,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:22,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1039428672, now seen corresponding path program 1 times [2021-08-30 16:03:22,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:03:22,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327631092] [2021-08-30 16:03:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:22,616 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:03:22,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:03:22,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:03:22,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-30 16:03:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:22,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-30 16:03:22,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:03:22,865 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-08-30 16:03:22,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-08-30 16:03:23,092 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-08-30 16:03:23,093 INFO L388 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 20 treesize of output 27 [2021-08-30 16:03:23,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:23,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:03:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:39,648 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:03:39,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327631092] [2021-08-30 16:03:39,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327631092] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:03:39,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:03:39,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-30 16:03:39,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112764228] [2021-08-30 16:03:39,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-30 16:03:39,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:03:39,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-30 16:03:39,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2021-08-30 16:03:39,650 INFO L87 Difference]: Start difference. First operand 227 states and 249 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:03:40,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:03:40,098 INFO L93 Difference]: Finished difference Result 234 states and 259 transitions. [2021-08-30 16:03:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 16:03:40,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-08-30 16:03:40,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:03:40,101 INFO L225 Difference]: With dead ends: 234 [2021-08-30 16:03:40,101 INFO L226 Difference]: Without dead ends: 234 [2021-08-30 16:03:40,101 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 16313.90ms TimeCoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2021-08-30 16:03:40,102 INFO L928 BasicCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 347.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.30ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 420 IncrementalHoareTripleChecker+Unchecked, 423.79ms IncrementalHoareTripleChecker+Time [2021-08-30 16:03:40,102 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 820 Unknown, 0 Unchecked, 4.30ms Time], IncrementalHoareTripleChecker [0 Valid, 400 Invalid, 0 Unknown, 420 Unchecked, 423.79ms Time] [2021-08-30 16:03:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-08-30 16:03:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-08-30 16:03:40,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 124 states have (on average 1.685483870967742) internal successors, (209), 204 states have internal predecessors, (209), 33 states have call successors, (33), 16 states have call predecessors, (33), 12 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-30 16:03:40,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 259 transitions. [2021-08-30 16:03:40,120 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 259 transitions. Word has length 13 [2021-08-30 16:03:40,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:03:40,121 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 259 transitions. [2021-08-30 16:03:40,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:03:40,121 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 259 transitions. [2021-08-30 16:03:40,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-30 16:03:40,121 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:40,121 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:40,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-30 16:03:40,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:03:40,331 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:03:40,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:40,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1039428673, now seen corresponding path program 1 times [2021-08-30 16:03:40,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:03:40,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797236250] [2021-08-30 16:03:40,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:40,332 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:03:40,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:03:40,332 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:03:40,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-30 16:03:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:40,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-30 16:03:40,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:03:40,565 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-08-30 16:03:40,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-08-30 16:03:40,625 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-08-30 16:03:40,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-08-30 16:03:40,973 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-08-30 16:03:40,974 INFO L388 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 3 case distinctions, treesize of input 44 treesize of output 51 [2021-08-30 16:03:41,008 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-08-30 16:03:41,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 64 [2021-08-30 16:03:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:41,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:03:50,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:50,361 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:03:50,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797236250] [2021-08-30 16:03:50,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797236250] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:03:50,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:03:50,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-30 16:03:50,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883220053] [2021-08-30 16:03:50,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 16:03:50,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:03:50,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 16:03:50,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2021-08-30 16:03:50,363 INFO L87 Difference]: Start difference. First operand 234 states and 259 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:03:54,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:03:54,316 INFO L93 Difference]: Finished difference Result 341 states and 380 transitions. [2021-08-30 16:03:54,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 16:03:54,317 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-08-30 16:03:54,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:03:54,319 INFO L225 Difference]: With dead ends: 341 [2021-08-30 16:03:54,319 INFO L226 Difference]: Without dead ends: 341 [2021-08-30 16:03:54,319 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8529.44ms TimeCoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2021-08-30 16:03:54,320 INFO L928 BasicCegarLoop]: 65 mSDtfsCounter, 199 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3362.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.70ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 695 IncrementalHoareTripleChecker+Unchecked, 3875.01ms IncrementalHoareTripleChecker+Time [2021-08-30 16:03:54,321 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 193 Invalid, 1823 Unknown, 0 Unchecked, 17.70ms Time], IncrementalHoareTripleChecker [9 Valid, 1119 Invalid, 0 Unknown, 695 Unchecked, 3875.01ms Time] [2021-08-30 16:03:54,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-08-30 16:03:54,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 292. [2021-08-30 16:03:54,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 182 states have (on average 1.7087912087912087) internal successors, (311), 259 states have internal predecessors, (311), 34 states have call successors, (34), 18 states have call predecessors, (34), 13 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-30 16:03:54,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 363 transitions. [2021-08-30 16:03:54,331 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 363 transitions. Word has length 13 [2021-08-30 16:03:54,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:03:54,331 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 363 transitions. [2021-08-30 16:03:54,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:03:54,331 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 363 transitions. [2021-08-30 16:03:54,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-30 16:03:54,332 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:54,332 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:54,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-30 16:03:54,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:03:54,542 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:03:54,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:54,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1094064828, now seen corresponding path program 1 times [2021-08-30 16:03:54,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:03:54,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059201792] [2021-08-30 16:03:54,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:54,543 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:03:54,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:03:54,544 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:03:54,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-30 16:03:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:54,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-30 16:03:54,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:03:54,850 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-08-30 16:03:54,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-08-30 16:03:55,146 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 16:03:55,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-08-30 16:03:55,239 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-08-30 16:03:55,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 60 treesize of output 15 [2021-08-30 16:03:55,310 INFO L388 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 25 treesize of output 17 [2021-08-30 16:03:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:55,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:03:55,473 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-08-30 16:03:55,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-08-30 16:04:07,057 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-08-30 16:04:09,099 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19)))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-08-30 16:04:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:04:09,273 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:04:09,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059201792] [2021-08-30 16:04:09,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059201792] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:04:09,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:04:09,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-08-30 16:04:09,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971417076] [2021-08-30 16:04:09,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-30 16:04:09,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:04:09,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-30 16:04:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=104, Unknown=6, NotChecked=42, Total=182 [2021-08-30 16:04:09,275 INFO L87 Difference]: Start difference. First operand 292 states and 363 transitions. Second operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:04:13,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:04:13,538 INFO L93 Difference]: Finished difference Result 308 states and 379 transitions. [2021-08-30 16:04:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 16:04:13,539 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-08-30 16:04:13,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:04:13,540 INFO L225 Difference]: With dead ends: 308 [2021-08-30 16:04:13,541 INFO L226 Difference]: Without dead ends: 308 [2021-08-30 16:04:13,541 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 14 SyntacticMatches, 8 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 15868.05ms TimeCoverageRelationStatistics Valid=80, Invalid=263, Unknown=7, NotChecked=70, Total=420 [2021-08-30 16:04:13,542 INFO L928 BasicCegarLoop]: 48 mSDtfsCounter, 44 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1767.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 2549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.85ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 893 IncrementalHoareTripleChecker+Unchecked, 2025.86ms IncrementalHoareTripleChecker+Time [2021-08-30 16:04:13,542 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 499 Invalid, 2549 Unknown, 0 Unchecked, 12.85ms Time], IncrementalHoareTripleChecker [12 Valid, 1644 Invalid, 0 Unknown, 893 Unchecked, 2025.86ms Time] [2021-08-30 16:04:13,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-08-30 16:04:13,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 300. [2021-08-30 16:04:13,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 188 states have (on average 1.7234042553191489) internal successors, (324), 266 states have internal predecessors, (324), 35 states have call successors, (35), 19 states have call predecessors, (35), 14 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 16:04:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 378 transitions. [2021-08-30 16:04:13,551 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 378 transitions. Word has length 16 [2021-08-30 16:04:13,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:04:13,551 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 378 transitions. [2021-08-30 16:04:13,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:04:13,552 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 378 transitions. [2021-08-30 16:04:13,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-30 16:04:13,552 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:04:13,552 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:04:13,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-30 16:04:13,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:04:13,757 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:04:13,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:04:13,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1094064827, now seen corresponding path program 1 times [2021-08-30 16:04:13,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:04:13,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636136851] [2021-08-30 16:04:13,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:04:13,758 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:04:13,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:04:13,759 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:04:13,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-30 16:04:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:04:13,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-08-30 16:04:13,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:04:14,010 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-08-30 16:04:14,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 49 [2021-08-30 16:04:14,060 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-08-30 16:04:14,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2021-08-30 16:04:14,544 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-08-30 16:04:14,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 65 [2021-08-30 16:04:14,580 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-08-30 16:04:14,581 INFO L388 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 3 case distinctions, treesize of input 60 treesize of output 67 [2021-08-30 16:04:14,796 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-08-30 16:04:14,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 116 treesize of output 71 [2021-08-30 16:04:14,846 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-08-30 16:04:14,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 68 treesize of output 23 [2021-08-30 16:04:15,046 INFO L388 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 34 treesize of output 26 [2021-08-30 16:04:15,051 INFO L388 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 23 treesize of output 15 [2021-08-30 16:04:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:04:15,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:04:18,139 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse2 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) is different from false [2021-08-30 16:04:37,274 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))) is different from false [2021-08-30 16:04:50,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:04:50,548 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:04:50,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636136851] [2021-08-30 16:04:50,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636136851] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:04:50,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:04:50,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 10] imperfect sequences [] total 18 [2021-08-30 16:04:50,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897723969] [2021-08-30 16:04:50,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-30 16:04:50,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:04:50,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-30 16:04:50,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=229, Unknown=6, NotChecked=62, Total=342 [2021-08-30 16:04:50,549 INFO L87 Difference]: Start difference. First operand 300 states and 378 transitions. Second operand has 19 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 8 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:04:52,685 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))) (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (let ((.cse4 (select |c_#length| (_ bv0 32)))) (or (= (_ bv22 32) .cse4) (= |c_~#gl_list~0.base| (_ bv0 32)) (= (_ bv2 32) .cse4) (= (_ bv0 1) (select |c_#valid| (_ bv0 32))))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv8 32) (select |c_#length| |c_~#gl_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|))))) is different from false [2021-08-30 16:04:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:04:58,219 INFO L93 Difference]: Finished difference Result 301 states and 378 transitions. [2021-08-30 16:04:58,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 16:04:58,220 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 8 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-08-30 16:04:58,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:04:58,222 INFO L225 Difference]: With dead ends: 301 [2021-08-30 16:04:58,222 INFO L226 Difference]: Without dead ends: 301 [2021-08-30 16:04:58,222 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 37250.10ms TimeCoverageRelationStatistics Valid=62, Invalid=285, Unknown=7, NotChecked=108, Total=462 [2021-08-30 16:04:58,231 INFO L928 BasicCegarLoop]: 47 mSDtfsCounter, 3 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4062.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 2845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.96ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1436 IncrementalHoareTripleChecker+Unchecked, 4723.77ms IncrementalHoareTripleChecker+Time [2021-08-30 16:04:58,232 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 574 Invalid, 2845 Unknown, 0 Unchecked, 23.96ms Time], IncrementalHoareTripleChecker [10 Valid, 1399 Invalid, 0 Unknown, 1436 Unchecked, 4723.77ms Time] [2021-08-30 16:04:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-08-30 16:04:58,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 300. [2021-08-30 16:04:58,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 188 states have (on average 1.7180851063829787) internal successors, (323), 266 states have internal predecessors, (323), 35 states have call successors, (35), 19 states have call predecessors, (35), 14 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 16:04:58,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 377 transitions. [2021-08-30 16:04:58,241 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 377 transitions. Word has length 16 [2021-08-30 16:04:58,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:04:58,241 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 377 transitions. [2021-08-30 16:04:58,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 8 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:04:58,242 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 377 transitions. [2021-08-30 16:04:58,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 16:04:58,242 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:04:58,242 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:04:58,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-30 16:04:58,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:04:58,452 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:04:58,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:04:58,453 INFO L82 PathProgramCache]: Analyzing trace with hash 443729184, now seen corresponding path program 1 times [2021-08-30 16:04:58,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:04:58,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680445639] [2021-08-30 16:04:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:04:58,454 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:04:58,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:04:58,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:04:58,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-30 16:04:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:04:58,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 16:04:58,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:04:58,620 INFO L388 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 [2021-08-30 16:04:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:04:58,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:04:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:04:58,821 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:04:58,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680445639] [2021-08-30 16:04:58,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680445639] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:04:58,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:04:58,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-30 16:04:58,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414755674] [2021-08-30 16:04:58,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 16:04:58,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:04:58,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 16:04:58,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 16:04:58,822 INFO L87 Difference]: Start difference. First operand 300 states and 377 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:05:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:05:00,772 INFO L93 Difference]: Finished difference Result 320 states and 394 transitions. [2021-08-30 16:05:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 16:05:00,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-08-30 16:05:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:05:00,774 INFO L225 Difference]: With dead ends: 320 [2021-08-30 16:05:00,774 INFO L226 Difference]: Without dead ends: 320 [2021-08-30 16:05:00,775 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 127.53ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-30 16:05:00,775 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 42 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1671.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.62ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1876.65ms IncrementalHoareTripleChecker+Time [2021-08-30 16:05:00,776 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 249 Invalid, 1220 Unknown, 0 Unchecked, 9.62ms Time], IncrementalHoareTripleChecker [5 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1876.65ms Time] [2021-08-30 16:05:00,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-08-30 16:05:00,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 312. [2021-08-30 16:05:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 198 states have (on average 1.707070707070707) internal successors, (338), 275 states have internal predecessors, (338), 36 states have call successors, (36), 21 states have call predecessors, (36), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-30 16:05:00,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 394 transitions. [2021-08-30 16:05:00,786 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 394 transitions. Word has length 17 [2021-08-30 16:05:00,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:05:00,786 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 394 transitions. [2021-08-30 16:05:00,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:05:00,786 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 394 transitions. [2021-08-30 16:05:00,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 16:05:00,787 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:05:00,787 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:05:00,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-08-30 16:05:00,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:05:00,993 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:05:00,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:05:00,993 INFO L82 PathProgramCache]: Analyzing trace with hash 443729185, now seen corresponding path program 1 times [2021-08-30 16:05:00,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:05:00,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479901867] [2021-08-30 16:05:00,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:00,994 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:05:00,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:05:00,995 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:05:00,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-30 16:05:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:01,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 16:05:01,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:01,154 INFO L388 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 [2021-08-30 16:05:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:01,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:05:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:01,757 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:05:01,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479901867] [2021-08-30 16:05:01,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479901867] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:05:01,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:05:01,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-08-30 16:05:01,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767427621] [2021-08-30 16:05:01,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 16:05:01,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:05:01,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 16:05:01,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-08-30 16:05:01,758 INFO L87 Difference]: Start difference. First operand 312 states and 394 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:05:07,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:05:07,459 INFO L93 Difference]: Finished difference Result 318 states and 390 transitions. [2021-08-30 16:05:07,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 16:05:07,460 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-08-30 16:05:07,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:05:07,462 INFO L225 Difference]: With dead ends: 318 [2021-08-30 16:05:07,462 INFO L226 Difference]: Without dead ends: 318 [2021-08-30 16:05:07,462 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 427.09ms TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-08-30 16:05:07,463 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 42 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4955.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.77ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5589.63ms IncrementalHoareTripleChecker+Time [2021-08-30 16:05:07,463 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 412 Invalid, 2042 Unknown, 0 Unchecked, 16.77ms Time], IncrementalHoareTripleChecker [5 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 5589.63ms Time] [2021-08-30 16:05:07,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-08-30 16:05:07,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 312. [2021-08-30 16:05:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 198 states have (on average 1.6868686868686869) internal successors, (334), 275 states have internal predecessors, (334), 36 states have call successors, (36), 21 states have call predecessors, (36), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-30 16:05:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 390 transitions. [2021-08-30 16:05:07,471 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 390 transitions. Word has length 17 [2021-08-30 16:05:07,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:05:07,471 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 390 transitions. [2021-08-30 16:05:07,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:05:07,472 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 390 transitions. [2021-08-30 16:05:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 16:05:07,472 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:05:07,472 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:05:07,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-30 16:05:07,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:05:07,681 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:05:07,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:05:07,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1221999107, now seen corresponding path program 1 times [2021-08-30 16:05:07,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:05:07,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573649996] [2021-08-30 16:05:07,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:07,682 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:05:07,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:05:07,682 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:05:07,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-30 16:05:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:07,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 16:05:07,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:07,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:05:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:07,963 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:05:07,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573649996] [2021-08-30 16:05:07,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573649996] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:05:07,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:05:07,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-30 16:05:07,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497742582] [2021-08-30 16:05:07,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 16:05:07,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:05:07,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 16:05:07,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 16:05:07,966 INFO L87 Difference]: Start difference. First operand 312 states and 390 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:05:08,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:05:08,997 INFO L93 Difference]: Finished difference Result 311 states and 387 transitions. [2021-08-30 16:05:08,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 16:05:08,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-08-30 16:05:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:05:08,999 INFO L225 Difference]: With dead ends: 311 [2021-08-30 16:05:08,999 INFO L226 Difference]: Without dead ends: 311 [2021-08-30 16:05:08,999 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.44ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-30 16:05:09,000 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 22 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 887.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1000.03ms IncrementalHoareTripleChecker+Time [2021-08-30 16:05:09,000 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 171 Invalid, 780 Unknown, 0 Unchecked, 3.39ms Time], IncrementalHoareTripleChecker [0 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1000.03ms Time] [2021-08-30 16:05:09,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-08-30 16:05:09,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2021-08-30 16:05:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 198 states have (on average 1.6717171717171717) internal successors, (331), 274 states have internal predecessors, (331), 36 states have call successors, (36), 21 states have call predecessors, (36), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-30 16:05:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 387 transitions. [2021-08-30 16:05:09,013 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 387 transitions. Word has length 19 [2021-08-30 16:05:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:05:09,013 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 387 transitions. [2021-08-30 16:05:09,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:05:09,014 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 387 transitions. [2021-08-30 16:05:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 16:05:09,014 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:05:09,014 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:05:09,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-30 16:05:09,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:05:09,224 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:05:09,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:05:09,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1221999108, now seen corresponding path program 1 times [2021-08-30 16:05:09,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:05:09,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876163425] [2021-08-30 16:05:09,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:09,225 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:05:09,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:05:09,226 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:05:09,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-30 16:05:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:09,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 16:05:09,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:09,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:05:09,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 6 [2021-08-30 16:05:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:10,021 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:05:10,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876163425] [2021-08-30 16:05:10,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876163425] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:05:10,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:05:10,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-08-30 16:05:10,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703586291] [2021-08-30 16:05:10,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-30 16:05:10,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:05:10,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-30 16:05:10,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-08-30 16:05:10,022 INFO L87 Difference]: Start difference. First operand 311 states and 387 transitions. Second operand has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:05:15,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:05:15,430 INFO L93 Difference]: Finished difference Result 314 states and 384 transitions. [2021-08-30 16:05:15,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 16:05:15,431 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-08-30 16:05:15,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:05:15,432 INFO L225 Difference]: With dead ends: 314 [2021-08-30 16:05:15,433 INFO L226 Difference]: Without dead ends: 314 [2021-08-30 16:05:15,433 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 712.33ms TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-08-30 16:05:15,434 INFO L928 BasicCegarLoop]: 44 mSDtfsCounter, 504 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4455.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.04ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4998.39ms IncrementalHoareTripleChecker+Time [2021-08-30 16:05:15,434 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 385 Invalid, 1839 Unknown, 0 Unchecked, 22.04ms Time], IncrementalHoareTripleChecker [54 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 4998.39ms Time] [2021-08-30 16:05:15,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-08-30 16:05:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 310. [2021-08-30 16:05:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 198 states have (on average 1.6565656565656566) internal successors, (328), 273 states have internal predecessors, (328), 36 states have call successors, (36), 21 states have call predecessors, (36), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-30 16:05:15,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 384 transitions. [2021-08-30 16:05:15,442 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 384 transitions. Word has length 19 [2021-08-30 16:05:15,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:05:15,442 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 384 transitions. [2021-08-30 16:05:15,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 16:05:15,442 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 384 transitions. [2021-08-30 16:05:15,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-30 16:05:15,443 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:05:15,443 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:05:15,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-30 16:05:15,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:05:15,653 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:05:15,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:05:15,654 INFO L82 PathProgramCache]: Analyzing trace with hash 695927283, now seen corresponding path program 1 times [2021-08-30 16:05:15,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:05:15,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728836602] [2021-08-30 16:05:15,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:15,654 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:05:15,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:05:15,655 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:05:15,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-30 16:05:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:15,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 16:05:15,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:15,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:05:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:16,043 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:05:16,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728836602] [2021-08-30 16:05:16,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728836602] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:05:16,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:05:16,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 16:05:16,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525985907] [2021-08-30 16:05:16,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 16:05:16,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:05:16,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 16:05:16,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 16:05:16,044 INFO L87 Difference]: Start difference. First operand 310 states and 384 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-30 16:05:16,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:05:16,880 INFO L93 Difference]: Finished difference Result 309 states and 381 transitions. [2021-08-30 16:05:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 16:05:16,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 38 [2021-08-30 16:05:16,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:05:16,884 INFO L225 Difference]: With dead ends: 309 [2021-08-30 16:05:16,885 INFO L226 Difference]: Without dead ends: 309 [2021-08-30 16:05:16,885 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.84ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-30 16:05:16,885 INFO L928 BasicCegarLoop]: 43 mSDtfsCounter, 311 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 681.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.01ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 788.57ms IncrementalHoareTripleChecker+Time [2021-08-30 16:05:16,886 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 128 Invalid, 493 Unknown, 0 Unchecked, 5.01ms Time], IncrementalHoareTripleChecker [15 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 788.57ms Time] [2021-08-30 16:05:16,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-08-30 16:05:16,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-08-30 16:05:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 198 states have (on average 1.6464646464646464) internal successors, (326), 272 states have internal predecessors, (326), 35 states have call successors, (35), 21 states have call predecessors, (35), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-30 16:05:16,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 381 transitions. [2021-08-30 16:05:16,895 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 381 transitions. Word has length 38 [2021-08-30 16:05:16,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:05:16,895 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 381 transitions. [2021-08-30 16:05:16,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-30 16:05:16,895 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 381 transitions. [2021-08-30 16:05:16,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-30 16:05:16,902 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:05:16,902 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1] [2021-08-30 16:05:16,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-30 16:05:17,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:05:17,113 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:05:17,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:05:17,114 INFO L82 PathProgramCache]: Analyzing trace with hash 507100171, now seen corresponding path program 1 times [2021-08-30 16:05:17,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:05:17,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778891156] [2021-08-30 16:05:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:17,115 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:05:17,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:05:17,116 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:05:17,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-30 16:05:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:17,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-30 16:05:17,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:17,354 INFO L388 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 [2021-08-30 16:05:17,608 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-30 16:05:17,608 INFO L388 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 20 treesize of output 25 [2021-08-30 16:05:17,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:17,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:05:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:18,019 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:05:18,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778891156] [2021-08-30 16:05:18,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778891156] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 16:05:18,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 16:05:18,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-30 16:05:18,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241984816] [2021-08-30 16:05:18,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 16:05:18,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:05:18,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 16:05:18,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-30 16:05:18,020 INFO L87 Difference]: Start difference. First operand 309 states and 381 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 16:05:18,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:05:18,464 INFO L93 Difference]: Finished difference Result 310 states and 380 transitions. [2021-08-30 16:05:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 16:05:18,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 38 [2021-08-30 16:05:18,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:05:18,466 INFO L225 Difference]: With dead ends: 310 [2021-08-30 16:05:18,466 INFO L226 Difference]: Without dead ends: 310 [2021-08-30 16:05:18,466 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 61 SyntacticMatches, 9 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 235.10ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-08-30 16:05:18,467 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 17 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 320.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 211 IncrementalHoareTripleChecker+Unchecked, 396.13ms IncrementalHoareTripleChecker+Time [2021-08-30 16:05:18,467 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 120 Invalid, 416 Unknown, 0 Unchecked, 1.97ms Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 211 Unchecked, 396.13ms Time] [2021-08-30 16:05:18,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-08-30 16:05:18,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 309. [2021-08-30 16:05:18,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 198 states have (on average 1.6414141414141414) internal successors, (325), 272 states have internal predecessors, (325), 35 states have call successors, (35), 21 states have call predecessors, (35), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-30 16:05:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 380 transitions. [2021-08-30 16:05:18,474 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 380 transitions. Word has length 38 [2021-08-30 16:05:18,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:05:18,475 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 380 transitions. [2021-08-30 16:05:18,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 16:05:18,475 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 380 transitions. [2021-08-30 16:05:18,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-30 16:05:18,476 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:05:18,476 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1] [2021-08-30 16:05:18,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-08-30 16:05:18,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:05:18,687 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:05:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:05:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash 507100172, now seen corresponding path program 1 times [2021-08-30 16:05:18,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:05:18,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553677140] [2021-08-30 16:05:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:18,689 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:05:18,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:05:18,690 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:05:18,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-30 16:05:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:18,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-30 16:05:18,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:19,531 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 16:05:19,531 INFO L388 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 29 treesize of output 31 [2021-08-30 16:05:19,540 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 16:05:19,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2021-08-30 16:05:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:19,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:05:22,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 53 treesize of output 49 [2021-08-30 16:05:22,366 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-08-30 16:05:22,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2021-08-30 16:05:25,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 46 treesize of output 42 [2021-08-30 16:05:27,500 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 16:05:27,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2021-08-30 16:05:27,523 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-08-30 16:05:27,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 51 [2021-08-30 16:05:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:27,800 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:05:27,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553677140] [2021-08-30 16:05:27,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553677140] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 16:05:27,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 16:05:27,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-08-30 16:05:27,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53761336] [2021-08-30 16:05:27,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-30 16:05:27,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:05:27,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-30 16:05:27,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=246, Unknown=1, NotChecked=0, Total=306 [2021-08-30 16:05:27,802 INFO L87 Difference]: Start difference. First operand 309 states and 380 transitions. Second operand has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 9 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2021-08-30 16:05:31,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:05:31,269 INFO L93 Difference]: Finished difference Result 326 states and 395 transitions. [2021-08-30 16:05:31,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 16:05:31,270 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 9 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) Word has length 38 [2021-08-30 16:05:31,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:05:31,272 INFO L225 Difference]: With dead ends: 326 [2021-08-30 16:05:31,272 INFO L226 Difference]: Without dead ends: 326 [2021-08-30 16:05:31,272 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 7683.51ms TimeCoverageRelationStatistics Valid=115, Invalid=390, Unknown=1, NotChecked=0, Total=506 [2021-08-30 16:05:31,272 INFO L928 BasicCegarLoop]: 43 mSDtfsCounter, 446 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2772.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.47ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 805 IncrementalHoareTripleChecker+Unchecked, 3137.82ms IncrementalHoareTripleChecker+Time [2021-08-30 16:05:31,273 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 51 Invalid, 2169 Unknown, 0 Unchecked, 12.47ms Time], IncrementalHoareTripleChecker [54 Valid, 1310 Invalid, 0 Unknown, 805 Unchecked, 3137.82ms Time] [2021-08-30 16:05:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-08-30 16:05:31,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 309. [2021-08-30 16:05:31,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 201 states have (on average 1.626865671641791) internal successors, (327), 274 states have internal predecessors, (327), 34 states have call successors, (34), 20 states have call predecessors, (34), 16 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 16:05:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 380 transitions. [2021-08-30 16:05:31,280 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 380 transitions. Word has length 38 [2021-08-30 16:05:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:05:31,280 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 380 transitions. [2021-08-30 16:05:31,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 9 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2021-08-30 16:05:31,281 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 380 transitions. [2021-08-30 16:05:31,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-30 16:05:31,281 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:05:31,281 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:05:31,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-08-30 16:05:31,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:05:31,493 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting inspectErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:05:31,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:05:31,494 INFO L82 PathProgramCache]: Analyzing trace with hash 695915251, now seen corresponding path program 1 times [2021-08-30 16:05:31,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:05:31,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884366159] [2021-08-30 16:05:31,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:31,495 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:05:31,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:05:31,496 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:05:31,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-30 16:05:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:31,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 16:05:31,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:31,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:05:32,083 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-08-30 16:05:32,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-08-30 16:05:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:32,100 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:05:32,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884366159] [2021-08-30 16:05:32,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884366159] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:05:32,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:05:32,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-08-30 16:05:32,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187598544] [2021-08-30 16:05:32,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 16:05:32,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:05:32,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 16:05:32,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-30 16:05:32,101 INFO L87 Difference]: Start difference. First operand 309 states and 380 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 16:05:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:05:33,468 INFO L93 Difference]: Finished difference Result 303 states and 369 transitions. [2021-08-30 16:05:33,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 16:05:33,469 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2021-08-30 16:05:33,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:05:33,470 INFO L225 Difference]: With dead ends: 303 [2021-08-30 16:05:33,470 INFO L226 Difference]: Without dead ends: 303 [2021-08-30 16:05:33,470 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 144.77ms TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-08-30 16:05:33,471 INFO L928 BasicCegarLoop]: 40 mSDtfsCounter, 388 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1124.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.30ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 1281.74ms IncrementalHoareTripleChecker+Time [2021-08-30 16:05:33,471 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 82 Invalid, 929 Unknown, 0 Unchecked, 6.30ms Time], IncrementalHoareTripleChecker [28 Valid, 896 Invalid, 0 Unknown, 5 Unchecked, 1281.74ms Time] [2021-08-30 16:05:33,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-08-30 16:05:33,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2021-08-30 16:05:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 197 states have (on average 1.5685279187817258) internal successors, (309), 264 states have internal predecessors, (309), 34 states have call successors, (34), 20 states have call predecessors, (34), 16 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 16:05:33,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 362 transitions. [2021-08-30 16:05:33,478 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 362 transitions. Word has length 38 [2021-08-30 16:05:33,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:05:33,479 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 362 transitions. [2021-08-30 16:05:33,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 16:05:33,479 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 362 transitions. [2021-08-30 16:05:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-30 16:05:33,480 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:05:33,480 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:05:33,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-08-30 16:05:33,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:05:33,690 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting inspectErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:05:33,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:05:33,690 INFO L82 PathProgramCache]: Analyzing trace with hash 695915252, now seen corresponding path program 1 times [2021-08-30 16:05:33,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:05:33,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147681590] [2021-08-30 16:05:33,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:33,691 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:05:33,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:05:33,696 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:05:33,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-30 16:05:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:33,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 16:05:33,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:34,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:05:34,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 6 [2021-08-30 16:05:34,944 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 16:05:34,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-08-30 16:05:35,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:35,102 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:05:35,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147681590] [2021-08-30 16:05:35,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147681590] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 16:05:35,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:05:35,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-08-30 16:05:35,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264515631] [2021-08-30 16:05:35,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-30 16:05:35,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 16:05:35,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-30 16:05:35,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-08-30 16:05:35,104 INFO L87 Difference]: Start difference. First operand 299 states and 362 transitions. Second operand has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-08-30 16:05:38,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:05:38,584 INFO L93 Difference]: Finished difference Result 297 states and 358 transitions. [2021-08-30 16:05:38,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 16:05:38,585 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 38 [2021-08-30 16:05:38,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:05:38,586 INFO L225 Difference]: With dead ends: 297 [2021-08-30 16:05:38,586 INFO L226 Difference]: Without dead ends: 297 [2021-08-30 16:05:38,586 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 705.00ms TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-08-30 16:05:38,586 INFO L928 BasicCegarLoop]: 40 mSDtfsCounter, 676 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2789.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.93ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3164.35ms IncrementalHoareTripleChecker+Time [2021-08-30 16:05:38,587 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [679 Valid, 50 Invalid, 1517 Unknown, 0 Unchecked, 10.93ms Time], IncrementalHoareTripleChecker [73 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 3164.35ms Time] [2021-08-30 16:05:38,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-08-30 16:05:38,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2021-08-30 16:05:38,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 197 states have (on average 1.5482233502538072) internal successors, (305), 262 states have internal predecessors, (305), 34 states have call successors, (34), 20 states have call predecessors, (34), 16 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 16:05:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 358 transitions. [2021-08-30 16:05:38,593 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 358 transitions. Word has length 38 [2021-08-30 16:05:38,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:05:38,593 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 358 transitions. [2021-08-30 16:05:38,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-08-30 16:05:38,594 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 358 transitions. [2021-08-30 16:05:38,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-30 16:05:38,594 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:05:38,595 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:05:38,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-08-30 16:05:38,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 16:05:38,805 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 16:05:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:05:38,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1621786009, now seen corresponding path program 1 times [2021-08-30 16:05:38,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 16:05:38,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818600898] [2021-08-30 16:05:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:38,806 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 16:05:38,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 16:05:38,807 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 16:05:38,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-30 16:05:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:39,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-08-30 16:05:39,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:39,103 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-08-30 16:05:39,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-08-30 16:05:39,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 6 [2021-08-30 16:05:39,321 INFO L388 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 0 case distinctions, treesize of input 13 treesize of output 10 [2021-08-30 16:05:39,585 INFO L388 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 11 treesize of output 7 [2021-08-30 16:05:39,792 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-08-30 16:05:39,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 20 [2021-08-30 16:05:39,894 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-08-30 16:05:39,894 INFO L388 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 36 [2021-08-30 16:05:44,020 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 16:05:44,032 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-08-30 16:05:44,032 INFO L388 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 34 treesize of output 33 [2021-08-30 16:05:44,232 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-08-30 16:05:44,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 58 [2021-08-30 16:05:44,586 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-08-30 16:05:44,587 INFO L388 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 3 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 57 [2021-08-30 16:05:44,971 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-08-30 16:05:44,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 75 [2021-08-30 16:05:45,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:05:45,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:05:53,411 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_50 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_50))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_50 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))))))) is different from false [2021-08-30 16:05:55,462 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_50 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_50))) (= (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_50 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))))))))) (_ bv1 1)) (_ bv0 1)))) is different from false [2021-08-30 16:05:57,508 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_50 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_50))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_50 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))))))))))))) is different from false [2021-08-30 16:05:58,013 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 16:05:58,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818600898] [2021-08-30 16:05:58,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-08-30 16:05:58,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1765875727] [2021-08-30 16:05:58,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:05:58,014 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-30 16:05:58,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-30 16:05:58,020 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-30 16:05:58,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-08-30 16:05:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:05:58,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 39 conjunts are in the unsatisfiable core [2021-08-30 16:05:58,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:05:58,467 INFO L388 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 9 treesize of output 3 [2021-08-30 16:05:58,535 INFO L388 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 [2021-08-30 16:05:59,226 INFO L388 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 11 treesize of output 7 [2021-08-30 16:05:59,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 16:05:59,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-08-30 16:05:59,927 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-08-30 16:05:59,927 INFO L388 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 36 [2021-08-30 16:06:00,285 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-08-30 16:06:00,286 INFO L388 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 27 treesize of output 38 [2021-08-30 16:06:00,698 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-08-30 16:06:00,698 INFO L388 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 3 new quantified variables, introduced 6 case distinctions, treesize of input 115 treesize of output 60 [2021-08-30 16:06:01,533 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-08-30 16:06:01,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 54 [2021-08-30 16:06:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:06:02,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:06:11,888 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 16:06:11,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3735 treesize of output 3693 [2021-08-30 16:06:35,311 INFO L388 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 760805 treesize of output 759781 [2021-08-30 16:06:36,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-08-30 16:06:36,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461204796] [2021-08-30 16:06:36,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:06:36,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 16:06:36,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 16:06:36,586 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 16:06:36,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-08-30 16:06:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:06:36,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-08-30 16:06:36,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 16:06:36,826 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-08-30 16:06:36,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-08-30 16:06:36,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2021-08-30 16:06:36,985 INFO L388 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 0 case distinctions, treesize of input 13 treesize of output 10 [2021-08-30 16:06:37,098 INFO L388 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 11 treesize of output 7 [2021-08-30 16:06:37,168 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-08-30 16:06:37,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 20 [2021-08-30 16:06:37,210 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-08-30 16:06:37,210 INFO L388 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 35 [2021-08-30 16:06:39,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 16:06:39,313 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-08-30 16:06:39,313 INFO L388 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 35 treesize of output 34 [2021-08-30 16:06:39,454 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-08-30 16:06:39,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 58 [2021-08-30 16:06:39,695 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-08-30 16:06:39,695 INFO L388 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 3 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 55 [2021-08-30 16:06:39,927 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-08-30 16:06:39,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 75 [2021-08-30 16:06:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:06:40,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 16:06:53,626 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_61 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_61 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_61 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_61) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_61))))) is different from false [2021-08-30 16:06:55,661 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_61 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_61 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_61 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_61) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_61))))) is different from false [2021-08-30 16:06:56,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-08-30 16:06:56,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:06:56,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-30 16:06:56,158 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-30 16:06:56,158 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-08-30 16:06:56,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION (70 of 71 remaining) [2021-08-30 16:06:56,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION (69 of 71 remaining) [2021-08-30 16:06:56,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION (68 of 71 remaining) [2021-08-30 16:06:56,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION (67 of 71 remaining) [2021-08-30 16:06:56,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION (66 of 71 remaining) [2021-08-30 16:06:56,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION (65 of 71 remaining) [2021-08-30 16:06:56,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION (64 of 71 remaining) [2021-08-30 16:06:56,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr2REQUIRES_VIOLATION (63 of 71 remaining) [2021-08-30 16:06:56,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr3REQUIRES_VIOLATION (62 of 71 remaining) [2021-08-30 16:06:56,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr4REQUIRES_VIOLATION (61 of 71 remaining) [2021-08-30 16:06:56,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr5REQUIRES_VIOLATION (60 of 71 remaining) [2021-08-30 16:06:56,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr0REQUIRES_VIOLATION (59 of 71 remaining) [2021-08-30 16:06:56,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr1REQUIRES_VIOLATION (58 of 71 remaining) [2021-08-30 16:06:56,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr2REQUIRES_VIOLATION (57 of 71 remaining) [2021-08-30 16:06:56,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr3REQUIRES_VIOLATION (56 of 71 remaining) [2021-08-30 16:06:56,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION (55 of 71 remaining) [2021-08-30 16:06:56,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION (54 of 71 remaining) [2021-08-30 16:06:56,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION (53 of 71 remaining) [2021-08-30 16:06:56,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION (52 of 71 remaining) [2021-08-30 16:06:56,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION (51 of 71 remaining) [2021-08-30 16:06:56,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION (50 of 71 remaining) [2021-08-30 16:06:56,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION (49 of 71 remaining) [2021-08-30 16:06:56,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION (48 of 71 remaining) [2021-08-30 16:06:56,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION (47 of 71 remaining) [2021-08-30 16:06:56,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION (46 of 71 remaining) [2021-08-30 16:06:56,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr10REQUIRES_VIOLATION (45 of 71 remaining) [2021-08-30 16:06:56,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr11REQUIRES_VIOLATION (44 of 71 remaining) [2021-08-30 16:06:56,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr12REQUIRES_VIOLATION (43 of 71 remaining) [2021-08-30 16:06:56,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr13REQUIRES_VIOLATION (42 of 71 remaining) [2021-08-30 16:06:56,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr14REQUIRES_VIOLATION (41 of 71 remaining) [2021-08-30 16:06:56,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr15REQUIRES_VIOLATION (40 of 71 remaining) [2021-08-30 16:06:56,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr16REQUIRES_VIOLATION (39 of 71 remaining) [2021-08-30 16:06:56,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr17REQUIRES_VIOLATION (38 of 71 remaining) [2021-08-30 16:06:56,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr18REQUIRES_VIOLATION (37 of 71 remaining) [2021-08-30 16:06:56,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr19REQUIRES_VIOLATION (36 of 71 remaining) [2021-08-30 16:06:56,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr20REQUIRES_VIOLATION (35 of 71 remaining) [2021-08-30 16:06:56,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr21REQUIRES_VIOLATION (34 of 71 remaining) [2021-08-30 16:06:56,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr22REQUIRES_VIOLATION (33 of 71 remaining) [2021-08-30 16:06:56,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr23REQUIRES_VIOLATION (32 of 71 remaining) [2021-08-30 16:06:56,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr24REQUIRES_VIOLATION (31 of 71 remaining) [2021-08-30 16:06:56,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr25REQUIRES_VIOLATION (30 of 71 remaining) [2021-08-30 16:06:56,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr26REQUIRES_VIOLATION (29 of 71 remaining) [2021-08-30 16:06:56,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr27REQUIRES_VIOLATION (28 of 71 remaining) [2021-08-30 16:06:56,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr28REQUIRES_VIOLATION (27 of 71 remaining) [2021-08-30 16:06:56,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr29REQUIRES_VIOLATION (26 of 71 remaining) [2021-08-30 16:06:56,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION (25 of 71 remaining) [2021-08-30 16:06:56,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION (24 of 71 remaining) [2021-08-30 16:06:56,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK (23 of 71 remaining) [2021-08-30 16:06:56,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION (22 of 71 remaining) [2021-08-30 16:06:56,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION (21 of 71 remaining) [2021-08-30 16:06:56,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION (20 of 71 remaining) [2021-08-30 16:06:56,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION (19 of 71 remaining) [2021-08-30 16:06:56,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION (18 of 71 remaining) [2021-08-30 16:06:56,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION (17 of 71 remaining) [2021-08-30 16:06:56,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE (16 of 71 remaining) [2021-08-30 16:06:56,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE (15 of 71 remaining) [2021-08-30 16:06:56,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE (14 of 71 remaining) [2021-08-30 16:06:56,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION (13 of 71 remaining) [2021-08-30 16:06:56,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION (12 of 71 remaining) [2021-08-30 16:06:56,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION (11 of 71 remaining) [2021-08-30 16:06:56,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION (10 of 71 remaining) [2021-08-30 16:06:56,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION (9 of 71 remaining) [2021-08-30 16:06:56,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION (8 of 71 remaining) [2021-08-30 16:06:56,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION (7 of 71 remaining) [2021-08-30 16:06:56,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (6 of 71 remaining) [2021-08-30 16:06:56,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION (5 of 71 remaining) [2021-08-30 16:06:56,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION (4 of 71 remaining) [2021-08-30 16:06:56,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION (3 of 71 remaining) [2021-08-30 16:06:56,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION (2 of 71 remaining) [2021-08-30 16:06:56,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION (1 of 71 remaining) [2021-08-30 16:06:56,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION (0 of 71 remaining) [2021-08-30 16:06:56,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-08-30 16:06:56,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-30 16:06:56,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-08-30 16:06:56,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 16:06:56,784 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 16:06:56,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:06:56 BoogieIcfgContainer [2021-08-30 16:06:56,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 16:06:56,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 16:06:56,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 16:06:56,795 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 16:06:56,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:03:18" (3/4) ... [2021-08-30 16:06:56,797 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 16:06:56,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 16:06:56,798 INFO L158 Benchmark]: Toolchain (without parser) took 219459.39ms. Allocated memory was 54.5MB in the beginning and 239.1MB in the end (delta: 184.5MB). Free memory was 29.6MB in the beginning and 169.2MB in the end (delta: -139.7MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2021-08-30 16:06:56,798 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 16:06:56,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 560.63ms. Allocated memory is still 54.5MB. Free memory was 29.4MB in the beginning and 23.2MB in the end (delta: 6.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-08-30 16:06:56,798 INFO L158 Benchmark]: Boogie Preprocessor took 102.56ms. Allocated memory is still 54.5MB. Free memory was 23.2MB in the beginning and 29.4MB in the end (delta: -6.2MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2021-08-30 16:06:56,798 INFO L158 Benchmark]: RCFGBuilder took 789.52ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.2MB in the beginning and 36.4MB in the end (delta: -7.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-08-30 16:06:56,799 INFO L158 Benchmark]: TraceAbstraction took 217998.82ms. Allocated memory was 67.1MB in the beginning and 239.1MB in the end (delta: 172.0MB). Free memory was 35.9MB in the beginning and 169.2MB in the end (delta: -133.3MB). Peak memory consumption was 142.6MB. Max. memory is 16.1GB. [2021-08-30 16:06:56,799 INFO L158 Benchmark]: Witness Printer took 2.57ms. Allocated memory is still 239.1MB. Free memory is still 169.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 16:06:56,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 560.63ms. Allocated memory is still 54.5MB. Free memory was 29.4MB in the beginning and 23.2MB in the end (delta: 6.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.56ms. Allocated memory is still 54.5MB. Free memory was 23.2MB in the beginning and 29.4MB in the end (delta: -6.2MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * RCFGBuilder took 789.52ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.2MB in the beginning and 36.4MB in the end (delta: -7.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 217998.82ms. Allocated memory was 67.1MB in the beginning and 239.1MB in the end (delta: 172.0MB). Free memory was 35.9MB in the beginning and 169.2MB in the end (delta: -133.3MB). Peak memory consumption was 142.6MB. Max. memory is 16.1GB. * Witness Printer took 2.57ms. Allocated memory is still 239.1MB. Free memory is still 169.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L850] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L949] CALL gl_read() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new [L879] new->next = next [L880] new->prev = prev [L881] prev->next = new [L890] RET __list_add(new, head, head->next) [L903] RET list_add(&node->linkage, &gl_list) [L904] (&node->nested)->next = (&node->nested) [L904] (&node->nested)->next = (&node->nested) [L909] RET gl_insert(__VERIFIER_nondet_int()) [L911] COND TRUE __VERIFIER_nondet_int() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 947]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 255 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 217930.60ms, OverallIterations: 17, TraceHistogramMax: 2, EmptinessCheckTime: 41.40ms, AutomataDifference: 41933.12ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 17.25ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2730 SdHoareTripleChecker+Valid, 34976.50ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2712 mSDsluCounter, 3354 SdHoareTripleChecker+Invalid, 30596.76ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4465 IncrementalHoareTripleChecker+Unchecked, 12727 mSDsCounter, 271 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15728 IncrementalHoareTripleChecker+Invalid, 20464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 271 mSolverCounterUnsat, 737 mSDtfsCounter, 15728 mSolverCounterSat, 160.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 733 GetRequests, 527 SyntacticMatches, 42 SemanticMatches, 164 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 88106.35ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=8, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 170.27ms AutomataMinimizationTime, 16 MinimizatonAttempts, 98 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 180.47ms SsaConstructionTime, 734.32ms SatisfiabilityAnalysisTime, 91538.87ms InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 668 ConstructedInterpolants, 88 QuantifiedInterpolants, 6998 SizeOfPredicates, 142 NumberOfNonLiveVariables, 2454 ConjunctsInSsa, 194 ConjunctsInUnsatCore, 32 InterpolantComputations, 28 PerfectInterpolantSequences, 22/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-30 16:06:56,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...