./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec 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/ldv-memsafety/memleaks_test22_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 ................................................................................................................................... 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/ldv-memsafety/memleaks_test22_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:18:18,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:18:18,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:18:18,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:18:18,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:18:18,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:18:18,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:18:18,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:18:18,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:18:18,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:18:18,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:18:18,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:18:18,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:18:18,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:18:18,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:18:18,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:18:18,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:18:18,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:18:18,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:18:18,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:18:18,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:18:18,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:18:18,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:18:18,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:18:18,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:18:18,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:18:18,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:18:18,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:18:18,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:18:18,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:18:18,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:18:18,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:18:18,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:18:18,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:18:18,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:18:18,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:18:18,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:18:18,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:18:18,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:18:18,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:18:18,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:18:18,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:18:18,734 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:18:18,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:18:18,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:18:18,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:18:18,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:18:18,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:18:18,735 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:18:18,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:18:18,735 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:18:18,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:18:18,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:18:18,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:18:18,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:18:18,736 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:18:18,736 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:18:18,736 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:18:18,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:18:18,736 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:18:18,736 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:18:18,736 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:18:18,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:18:18,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:18:18,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:18:18,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:18,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:18:18,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:18:18,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:18:18,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:18:18,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:18:18,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 [2021-08-27 06:18:19,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:18:19,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:18:19,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:18:19,040 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:18:19,041 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:18:19,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2021-08-27 06:18:19,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/875dd6c04/2db40de3ce14420e8b78a52b38cab9fd/FLAG5beaa1918 [2021-08-27 06:18:19,472 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:18:19,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2021-08-27 06:18:19,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/875dd6c04/2db40de3ce14420e8b78a52b38cab9fd/FLAG5beaa1918 [2021-08-27 06:18:19,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/875dd6c04/2db40de3ce14420e8b78a52b38cab9fd [2021-08-27 06:18:19,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:18:19,832 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:18:19,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:19,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:18:19,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:18:19,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:19" (1/1) ... [2021-08-27 06:18:19,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa08f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:19, skipping insertion in model container [2021-08-27 06:18:19,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:19" (1/1) ... [2021-08-27 06:18:19,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:18:19,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:20,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:20,174 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) [2021-08-27 06:18:20,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4131aba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:20, skipping insertion in model container [2021-08-27 06:18:20,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:20,175 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:18:20,177 INFO L168 Benchmark]: Toolchain (without parser) took 343.76 ms. Allocated memory is still 58.7 MB. Free memory was 36.5 MB in the beginning and 39.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:20,177 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 58.7 MB. Free memory was 41.0 MB in the beginning and 41.0 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:20,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.72 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 39.4 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:20,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 58.7 MB. Free memory was 41.0 MB in the beginning and 41.0 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.72 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 39.4 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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-dev-20ed64e [2021-08-27 06:18:21,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:18:21,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:18:21,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:18:21,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:18:21,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:18:21,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:18:21,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:18:21,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:18:21,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:18:21,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:18:21,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:18:21,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:18:21,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:18:21,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:18:21,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:18:21,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:18:21,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:18:21,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:18:21,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:18:21,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:18:21,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:18:21,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:18:21,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:18:21,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:18:21,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:18:21,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:18:21,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:18:21,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:18:21,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:18:21,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:18:21,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:18:21,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:18:21,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:18:21,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:18:21,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:18:21,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:18:21,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:18:21,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:18:21,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:18:21,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:18:21,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:18:21,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:18:21,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:18:21,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:18:21,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:18:21,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:18:21,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:18:21,626 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:18:21,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:18:21,626 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:18:21,626 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:18:21,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:18:21,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:18:21,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:18:21,627 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:18:21,627 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:18:21,627 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:18:21,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:18:21,628 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:18:21,628 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:18:21,628 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:18:21,628 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:18:21,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:18:21,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:18:21,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:18:21,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:18:21,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:21,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:18:21,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:18:21,629 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:18:21,629 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:18:21,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:18:21,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:18:21,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 [2021-08-27 06:18:21,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:18:21,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:18:21,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:18:21,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:18:21,938 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:18:21,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2021-08-27 06:18:21,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4b0a5b0/7c372bec5383445ba0bc2e7f5a144b42/FLAG4b69e1c45 [2021-08-27 06:18:22,413 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:18:22,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2021-08-27 06:18:22,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4b0a5b0/7c372bec5383445ba0bc2e7f5a144b42/FLAG4b69e1c45 [2021-08-27 06:18:22,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4b0a5b0/7c372bec5383445ba0bc2e7f5a144b42 [2021-08-27 06:18:22,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:18:22,757 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:18:22,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:22,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:18:22,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:18:22,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:22" (1/1) ... [2021-08-27 06:18:22,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57609681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:22, skipping insertion in model container [2021-08-27 06:18:22,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:22" (1/1) ... [2021-08-27 06:18:22,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:18:22,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:23,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:23,121 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:18:23,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:23,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:23,187 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:18:23,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:23,248 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:18:23,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23 WrapperNode [2021-08-27 06:18:23,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:23,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:18:23,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:18:23,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:18:23,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23" (1/1) ... [2021-08-27 06:18:23,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23" (1/1) ... [2021-08-27 06:18:23,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23" (1/1) ... [2021-08-27 06:18:23,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23" (1/1) ... [2021-08-27 06:18:23,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23" (1/1) ... [2021-08-27 06:18:23,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23" (1/1) ... [2021-08-27 06:18:23,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23" (1/1) ... [2021-08-27 06:18:23,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:18:23,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:18:23,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:18:23,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:18:23,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23" (1/1) ... [2021-08-27 06:18:23,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:23,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:18:23,378 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) [2021-08-27 06:18:23,414 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 [2021-08-27 06:18:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:18:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:18:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:18:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:18:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:18:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:18:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:18:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:18:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:18:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:18:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:18:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:18:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:18:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:18:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:18:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:18:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:18:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:18:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:18:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:18:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:18:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:18:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:18:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:18:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:18:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:18:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:18:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:18:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:18:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:18:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:18:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:18:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:18:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:18:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:18:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:18:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:18:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:18:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:18:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:18:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:18:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:18:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:18:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:18:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:18:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:18:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:18:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:18:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:18:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:18:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:18:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:18:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:18:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:18:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:18:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:18:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:18:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:18:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:18:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:18:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:18:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:18:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:18:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:18:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:18:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:18:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:18:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:18:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:18:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:18:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:18:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:18:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:18:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:18:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:18:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:18:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:18:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:18:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:18:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:18:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:18:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:18:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:18:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:18:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:18:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:18:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:18:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:18:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:18:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:18:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:18:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:18:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:18:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:18:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:18:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:18:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:18:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:18:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:18:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:18:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:18:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:18:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:18:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:18:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:18:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:18:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:18:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:18:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:18:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:18:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:18:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:18:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:18:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:18:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:18:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:18:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:18:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:18:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:18:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:18:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:18:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:18:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:18:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:18:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:18:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:18:23,999 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:18:24,284 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:18:24,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:18:24,530 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:18:24,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:24 BoogieIcfgContainer [2021-08-27 06:18:24,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:18:24,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:18:24,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:18:24,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:18:24,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:18:22" (1/3) ... [2021-08-27 06:18:24,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e55e73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:18:24, skipping insertion in model container [2021-08-27 06:18:24,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:23" (2/3) ... [2021-08-27 06:18:24,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e55e73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:18:24, skipping insertion in model container [2021-08-27 06:18:24,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:24" (3/3) ... [2021-08-27 06:18:24,539 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-1.i [2021-08-27 06:18:24,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:18:24,543 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-08-27 06:18:24,589 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:18:24,592 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 [2021-08-27 06:18:24,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-08-27 06:18:24,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 132 states have internal predecessors, (141), 22 states have call successors, (22), 21 states have call predecessors, (22), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:18:24,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:18:24,618 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:24,618 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:24,618 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:24,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:24,625 INFO L82 PathProgramCache]: Analyzing trace with hash -580210168, now seen corresponding path program 1 times [2021-08-27 06:18:24,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:24,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658652304] [2021-08-27 06:18:24,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:24,634 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:24,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:24,636 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) [2021-08-27 06:18:24,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:18:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:24,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:18:24,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:24,912 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 [2021-08-27 06:18:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:24,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:25,086 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:25,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658652304] [2021-08-27 06:18:25,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658652304] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:25,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:25,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:18:25,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736134168] [2021-08-27 06:18:25,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:25,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:25,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:25,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:25,110 INFO L87 Difference]: Start difference. First operand has 174 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 132 states have internal predecessors, (141), 22 states have call successors, (22), 21 states have call predecessors, (22), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:25,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:25,290 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2021-08-27 06:18:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:25,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:18:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:25,300 INFO L225 Difference]: With dead ends: 156 [2021-08-27 06:18:25,300 INFO L226 Difference]: Without dead ends: 153 [2021-08-27 06:18:25,301 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:25,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-27 06:18:25,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2021-08-27 06:18:25,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 83 states have (on average 1.3975903614457832) internal successors, (116), 109 states have internal predecessors, (116), 21 states have call successors, (21), 20 states have call predecessors, (21), 20 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 06:18:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2021-08-27 06:18:25,350 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 17 [2021-08-27 06:18:25,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:25,351 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2021-08-27 06:18:25,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:25,351 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2021-08-27 06:18:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:18:25,352 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:25,352 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:25,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:25,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:25,559 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:25,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:25,559 INFO L82 PathProgramCache]: Analyzing trace with hash -580210167, now seen corresponding path program 1 times [2021-08-27 06:18:25,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:25,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594573962] [2021-08-27 06:18:25,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:25,560 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:25,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:25,561 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) [2021-08-27 06:18:25,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:18:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:25,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:18:25,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:25,813 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 [2021-08-27 06:18:25,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:25,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:26,172 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:26,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594573962] [2021-08-27 06:18:26,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594573962] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:26,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:26,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-27 06:18:26,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110005707] [2021-08-27 06:18:26,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:18:26,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:26,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:18:26,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:18:26,174 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:26,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:26,565 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2021-08-27 06:18:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:18:26,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-27 06:18:26,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:26,572 INFO L225 Difference]: With dead ends: 152 [2021-08-27 06:18:26,572 INFO L226 Difference]: Without dead ends: 152 [2021-08-27 06:18:26,572 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 130.8ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:18:26,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-08-27 06:18:26,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2021-08-27 06:18:26,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 109 states have internal predecessors, (115), 21 states have call successors, (21), 20 states have call predecessors, (21), 20 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 06:18:26,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2021-08-27 06:18:26,579 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 17 [2021-08-27 06:18:26,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:26,579 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2021-08-27 06:18:26,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2021-08-27 06:18:26,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:18:26,579 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:26,579 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:26,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:26,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:26,789 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:26,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:26,789 INFO L82 PathProgramCache]: Analyzing trace with hash -551581017, now seen corresponding path program 1 times [2021-08-27 06:18:26,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:26,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044160674] [2021-08-27 06:18:26,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:26,789 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:26,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:26,790 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) [2021-08-27 06:18:26,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:18:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:26,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:18:26,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:27,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:27,121 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:27,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044160674] [2021-08-27 06:18:27,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044160674] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:27,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:27,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:18:27,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968226152] [2021-08-27 06:18:27,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:27,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:27,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:27,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:27,123 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:27,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:27,139 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2021-08-27 06:18:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:27,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:18:27,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:27,141 INFO L225 Difference]: With dead ends: 146 [2021-08-27 06:18:27,141 INFO L226 Difference]: Without dead ends: 146 [2021-08-27 06:18:27,141 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:27,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-08-27 06:18:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2021-08-27 06:18:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 81 states have (on average 1.382716049382716) internal successors, (112), 106 states have internal predecessors, (112), 20 states have call successors, (20), 20 states have call predecessors, (20), 20 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2021-08-27 06:18:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2021-08-27 06:18:27,149 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 17 [2021-08-27 06:18:27,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:27,149 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2021-08-27 06:18:27,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2021-08-27 06:18:27,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 06:18:27,150 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:27,150 INFO L512 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] [2021-08-27 06:18:27,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:27,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:27,364 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:27,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:27,365 INFO L82 PathProgramCache]: Analyzing trace with hash 180429038, now seen corresponding path program 1 times [2021-08-27 06:18:27,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:27,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51709654] [2021-08-27 06:18:27,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:27,365 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:27,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:27,368 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) [2021-08-27 06:18:27,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:18:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:27,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:18:27,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:27,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:27,809 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:27,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51709654] [2021-08-27 06:18:27,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51709654] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:27,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:27,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:18:27,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152032619] [2021-08-27 06:18:27,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:27,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:27,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:27,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:27,813 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:27,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:27,839 INFO L93 Difference]: Finished difference Result 146 states and 153 transitions. [2021-08-27 06:18:27,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:27,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2021-08-27 06:18:27,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:27,842 INFO L225 Difference]: With dead ends: 146 [2021-08-27 06:18:27,842 INFO L226 Difference]: Without dead ends: 146 [2021-08-27 06:18:27,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:27,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-08-27 06:18:27,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2021-08-27 06:18:27,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 106 states have internal predecessors, (111), 20 states have call successors, (20), 20 states have call predecessors, (20), 20 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2021-08-27 06:18:27,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 151 transitions. [2021-08-27 06:18:27,867 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 151 transitions. Word has length 27 [2021-08-27 06:18:27,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:27,867 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 151 transitions. [2021-08-27 06:18:27,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:27,867 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2021-08-27 06:18:27,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 06:18:27,868 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:27,868 INFO L512 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] [2021-08-27 06:18:27,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:28,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:28,075 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:28,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:28,076 INFO L82 PathProgramCache]: Analyzing trace with hash -330105139, now seen corresponding path program 1 times [2021-08-27 06:18:28,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:28,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536525434] [2021-08-27 06:18:28,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:28,076 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:28,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:28,077 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) [2021-08-27 06:18:28,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:18:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:28,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:28,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:28,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:28,500 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:28,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536525434] [2021-08-27 06:18:28,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536525434] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:28,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:28,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-27 06:18:28,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303940596] [2021-08-27 06:18:28,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:18:28,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:28,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:18:28,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:28,501 INFO L87 Difference]: Start difference. First operand 144 states and 151 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:28,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:28,541 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2021-08-27 06:18:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:18:28,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2021-08-27 06:18:28,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:28,544 INFO L225 Difference]: With dead ends: 160 [2021-08-27 06:18:28,544 INFO L226 Difference]: Without dead ends: 160 [2021-08-27 06:18:28,544 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.8ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:18:28,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-08-27 06:18:28,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2021-08-27 06:18:28,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 113 states have internal predecessors, (117), 21 states have call successors, (21), 21 states have call predecessors, (21), 22 states have return successors, (22), 21 states have call predecessors, (22), 20 states have call successors, (22) [2021-08-27 06:18:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 160 transitions. [2021-08-27 06:18:28,552 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 160 transitions. Word has length 27 [2021-08-27 06:18:28,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:28,552 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 160 transitions. [2021-08-27 06:18:28,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:28,553 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 160 transitions. [2021-08-27 06:18:28,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-27 06:18:28,554 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:28,554 INFO L512 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] [2021-08-27 06:18:28,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:28,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:28,761 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:28,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:28,761 INFO L82 PathProgramCache]: Analyzing trace with hash 317366699, now seen corresponding path program 1 times [2021-08-27 06:18:28,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:28,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121375331] [2021-08-27 06:18:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:28,762 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:28,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:28,762 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) [2021-08-27 06:18:28,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:18:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:28,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:18:28,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:29,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:29,131 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:29,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121375331] [2021-08-27 06:18:29,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121375331] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:29,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:29,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:18:29,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728809889] [2021-08-27 06:18:29,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:18:29,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:29,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:18:29,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:18:29,136 INFO L87 Difference]: Start difference. First operand 153 states and 160 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:29,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:29,161 INFO L93 Difference]: Finished difference Result 159 states and 166 transitions. [2021-08-27 06:18:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:18:29,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-08-27 06:18:29,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:29,163 INFO L225 Difference]: With dead ends: 159 [2021-08-27 06:18:29,163 INFO L226 Difference]: Without dead ends: 155 [2021-08-27 06:18:29,163 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-08-27 06:18:29,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-08-27 06:18:29,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 115 states have internal predecessors, (119), 21 states have call successors, (21), 21 states have call predecessors, (21), 22 states have return successors, (22), 21 states have call predecessors, (22), 20 states have call successors, (22) [2021-08-27 06:18:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 162 transitions. [2021-08-27 06:18:29,169 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 162 transitions. Word has length 32 [2021-08-27 06:18:29,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:29,170 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 162 transitions. [2021-08-27 06:18:29,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 162 transitions. [2021-08-27 06:18:29,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-27 06:18:29,176 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:29,176 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:29,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:29,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:29,383 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:29,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:29,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1135828661, now seen corresponding path program 1 times [2021-08-27 06:18:29,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:29,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648372337] [2021-08-27 06:18:29,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:29,383 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:29,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:29,384 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) [2021-08-27 06:18:29,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:18:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:29,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 06:18:29,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:29,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:29,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:29,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:29,871 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:29,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648372337] [2021-08-27 06:18:29,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648372337] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:18:29,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:18:29,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-27 06:18:29,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205255967] [2021-08-27 06:18:29,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:18:29,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:29,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:18:29,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:18:29,873 INFO L87 Difference]: Start difference. First operand 155 states and 162 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:29,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:29,997 INFO L93 Difference]: Finished difference Result 163 states and 172 transitions. [2021-08-27 06:18:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:18:29,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-08-27 06:18:29,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:29,998 INFO L225 Difference]: With dead ends: 163 [2021-08-27 06:18:29,998 INFO L226 Difference]: Without dead ends: 159 [2021-08-27 06:18:29,999 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 126.2ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:18:29,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-08-27 06:18:30,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-08-27 06:18:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 93 states have (on average 1.3225806451612903) internal successors, (123), 119 states have internal predecessors, (123), 21 states have call successors, (21), 21 states have call predecessors, (21), 22 states have return successors, (22), 21 states have call predecessors, (22), 20 states have call successors, (22) [2021-08-27 06:18:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 166 transitions. [2021-08-27 06:18:30,002 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 166 transitions. Word has length 34 [2021-08-27 06:18:30,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:30,002 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 166 transitions. [2021-08-27 06:18:30,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:30,002 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 166 transitions. [2021-08-27 06:18:30,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-27 06:18:30,003 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:30,003 INFO L512 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] [2021-08-27 06:18:30,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:30,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:30,210 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:30,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:30,210 INFO L82 PathProgramCache]: Analyzing trace with hash 591246760, now seen corresponding path program 1 times [2021-08-27 06:18:30,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:30,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555694079] [2021-08-27 06:18:30,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:30,211 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:30,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:30,212 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) [2021-08-27 06:18:30,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:18:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:30,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:30,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:30,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:30,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:30,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:30,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555694079] [2021-08-27 06:18:30,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555694079] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:30,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:30,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-27 06:18:30,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688161103] [2021-08-27 06:18:30,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:18:30,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:30,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:18:30,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:30,732 INFO L87 Difference]: Start difference. First operand 159 states and 166 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:18:30,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:30,763 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2021-08-27 06:18:30,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:18:30,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2021-08-27 06:18:30,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:30,764 INFO L225 Difference]: With dead ends: 169 [2021-08-27 06:18:30,764 INFO L226 Difference]: Without dead ends: 169 [2021-08-27 06:18:30,765 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.2ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:18:30,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-08-27 06:18:30,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2021-08-27 06:18:30,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 97 states have (on average 1.309278350515464) internal successors, (127), 123 states have internal predecessors, (127), 22 states have call successors, (22), 22 states have call predecessors, (22), 23 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-08-27 06:18:30,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 172 transitions. [2021-08-27 06:18:30,768 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 172 transitions. Word has length 36 [2021-08-27 06:18:30,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:30,768 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 172 transitions. [2021-08-27 06:18:30,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:18:30,768 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 172 transitions. [2021-08-27 06:18:30,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-27 06:18:30,769 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:30,769 INFO L512 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] [2021-08-27 06:18:30,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:30,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:30,978 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:30,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:30,978 INFO L82 PathProgramCache]: Analyzing trace with hash -212953728, now seen corresponding path program 1 times [2021-08-27 06:18:30,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:30,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218970936] [2021-08-27 06:18:30,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:30,979 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:30,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:30,979 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) [2021-08-27 06:18:30,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:18:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:31,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 06:18:31,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:31,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:31,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:31,464 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:31,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218970936] [2021-08-27 06:18:31,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218970936] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:31,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:31,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:18:31,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822118496] [2021-08-27 06:18:31,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:18:31,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:31,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:18:31,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:18:31,466 INFO L87 Difference]: Start difference. First operand 165 states and 172 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:18:31,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:31,588 INFO L93 Difference]: Finished difference Result 176 states and 182 transitions. [2021-08-27 06:18:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:18:31,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2021-08-27 06:18:31,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:31,589 INFO L225 Difference]: With dead ends: 176 [2021-08-27 06:18:31,589 INFO L226 Difference]: Without dead ends: 154 [2021-08-27 06:18:31,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:18:31,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-27 06:18:31,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 146. [2021-08-27 06:18:31,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 109 states have internal predecessors, (113), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:31,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 152 transitions. [2021-08-27 06:18:31,592 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 152 transitions. Word has length 34 [2021-08-27 06:18:31,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:31,592 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 152 transitions. [2021-08-27 06:18:31,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:18:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 152 transitions. [2021-08-27 06:18:31,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:18:31,592 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:31,592 INFO L512 BasicCegarLoop]: trace histogram [6, 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] [2021-08-27 06:18:31,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:31,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:31,799 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:31,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:31,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1203345269, now seen corresponding path program 2 times [2021-08-27 06:18:31,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:31,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361311990] [2021-08-27 06:18:31,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:18:31,800 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:31,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:31,801 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) [2021-08-27 06:18:31,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-27 06:18:32,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:18:32,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:18:32,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:32,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:32,090 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 [2021-08-27 06:18:32,300 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-27 06:18:32,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-27 06:18:32,487 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:32,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361311990] [2021-08-27 06:18:32,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361311990] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:32,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:32,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:18:32,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630008646] [2021-08-27 06:18:32,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:18:32,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:32,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:18:32,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:18:32,488 INFO L87 Difference]: Start difference. First operand 146 states and 152 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:18:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:33,053 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2021-08-27 06:18:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:18:33,053 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-08-27 06:18:33,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:33,054 INFO L225 Difference]: With dead ends: 157 [2021-08-27 06:18:33,054 INFO L226 Difference]: Without dead ends: 157 [2021-08-27 06:18:33,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 179.6ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:18:33,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-08-27 06:18:33,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2021-08-27 06:18:33,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 108 states have internal predecessors, (112), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:33,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2021-08-27 06:18:33,057 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 38 [2021-08-27 06:18:33,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:33,057 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2021-08-27 06:18:33,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:18:33,057 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2021-08-27 06:18:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:18:33,057 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:33,057 INFO L512 BasicCegarLoop]: trace histogram [6, 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] [2021-08-27 06:18:33,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:33,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:33,264 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:33,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:33,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1203345268, now seen corresponding path program 1 times [2021-08-27 06:18:33,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:33,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634379731] [2021-08-27 06:18:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:33,265 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:33,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:33,265 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) [2021-08-27 06:18:33,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-27 06:18:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:33,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:18:33,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:33,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:34,016 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:34,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634379731] [2021-08-27 06:18:34,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634379731] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:18:34,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:18:34,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-08-27 06:18:34,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547670857] [2021-08-27 06:18:34,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 06:18:34,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:34,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 06:18:34,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-08-27 06:18:34,018 INFO L87 Difference]: Start difference. First operand 145 states and 151 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:34,516 INFO L93 Difference]: Finished difference Result 157 states and 169 transitions. [2021-08-27 06:18:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:18:34,525 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-08-27 06:18:34,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:34,526 INFO L225 Difference]: With dead ends: 157 [2021-08-27 06:18:34,526 INFO L226 Difference]: Without dead ends: 153 [2021-08-27 06:18:34,526 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 550.3ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-08-27 06:18:34,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-27 06:18:34,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-08-27 06:18:34,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 116 states have internal predecessors, (120), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 159 transitions. [2021-08-27 06:18:34,529 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 159 transitions. Word has length 38 [2021-08-27 06:18:34,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:34,529 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 159 transitions. [2021-08-27 06:18:34,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:34,529 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 159 transitions. [2021-08-27 06:18:34,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 06:18:34,529 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:34,530 INFO L512 BasicCegarLoop]: trace histogram [14, 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] [2021-08-27 06:18:34,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:34,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:34,737 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:34,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:34,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1038685964, now seen corresponding path program 2 times [2021-08-27 06:18:34,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:34,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822362254] [2021-08-27 06:18:34,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:18:34,739 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:34,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:34,739 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) [2021-08-27 06:18:34,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-27 06:18:35,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:18:35,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:18:35,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:18:35,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:35,090 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 [2021-08-27 06:18:35,450 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-27 06:18:35,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-27 06:18:36,223 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:36,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822362254] [2021-08-27 06:18:36,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822362254] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:36,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:36,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:18:36,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709607644] [2021-08-27 06:18:36,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:18:36,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:36,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:18:36,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:18:36,224 INFO L87 Difference]: Start difference. First operand 153 states and 159 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:18:37,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:37,946 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2021-08-27 06:18:37,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:18:37,946 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-08-27 06:18:37,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:37,947 INFO L225 Difference]: With dead ends: 152 [2021-08-27 06:18:37,947 INFO L226 Difference]: Without dead ends: 152 [2021-08-27 06:18:37,948 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 723.8ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:18:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-08-27 06:18:37,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-08-27 06:18:37,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 115 states have internal predecessors, (119), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:37,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 158 transitions. [2021-08-27 06:18:37,954 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 158 transitions. Word has length 46 [2021-08-27 06:18:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:37,954 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 158 transitions. [2021-08-27 06:18:37,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:18:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2021-08-27 06:18:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 06:18:37,955 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:37,955 INFO L512 BasicCegarLoop]: trace histogram [14, 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] [2021-08-27 06:18:37,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:38,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:38,161 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:38,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:38,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1614588820, now seen corresponding path program 1 times [2021-08-27 06:18:38,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:38,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435143275] [2021-08-27 06:18:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:38,170 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:38,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:38,185 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) [2021-08-27 06:18:38,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-27 06:18:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:38,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 06:18:38,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:38,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:39,649 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:39,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435143275] [2021-08-27 06:18:39,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435143275] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:18:39,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:18:39,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-08-27 06:18:39,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575260159] [2021-08-27 06:18:39,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-08-27 06:18:39,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:39,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-08-27 06:18:39,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 06:18:39,651 INFO L87 Difference]: Start difference. First operand 152 states and 158 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:18:40,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:40,076 INFO L93 Difference]: Finished difference Result 158 states and 164 transitions. [2021-08-27 06:18:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 06:18:40,076 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-08-27 06:18:40,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:40,077 INFO L225 Difference]: With dead ends: 158 [2021-08-27 06:18:40,077 INFO L226 Difference]: Without dead ends: 154 [2021-08-27 06:18:40,078 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 631.4ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-08-27 06:18:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-27 06:18:40,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-08-27 06:18:40,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 94 states have (on average 1.2872340425531914) internal successors, (121), 117 states have internal predecessors, (121), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 160 transitions. [2021-08-27 06:18:40,080 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 160 transitions. Word has length 51 [2021-08-27 06:18:40,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:40,080 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 160 transitions. [2021-08-27 06:18:40,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:18:40,081 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 160 transitions. [2021-08-27 06:18:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:18:40,081 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:40,081 INFO L512 BasicCegarLoop]: trace histogram [16, 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] [2021-08-27 06:18:40,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:40,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:40,295 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:40,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:40,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1256867828, now seen corresponding path program 2 times [2021-08-27 06:18:40,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:40,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708546508] [2021-08-27 06:18:40,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:18:40,296 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:40,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:40,296 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) [2021-08-27 06:18:40,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-27 06:18:40,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:18:40,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:18:40,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:40,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:40,715 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 [2021-08-27 06:18:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:40,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:41,136 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:41,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708546508] [2021-08-27 06:18:41,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708546508] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:41,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:41,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:18:41,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080165331] [2021-08-27 06:18:41,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:18:41,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:41,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:18:41,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:18:41,138 INFO L87 Difference]: Start difference. First operand 154 states and 160 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:18:41,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:41,668 INFO L93 Difference]: Finished difference Result 164 states and 169 transitions. [2021-08-27 06:18:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:18:41,669 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-08-27 06:18:41,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:41,669 INFO L225 Difference]: With dead ends: 164 [2021-08-27 06:18:41,669 INFO L226 Difference]: Without dead ends: 164 [2021-08-27 06:18:41,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 158.5ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:18:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-08-27 06:18:41,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2021-08-27 06:18:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 115 states have internal predecessors, (119), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 158 transitions. [2021-08-27 06:18:41,672 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 158 transitions. Word has length 53 [2021-08-27 06:18:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:41,673 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 158 transitions. [2021-08-27 06:18:41,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:18:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2021-08-27 06:18:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:18:41,673 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:41,673 INFO L512 BasicCegarLoop]: trace histogram [16, 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] [2021-08-27 06:18:41,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-08-27 06:18:41,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:41,881 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:41,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:41,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1256867829, now seen corresponding path program 1 times [2021-08-27 06:18:41,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:41,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64404752] [2021-08-27 06:18:41,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:41,882 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:41,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:41,882 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) [2021-08-27 06:18:41,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-27 06:18:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:42,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:18:42,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:42,348 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 [2021-08-27 06:18:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:42,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:43,470 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:43,471 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:43,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64404752] [2021-08-27 06:18:43,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64404752] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:43,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:43,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:18:43,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998458217] [2021-08-27 06:18:43,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:18:43,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:43,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:18:43,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:18:43,472 INFO L87 Difference]: Start difference. First operand 152 states and 158 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:18:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:45,076 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2021-08-27 06:18:45,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:18:45,078 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-08-27 06:18:45,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:45,078 INFO L225 Difference]: With dead ends: 150 [2021-08-27 06:18:45,078 INFO L226 Difference]: Without dead ends: 150 [2021-08-27 06:18:45,079 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 699.3ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:18:45,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-08-27 06:18:45,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-08-27 06:18:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 113 states have internal predecessors, (117), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:45,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 156 transitions. [2021-08-27 06:18:45,082 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 156 transitions. Word has length 53 [2021-08-27 06:18:45,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:45,082 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 156 transitions. [2021-08-27 06:18:45,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:18:45,082 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 156 transitions. [2021-08-27 06:18:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-27 06:18:45,083 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:45,083 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1] [2021-08-27 06:18:45,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-08-27 06:18:45,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:45,291 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:45,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:45,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1782492395, now seen corresponding path program 1 times [2021-08-27 06:18:45,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:45,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448348514] [2021-08-27 06:18:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:45,292 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:45,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:45,292 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) [2021-08-27 06:18:45,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-27 06:18:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:45,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:18:45,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:45,880 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:45,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:46,077 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:46,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448348514] [2021-08-27 06:18:46,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448348514] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:46,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:46,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-08-27 06:18:46,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051479932] [2021-08-27 06:18:46,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:18:46,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:46,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:18:46,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:18:46,079 INFO L87 Difference]: Start difference. First operand 150 states and 156 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:18:46,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:46,104 INFO L93 Difference]: Finished difference Result 152 states and 157 transitions. [2021-08-27 06:18:46,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:18:46,104 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2021-08-27 06:18:46,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:46,105 INFO L225 Difference]: With dead ends: 152 [2021-08-27 06:18:46,105 INFO L226 Difference]: Without dead ends: 150 [2021-08-27 06:18:46,105 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.9ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:18:46,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-08-27 06:18:46,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-08-27 06:18:46,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 112 states have internal predecessors, (116), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:46,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 155 transitions. [2021-08-27 06:18:46,108 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 155 transitions. Word has length 56 [2021-08-27 06:18:46,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:46,108 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 155 transitions. [2021-08-27 06:18:46,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:18:46,108 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 155 transitions. [2021-08-27 06:18:46,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-08-27 06:18:46,109 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:46,109 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:46,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:46,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:46,317 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:46,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1924935738, now seen corresponding path program 1 times [2021-08-27 06:18:46,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:46,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901095062] [2021-08-27 06:18:46,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:46,317 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:46,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:46,318 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) [2021-08-27 06:18:46,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-27 06:18:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:46,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:18:46,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:46,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:47,255 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:47,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901095062] [2021-08-27 06:18:47,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901095062] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:47,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:47,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-08-27 06:18:47,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787872471] [2021-08-27 06:18:47,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:18:47,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:47,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:18:47,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:18:47,256 INFO L87 Difference]: Start difference. First operand 150 states and 155 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:18:47,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:47,310 INFO L93 Difference]: Finished difference Result 154 states and 158 transitions. [2021-08-27 06:18:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:18:47,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 61 [2021-08-27 06:18:47,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:47,311 INFO L225 Difference]: With dead ends: 154 [2021-08-27 06:18:47,311 INFO L226 Difference]: Without dead ends: 150 [2021-08-27 06:18:47,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 74.9ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:18:47,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-08-27 06:18:47,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-08-27 06:18:47,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 111 states have internal predecessors, (115), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2021-08-27 06:18:47,314 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 61 [2021-08-27 06:18:47,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:47,314 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2021-08-27 06:18:47,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:18:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2021-08-27 06:18:47,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-27 06:18:47,315 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:47,315 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:47,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:47,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:47,517 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:47,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:47,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1553235633, now seen corresponding path program 1 times [2021-08-27 06:18:47,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:47,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505273629] [2021-08-27 06:18:47,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:47,518 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:47,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:47,518 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:47,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-27 06:18:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:48,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:18:48,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:48,097 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 [2021-08-27 06:18:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:48,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:48,712 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:48,713 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:48,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505273629] [2021-08-27 06:18:48,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505273629] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:48,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:48,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 14 [2021-08-27 06:18:48,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398230471] [2021-08-27 06:18:48,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 06:18:48,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:48,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 06:18:48,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:18:48,714 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand has 15 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:18:49,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:49,338 INFO L93 Difference]: Finished difference Result 160 states and 163 transitions. [2021-08-27 06:18:49,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 06:18:49,338 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 72 [2021-08-27 06:18:49,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:49,339 INFO L225 Difference]: With dead ends: 160 [2021-08-27 06:18:49,339 INFO L226 Difference]: Without dead ends: 160 [2021-08-27 06:18:49,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 119 SyntacticMatches, 11 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 210.3ms TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-08-27 06:18:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-08-27 06:18:49,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 148. [2021-08-27 06:18:49,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 94 states have (on average 1.202127659574468) internal successors, (113), 109 states have internal predecessors, (113), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 152 transitions. [2021-08-27 06:18:49,342 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 152 transitions. Word has length 72 [2021-08-27 06:18:49,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:49,342 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 152 transitions. [2021-08-27 06:18:49,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:18:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 152 transitions. [2021-08-27 06:18:49,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-27 06:18:49,343 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:49,343 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:49,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-08-27 06:18:49,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:49,552 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_atomic_add_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:49,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:49,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1553235634, now seen corresponding path program 1 times [2021-08-27 06:18:49,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:49,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585097513] [2021-08-27 06:18:49,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:49,553 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:49,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:49,553 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:49,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-27 06:18:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:50,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 28 conjunts are in the unsatisfiable core [2021-08-27 06:18:50,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:50,202 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 [2021-08-27 06:18:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:50,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:51,802 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:51,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585097513] [2021-08-27 06:18:51,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585097513] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:51,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:51,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 14] imperfect sequences [] total 28 [2021-08-27 06:18:51,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451875893] [2021-08-27 06:18:51,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-08-27 06:18:51,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:51,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-08-27 06:18:51,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2021-08-27 06:18:51,803 INFO L87 Difference]: Start difference. First operand 148 states and 152 transitions. Second operand has 29 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 19 states have internal predecessors, (68), 10 states have call successors, (21), 8 states have call predecessors, (21), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:18:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:53,760 INFO L93 Difference]: Finished difference Result 146 states and 150 transitions. [2021-08-27 06:18:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-27 06:18:53,761 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 19 states have internal predecessors, (68), 10 states have call successors, (21), 8 states have call predecessors, (21), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 72 [2021-08-27 06:18:53,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:53,762 INFO L225 Difference]: With dead ends: 146 [2021-08-27 06:18:53,762 INFO L226 Difference]: Without dead ends: 146 [2021-08-27 06:18:53,762 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1062.6ms TimeCoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 06:18:53,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-08-27 06:18:53,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-08-27 06:18:53,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 94 states have (on average 1.1808510638297873) internal successors, (111), 107 states have internal predecessors, (111), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:53,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2021-08-27 06:18:53,764 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 72 [2021-08-27 06:18:53,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:53,765 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2021-08-27 06:18:53,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 19 states have internal predecessors, (68), 10 states have call successors, (21), 8 states have call predecessors, (21), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:18:53,765 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2021-08-27 06:18:53,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-08-27 06:18:53,765 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:53,765 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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] [2021-08-27 06:18:53,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:53,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:53,975 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:53,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:53,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1822676548, now seen corresponding path program 1 times [2021-08-27 06:18:53,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:53,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046241286] [2021-08-27 06:18:53,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:53,976 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:53,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:53,976 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:53,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-27 06:18:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:54,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:18:54,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:54,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:55,129 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:55,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046241286] [2021-08-27 06:18:55,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046241286] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:55,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:55,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-08-27 06:18:55,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922504172] [2021-08-27 06:18:55,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:18:55,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:55,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:18:55,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:18:55,130 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand has 11 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 06:18:55,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:55,181 INFO L93 Difference]: Finished difference Result 149 states and 152 transitions. [2021-08-27 06:18:55,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:18:55,182 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2021-08-27 06:18:55,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:55,182 INFO L225 Difference]: With dead ends: 149 [2021-08-27 06:18:55,182 INFO L226 Difference]: Without dead ends: 146 [2021-08-27 06:18:55,182 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 66.6ms TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:18:55,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-08-27 06:18:55,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-08-27 06:18:55,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 94 states have (on average 1.1702127659574468) internal successors, (110), 106 states have internal predecessors, (110), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 149 transitions. [2021-08-27 06:18:55,185 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 149 transitions. Word has length 81 [2021-08-27 06:18:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:55,185 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 149 transitions. [2021-08-27 06:18:55,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 06:18:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 149 transitions. [2021-08-27 06:18:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-27 06:18:55,186 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:55,186 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1] [2021-08-27 06:18:55,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:55,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:55,394 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:55,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:55,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1759296345, now seen corresponding path program 1 times [2021-08-27 06:18:55,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:55,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556319769] [2021-08-27 06:18:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:55,395 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:55,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:55,396 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:55,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-08-27 06:18:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:56,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:18:56,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:56,140 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 [2021-08-27 06:18:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:56,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:56,982 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:56,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556319769] [2021-08-27 06:18:56,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556319769] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:56,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:56,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-08-27 06:18:56,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421537015] [2021-08-27 06:18:56,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 06:18:56,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:56,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 06:18:56,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:18:56,983 INFO L87 Difference]: Start difference. First operand 146 states and 149 transitions. Second operand has 17 states, 14 states have (on average 5.857142857142857) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (25), 6 states have call predecessors, (25), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2021-08-27 06:18:57,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:57,735 INFO L93 Difference]: Finished difference Result 160 states and 162 transitions. [2021-08-27 06:18:57,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:18:57,735 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 5.857142857142857) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (25), 6 states have call predecessors, (25), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 94 [2021-08-27 06:18:57,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:57,736 INFO L225 Difference]: With dead ends: 160 [2021-08-27 06:18:57,736 INFO L226 Difference]: Without dead ends: 160 [2021-08-27 06:18:57,736 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 155 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 321.1ms TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-08-27 06:18:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-08-27 06:18:57,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 144. [2021-08-27 06:18:57,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 94 states have (on average 1.148936170212766) internal successors, (108), 104 states have internal predecessors, (108), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:57,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 147 transitions. [2021-08-27 06:18:57,739 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 147 transitions. Word has length 94 [2021-08-27 06:18:57,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:57,739 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 147 transitions. [2021-08-27 06:18:57,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 5.857142857142857) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (25), 6 states have call predecessors, (25), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2021-08-27 06:18:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 147 transitions. [2021-08-27 06:18:57,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-27 06:18:57,740 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:57,740 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1] [2021-08-27 06:18:57,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-08-27 06:18:57,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:57,950 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_atomic_sub_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:57,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:57,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1759296346, now seen corresponding path program 1 times [2021-08-27 06:18:57,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:57,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615946655] [2021-08-27 06:18:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:57,951 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:57,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:57,951 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:57,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-08-27 06:18:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:58,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-27 06:18:58,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:58,775 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 [2021-08-27 06:18:59,396 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:59,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:00,844 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:00,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615946655] [2021-08-27 06:19:00,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615946655] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:00,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:00,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-08-27 06:19:00,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536222040] [2021-08-27 06:19:00,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-08-27 06:19:00,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:00,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-08-27 06:19:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-08-27 06:19:00,845 INFO L87 Difference]: Start difference. First operand 144 states and 147 transitions. Second operand has 33 states, 28 states have (on average 3.5) internal successors, (98), 21 states have internal predecessors, (98), 12 states have call successors, (29), 10 states have call predecessors, (29), 6 states have return successors, (21), 10 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-27 06:19:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:03,128 INFO L93 Difference]: Finished difference Result 142 states and 145 transitions. [2021-08-27 06:19:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:19:03,130 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 3.5) internal successors, (98), 21 states have internal predecessors, (98), 12 states have call successors, (29), 10 states have call predecessors, (29), 6 states have return successors, (21), 10 states have call predecessors, (21), 6 states have call successors, (21) Word has length 94 [2021-08-27 06:19:03,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:03,131 INFO L225 Difference]: With dead ends: 142 [2021-08-27 06:19:03,131 INFO L226 Difference]: Without dead ends: 142 [2021-08-27 06:19:03,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 151 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1447.0ms TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-08-27 06:19:03,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-08-27 06:19:03,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-08-27 06:19:03,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 94 states have (on average 1.127659574468085) internal successors, (106), 102 states have internal predecessors, (106), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:19:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 145 transitions. [2021-08-27 06:19:03,134 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 145 transitions. Word has length 94 [2021-08-27 06:19:03,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:03,134 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 145 transitions. [2021-08-27 06:19:03,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 3.5) internal successors, (98), 21 states have internal predecessors, (98), 12 states have call successors, (29), 10 states have call predecessors, (29), 6 states have return successors, (21), 10 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-27 06:19:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 145 transitions. [2021-08-27 06:19:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-08-27 06:19:03,134 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:03,134 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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] [2021-08-27 06:19:03,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:03,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:03,335 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:03,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:03,335 INFO L82 PathProgramCache]: Analyzing trace with hash -207269007, now seen corresponding path program 1 times [2021-08-27 06:19:03,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:03,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782680670] [2021-08-27 06:19:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:03,336 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:03,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:03,336 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:03,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-08-27 06:19:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:04,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:19:04,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:04,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:04,750 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:04,751 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:04,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782680670] [2021-08-27 06:19:04,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782680670] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:04,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:04,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-08-27 06:19:04,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286146811] [2021-08-27 06:19:04,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:19:04,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:04,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:19:04,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:04,752 INFO L87 Difference]: Start difference. First operand 142 states and 145 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:19:04,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:04,812 INFO L93 Difference]: Finished difference Result 144 states and 146 transitions. [2021-08-27 06:19:04,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:19:04,813 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 92 [2021-08-27 06:19:04,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:04,813 INFO L225 Difference]: With dead ends: 144 [2021-08-27 06:19:04,814 INFO L226 Difference]: Without dead ends: 142 [2021-08-27 06:19:04,814 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 63.2ms TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:19:04,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-08-27 06:19:04,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-08-27 06:19:04,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 94 states have (on average 1.1170212765957446) internal successors, (105), 102 states have internal predecessors, (105), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:19:04,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 144 transitions. [2021-08-27 06:19:04,816 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 144 transitions. Word has length 92 [2021-08-27 06:19:04,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:04,817 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 144 transitions. [2021-08-27 06:19:04,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:19:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 144 transitions. [2021-08-27 06:19:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-27 06:19:04,817 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:04,817 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:04,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:05,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:05,028 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:05,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:05,028 INFO L82 PathProgramCache]: Analyzing trace with hash -889618677, now seen corresponding path program 1 times [2021-08-27 06:19:05,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:05,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850106969] [2021-08-27 06:19:05,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:05,029 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:05,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:05,029 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:05,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-08-27 06:19:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:05,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 06:19:05,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:06,002 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 [2021-08-27 06:19:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:06,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:07,168 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:07,168 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:07,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850106969] [2021-08-27 06:19:07,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850106969] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:07,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:07,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-08-27 06:19:07,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142523482] [2021-08-27 06:19:07,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 06:19:07,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:07,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 06:19:07,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-08-27 06:19:07,169 INFO L87 Difference]: Start difference. First operand 142 states and 144 transitions. Second operand has 21 states, 17 states have (on average 5.705882352941177) internal successors, (97), 13 states have internal predecessors, (97), 9 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2021-08-27 06:19:08,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:08,172 INFO L93 Difference]: Finished difference Result 152 states and 153 transitions. [2021-08-27 06:19:08,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:19:08,173 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 5.705882352941177) internal successors, (97), 13 states have internal predecessors, (97), 9 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) Word has length 107 [2021-08-27 06:19:08,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:08,173 INFO L225 Difference]: With dead ends: 152 [2021-08-27 06:19:08,173 INFO L226 Difference]: Without dead ends: 152 [2021-08-27 06:19:08,174 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 173 SyntacticMatches, 21 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 535.3ms TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-08-27 06:19:08,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-08-27 06:19:08,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 140. [2021-08-27 06:19:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 94 states have (on average 1.0957446808510638) internal successors, (103), 100 states have internal predecessors, (103), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:19:08,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 142 transitions. [2021-08-27 06:19:08,176 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 142 transitions. Word has length 107 [2021-08-27 06:19:08,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:08,177 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 142 transitions. [2021-08-27 06:19:08,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 5.705882352941177) internal successors, (97), 13 states have internal predecessors, (97), 9 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2021-08-27 06:19:08,177 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 142 transitions. [2021-08-27 06:19:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-27 06:19:08,177 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:08,177 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:08,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:08,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:08,387 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:08,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:08,387 INFO L82 PathProgramCache]: Analyzing trace with hash -889618676, now seen corresponding path program 1 times [2021-08-27 06:19:08,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:08,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661508595] [2021-08-27 06:19:08,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:08,388 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:08,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:08,388 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:08,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-08-27 06:19:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:09,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 44 conjunts are in the unsatisfiable core [2021-08-27 06:19:09,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:09,392 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 [2021-08-27 06:19:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:10,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:12,277 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:12,277 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:12,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661508595] [2021-08-27 06:19:12,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661508595] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:12,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:12,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-08-27 06:19:12,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937139356] [2021-08-27 06:19:12,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-08-27 06:19:12,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:12,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-08-27 06:19:12,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-08-27 06:19:12,279 INFO L87 Difference]: Start difference. First operand 140 states and 142 transitions. Second operand has 41 states, 34 states have (on average 3.411764705882353) internal successors, (116), 25 states have internal predecessors, (116), 16 states have call successors, (35), 14 states have call predecessors, (35), 6 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) [2021-08-27 06:19:15,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:15,602 INFO L93 Difference]: Finished difference Result 138 states and 140 transitions. [2021-08-27 06:19:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:19:15,603 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 34 states have (on average 3.411764705882353) internal successors, (116), 25 states have internal predecessors, (116), 16 states have call successors, (35), 14 states have call predecessors, (35), 6 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) Word has length 107 [2021-08-27 06:19:15,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:15,604 INFO L225 Difference]: With dead ends: 138 [2021-08-27 06:19:15,604 INFO L226 Difference]: Without dead ends: 138 [2021-08-27 06:19:15,604 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 167 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2271.6ms TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2021-08-27 06:19:15,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-08-27 06:19:15,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2021-08-27 06:19:15,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 94 states have (on average 1.074468085106383) internal successors, (101), 98 states have internal predecessors, (101), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:19:15,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 140 transitions. [2021-08-27 06:19:15,606 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 140 transitions. Word has length 107 [2021-08-27 06:19:15,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:15,607 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 140 transitions. [2021-08-27 06:19:15,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 34 states have (on average 3.411764705882353) internal successors, (116), 25 states have internal predecessors, (116), 16 states have call successors, (35), 14 states have call predecessors, (35), 6 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) [2021-08-27 06:19:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 140 transitions. [2021-08-27 06:19:15,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-08-27 06:19:15,607 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:15,607 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:15,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:15,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:15,817 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:15,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:15,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1613444290, now seen corresponding path program 1 times [2021-08-27 06:19:15,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:15,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862924757] [2021-08-27 06:19:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:15,818 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:15,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:15,818 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:15,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-08-27 06:19:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:16,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 06:19:16,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:18,146 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:18,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:18,968 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:18,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862924757] [2021-08-27 06:19:18,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862924757] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:18,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:18,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-08-27 06:19:18,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751476340] [2021-08-27 06:19:18,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-08-27 06:19:18,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:18,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-08-27 06:19:18,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-08-27 06:19:18,969 INFO L87 Difference]: Start difference. First operand 138 states and 140 transitions. Second operand has 40 states, 33 states have (on average 3.8181818181818183) internal successors, (126), 24 states have internal predecessors, (126), 17 states have call successors, (39), 15 states have call predecessors, (39), 7 states have return successors, (24), 13 states have call predecessors, (24), 9 states have call successors, (24) [2021-08-27 06:19:20,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:20,464 INFO L93 Difference]: Finished difference Result 137 states and 139 transitions. [2021-08-27 06:19:20,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:19:20,465 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 33 states have (on average 3.8181818181818183) internal successors, (126), 24 states have internal predecessors, (126), 17 states have call successors, (39), 15 states have call predecessors, (39), 7 states have return successors, (24), 13 states have call predecessors, (24), 9 states have call successors, (24) Word has length 110 [2021-08-27 06:19:20,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:20,466 INFO L225 Difference]: With dead ends: 137 [2021-08-27 06:19:20,466 INFO L226 Difference]: Without dead ends: 137 [2021-08-27 06:19:20,466 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 174 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1219.0ms TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-08-27 06:19:20,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-08-27 06:19:20,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-08-27 06:19:20,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 94 states have (on average 1.0638297872340425) internal successors, (100), 97 states have internal predecessors, (100), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:19:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 139 transitions. [2021-08-27 06:19:20,469 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 139 transitions. Word has length 110 [2021-08-27 06:19:20,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:20,469 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 139 transitions. [2021-08-27 06:19:20,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 33 states have (on average 3.8181818181818183) internal successors, (126), 24 states have internal predecessors, (126), 17 states have call successors, (39), 15 states have call predecessors, (39), 7 states have return successors, (24), 13 states have call predecessors, (24), 9 states have call successors, (24) [2021-08-27 06:19:20,469 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 139 transitions. [2021-08-27 06:19:20,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-27 06:19:20,470 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:20,470 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:20,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-08-27 06:19:20,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:20,681 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:20,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:20,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1140166607, now seen corresponding path program 1 times [2021-08-27 06:19:20,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:20,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063735807] [2021-08-27 06:19:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:20,682 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:20,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:20,682 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:20,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-08-27 06:19:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:21,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 86 conjunts are in the unsatisfiable core [2021-08-27 06:19:21,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:22,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:22,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:22,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:22,154 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:19:22,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:19:22,192 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-08-27 06:19:22,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 30 treesize of output 36 [2021-08-27 06:19:24,413 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_1 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_DerPreprocessor_1) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0)))) |c_#memory_int|)) is different from true [2021-08-27 06:19:24,529 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-08-27 06:19:24,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 62 treesize of output 59 [2021-08-27 06:19:25,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:19:25,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:19:25,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:25,907 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:19:25,907 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:19:25,916 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:19:25,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 190 treesize of output 162 [2021-08-27 06:19:27,132 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:19:27,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 64 [2021-08-27 06:19:27,239 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:27,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:30,611 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 1172 treesize of output 1062 [2021-08-27 06:19:30,628 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-08-27 06:19:30,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33149 treesize of output 16765 [2021-08-27 06:19:58,779 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_kobject_get_#in~kobj.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse1 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv15 32))) (.cse2 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv14 32))) (.cse3 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv13 32))) (.cse4 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv12 32)))) (or (not (= (_ bv1 32) (let ((.cse0 (select (store |c_#memory_int| c_ldv_kref_get_~kref.base (let ((.cse9 (bvadd c_ldv_kref_get_~kref.offset (_ bv3 32))) (.cse8 (bvadd c_ldv_kref_get_~kref.offset (_ bv2 32))) (.cse7 (bvadd c_ldv_kref_get_~kref.offset (_ bv1 32))) (.cse5 (select |c_#memory_int| c_ldv_kref_get_~kref.base))) (let ((.cse6 (bvadd (concat (concat (concat (select .cse5 .cse9) (select .cse5 .cse8)) (select .cse5 .cse7)) (select .cse5 c_ldv_kref_get_~kref.offset)) (_ bv1 32)))) (store (store (store (store .cse5 c_ldv_kref_get_~kref.offset ((_ extract 7 0) .cse6)) .cse7 ((_ extract 15 8) .cse6)) .cse8 ((_ extract 23 16) .cse6)) .cse9 ((_ extract 31 24) .cse6))))) |v_ldv_kobject_get_#in~kobj.base_BEFORE_CALL_2|))) (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4))))) (= (let ((.cse10 (select (store |c_old(#memory_int)| |c_ldv_kref_get_#in~kref.base| (let ((.cse15 (bvadd |c_ldv_kref_get_#in~kref.offset| (_ bv3 32))) (.cse14 (bvadd |c_ldv_kref_get_#in~kref.offset| (_ bv2 32))) (.cse13 (bvadd |c_ldv_kref_get_#in~kref.offset| (_ bv1 32))) (.cse11 (select |c_old(#memory_int)| |c_ldv_kref_get_#in~kref.base|))) (let ((.cse12 (bvadd (_ bv1 32) (concat (concat (concat (select .cse11 .cse15) (select .cse11 .cse14)) (select .cse11 .cse13)) (select .cse11 |c_ldv_kref_get_#in~kref.offset|))))) (store (store (store (store .cse11 |c_ldv_kref_get_#in~kref.offset| ((_ extract 7 0) .cse12)) .cse13 ((_ extract 15 8) .cse12)) .cse14 ((_ extract 23 16) .cse12)) .cse15 ((_ extract 31 24) .cse12))))) |v_ldv_kobject_get_#in~kobj.base_BEFORE_CALL_2|))) (concat (concat (concat (select .cse10 .cse1) (select .cse10 .cse2)) (select .cse10 .cse3)) (select .cse10 .cse4))) (_ bv1 32))))) is different from false [2021-08-27 06:19:58,828 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:58,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063735807] [2021-08-27 06:19:58,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:19:58,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [993677564] [2021-08-27 06:19:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:58,829 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:19:58,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:19:58,840 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:19:58,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2021-08-27 06:20:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:00,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 130 conjunts are in the unsatisfiable core [2021-08-27 06:20:00,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:00,860 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 13 treesize of output 9 [2021-08-27 06:20:00,993 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-08-27 06:20:00,993 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 25 treesize of output 24 [2021-08-27 06:20:01,176 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-08-27 06:20:01,177 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-08-27 06:20:01,419 INFO L354 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2021-08-27 06:20:01,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-08-27 06:20:01,739 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-08-27 06:20:01,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-08-27 06:20:02,145 INFO L354 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2021-08-27 06:20:02,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 80 [2021-08-27 06:20:02,534 INFO L354 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2021-08-27 06:20:02,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 80 treesize of output 94 [2021-08-27 06:20:02,998 INFO L354 Elim1Store]: treesize reduction 444, result has 12.3 percent of original size [2021-08-27 06:20:02,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 109 [2021-08-27 06:20:03,602 INFO L354 Elim1Store]: treesize reduction 566, result has 11.3 percent of original size [2021-08-27 06:20:03,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 104 treesize of output 124 [2021-08-27 06:20:04,513 INFO L354 Elim1Store]: treesize reduction 702, result has 10.5 percent of original size [2021-08-27 06:20:04,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 116 treesize of output 139 [2021-08-27 06:20:05,341 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:20:05,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:20:06,302 INFO L354 Elim1Store]: treesize reduction 942, result has 9.4 percent of original size [2021-08-27 06:20:06,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 135 treesize of output 164 [2021-08-27 06:20:07,463 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-08-27 06:20:07,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-08-27 06:20:08,757 INFO L354 Elim1Store]: treesize reduction 1296, result has 8.2 percent of original size [2021-08-27 06:20:08,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 158 treesize of output 193 [2021-08-27 06:20:10,234 INFO L354 Elim1Store]: treesize reduction 1496, result has 7.8 percent of original size [2021-08-27 06:20:10,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 170 treesize of output 208 [2021-08-27 06:20:11,838 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:20:11,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:20:17,981 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_2) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_5) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:20:20,043 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_2) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_4) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_5) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:20:20,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:20,225 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:20,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:20:24,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:24,987 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:24,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 137 treesize of output 121 [2021-08-27 06:20:28,876 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:28,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 121 treesize of output 121 [2021-08-27 06:20:32,105 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:32,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 92 treesize of output 136 [2021-08-27 06:20:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:20:33,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:50,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:20:50,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662074243] [2021-08-27 06:20:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:50,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:20:50,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:20:50,376 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:20:50,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-08-27 06:20:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:51,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 86 conjunts are in the unsatisfiable core [2021-08-27 06:20:51,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:52,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:52,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:52,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:52,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:52,122 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:52,162 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-08-27 06:20:52,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 30 treesize of output 36 [2021-08-27 06:20:53,794 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_22 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_DerPreprocessor_22) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0)))))) is different from true [2021-08-27 06:20:53,912 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-08-27 06:20:53,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 62 treesize of output 59 [2021-08-27 06:20:54,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:54,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,400 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:54,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,401 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:54,401 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:54,422 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:54,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 190 treesize of output 162 [2021-08-27 06:20:54,743 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:54,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 64 [2021-08-27 06:20:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:54,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:55,767 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 1172 treesize of output 1062 [2021-08-27 06:20:55,786 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-08-27 06:20:55,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65661 treesize of output 32893 [2021-08-27 06:21:13,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:21:13,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:21:13,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:21:13,178 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:21:13,178 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:21:13,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:21:13,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:13,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:21:13,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:21:13,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:21:13,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:21:13,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2021-08-27 06:21:13,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-08-27 06:21:13,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-08-27 06:21:13,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:21:13,796 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:21:13,798 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 06:21:13,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:21:13 BoogieIcfgContainer [2021-08-27 06:21:13,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:21:13,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:21:13,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:21:13,806 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:21:13,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:24" (3/4) ... [2021-08-27 06:21:13,809 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:21:13,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:21:13,810 INFO L168 Benchmark]: Toolchain (without parser) took 171052.68 ms. Allocated memory was 58.7 MB in the beginning and 264.2 MB in the end (delta: 205.5 MB). Free memory was 36.4 MB in the beginning and 121.3 MB in the end (delta: -84.9 MB). Peak memory consumption was 121.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:13,811 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 41.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:21:13,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 489.41 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.3 MB in the beginning and 52.1 MB in the end (delta: -15.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:13,811 INFO L168 Benchmark]: Boogie Preprocessor took 99.16 ms. Allocated memory is still 71.3 MB. Free memory was 52.1 MB in the beginning and 47.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:13,813 INFO L168 Benchmark]: RCFGBuilder took 1183.63 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 47.4 MB in the beginning and 42.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:13,813 INFO L168 Benchmark]: TraceAbstraction took 169270.84 ms. Allocated memory was 86.0 MB in the beginning and 264.2 MB in the end (delta: 178.3 MB). Free memory was 41.7 MB in the beginning and 122.4 MB in the end (delta: -80.6 MB). Peak memory consumption was 97.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:13,813 INFO L168 Benchmark]: Witness Printer took 3.74 ms. Allocated memory is still 264.2 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:21:13,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 41.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 489.41 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.3 MB in the beginning and 52.1 MB in the end (delta: -15.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.16 ms. Allocated memory is still 71.3 MB. Free memory was 52.1 MB in the beginning and 47.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1183.63 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 47.4 MB in the beginning and 42.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 169270.84 ms. Allocated memory was 86.0 MB in the beginning and 264.2 MB in the end (delta: 178.3 MB). Free memory was 41.7 MB in the beginning and 122.4 MB in the end (delta: -80.6 MB). Peak memory consumption was 97.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.74 ms. Allocated memory is still 264.2 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L764] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; [L658] EXPR v->counter [L658] temp = v->counter [L659] temp += i [L660] v->counter = temp [L661] return temp; [L686] RET ldv_atomic_add_return(1, (&kref->refcount)) [L718] RET ldv_kref_get(&kobj->kref) [L719] return kobj; [L760] RET ldv_kobject_get(kobj) [L761] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: 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 47 procedures, 333 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 169207.7ms, OverallIterations: 27, TraceHistogramMax: 16, EmptinessCheckTime: 35.6ms, AutomataDifference: 18032.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3216 SDtfs, 1534 SDslu, 23820 SDs, 0 SdLazy, 12270 SolverSat, 349 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13158.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2984 GetRequests, 2443 SyntacticMatches, 98 SemanticMatches, 443 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2220 ImplicationChecksByTransitivity, 10650.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=0, InterpolantAutomatonStates: 313, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 145.0ms AutomataMinimizationTime, 26 MinimizatonAttempts, 98 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 392.0ms SsaConstructionTime, 1450.2ms SatisfiabilityAnalysisTime, 20457.7ms InterpolantComputationTime, 1466 NumberOfCodeBlocks, 1430 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2880 ConstructedInterpolants, 478 QuantifiedInterpolants, 12273 SizeOfPredicates, 111 NumberOfNonLiveVariables, 6024 ConjunctsInSsa, 385 ConjunctsInUnsatCore, 52 InterpolantComputations, 46 PerfectInterpolantSequences, 3788/4046 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 [2021-08-27 06:21:13,907 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...