./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.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_3-1.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 42bbcc36bf39908bb38d9521b1c7b6b031a006ff .................................................................................................................................... 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_3-1.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 42bbcc36bf39908bb38d9521b1c7b6b031a006ff .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 06:19:06,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:19:06,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:19:06,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:19:06,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:19:06,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:19:06,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:19:06,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:19:06,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:19:07,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:19:07,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:19:07,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:19:07,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:19:07,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:19:07,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:19:07,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:19:07,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:19:07,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:19:07,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:19:07,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:19:07,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:19:07,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:19:07,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:19:07,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:19:07,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:19:07,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:19:07,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:19:07,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:19:07,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:19:07,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:19:07,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:19:07,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:19:07,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:19:07,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:19:07,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:19:07,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:19:07,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:19:07,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:19:07,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:19:07,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:19:07,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:19:07,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:19:07,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:19:07,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:19:07,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:19:07,079 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:19:07,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:19:07,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:19:07,082 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:19:07,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:19:07,082 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:19:07,082 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:19:07,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:19:07,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:19:07,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:19:07,084 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:19:07,084 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:19:07,084 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:19:07,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:19:07,084 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:19:07,084 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:19:07,085 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:19:07,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:19:07,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:19:07,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:19:07,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:19:07,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:19:07,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:19:07,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:19:07,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:19:07,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:19:07,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42bbcc36bf39908bb38d9521b1c7b6b031a006ff [2021-08-27 06:19:07,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:19:07,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:19:07,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:19:07,437 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:19:07,438 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:19:07,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2021-08-27 06:19:07,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51be7746c/f6d04349de5c4900a5485c9ea48828f0/FLAGd4abb49c5 [2021-08-27 06:19:07,981 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:19:07,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2021-08-27 06:19:08,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51be7746c/f6d04349de5c4900a5485c9ea48828f0/FLAGd4abb49c5 [2021-08-27 06:19:08,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51be7746c/f6d04349de5c4900a5485c9ea48828f0 [2021-08-27 06:19:08,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:19:08,354 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:19:08,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:19:08,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:19:08,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:19:08,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:19:08" (1/1) ... [2021-08-27 06:19:08,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da5eb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:08, skipping insertion in model container [2021-08-27 06:19:08,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:19:08" (1/1) ... [2021-08-27 06:19:08,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:19:08,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:19:08,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:19:08,832 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 06:19:08,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fac5590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:08, skipping insertion in model container [2021-08-27 06:19:08,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:19:08,834 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:19:08,836 INFO L168 Benchmark]: Toolchain (without parser) took 480.82 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 37.3 MB in the end (delta: -3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:19:08,837 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 39.1 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:19:08,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.27 ms. Allocated memory is still 56.6 MB. Free memory was 33.9 MB in the beginning and 37.3 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:19:08,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 39.1 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 476.27 ms. Allocated memory is still 56.6 MB. Free memory was 33.9 MB in the beginning and 37.3 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 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 06:19:10,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:19:10,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:19:10,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:19:10,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:19:10,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:19:10,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:19:10,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:19:10,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:19:10,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:19:10,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:19:10,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:19:10,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:19:10,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:19:10,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:19:10,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:19:10,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:19:10,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:19:10,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:19:10,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:19:10,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:19:10,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:19:10,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:19:10,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:19:10,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:19:10,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:19:10,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:19:10,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:19:10,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:19:10,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:19:10,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:19:10,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:19:10,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:19:10,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:19:10,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:19:10,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:19:10,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:19:10,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:19:10,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:19:10,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:19:10,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:19:10,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:19:10,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:19:10,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:19:10,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:19:10,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:19:10,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:19:10,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:19:10,644 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:19:10,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:19:10,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:19:10,645 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:19:10,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:19:10,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:19:10,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:19:10,646 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:19:10,646 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:19:10,647 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:19:10,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:19:10,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:19:10,647 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:19:10,647 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:19:10,647 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:19:10,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:19:10,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:19:10,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:19:10,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:19:10,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:19:10,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:19:10,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:19:10,649 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:19:10,649 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:19:10,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:19:10,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:19:10,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42bbcc36bf39908bb38d9521b1c7b6b031a006ff [2021-08-27 06:19:10,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:19:10,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:19:10,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:19:10,970 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:19:10,970 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:19:10,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2021-08-27 06:19:11,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f193d82/45b698653a0d4ff4a55a9315ba5f744a/FLAG25276b34e [2021-08-27 06:19:11,531 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:19:11,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2021-08-27 06:19:11,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f193d82/45b698653a0d4ff4a55a9315ba5f744a/FLAG25276b34e [2021-08-27 06:19:11,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f193d82/45b698653a0d4ff4a55a9315ba5f744a [2021-08-27 06:19:11,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:19:11,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:19:11,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:19:11,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:19:11,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:19:11,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:19:11" (1/1) ... [2021-08-27 06:19:11,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b1fd517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:11, skipping insertion in model container [2021-08-27 06:19:11,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:19:11" (1/1) ... [2021-08-27 06:19:11,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:19:11,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:19:12,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:19:12,204 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:19:12,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:19:12,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:19:12,251 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:19:12,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:19:12,351 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:19:12,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12 WrapperNode [2021-08-27 06:19:12,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:19:12,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:19:12,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:19:12,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:19:12,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12" (1/1) ... [2021-08-27 06:19:12,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12" (1/1) ... [2021-08-27 06:19:12,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12" (1/1) ... [2021-08-27 06:19:12,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12" (1/1) ... [2021-08-27 06:19:12,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12" (1/1) ... [2021-08-27 06:19:12,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12" (1/1) ... [2021-08-27 06:19:12,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12" (1/1) ... [2021-08-27 06:19:12,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:19:12,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:19:12,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:19:12,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:19:12,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12" (1/1) ... [2021-08-27 06:19:12,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:19:12,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:19:12,500 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 06:19:12,539 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 06:19:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:19:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:19:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:19:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:19:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:19:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:19:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:19:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:19:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:19:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:19:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:19:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:19:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:19:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:19:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:19:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:19:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:19:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:19:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:19:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:19:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:19:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:19:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:19:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:19:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:19:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:19:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:19:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:19:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:19:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:19:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:19:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:19:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:19:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:19:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:19:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:19:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:19:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:19:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:19:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:19:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:19:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:19:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2021-08-27 06:19:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2021-08-27 06:19:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:19:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:19:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:19:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:19:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:19:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:19:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:19:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:19:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:19:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:19:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:19:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:19:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:19:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:19:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:19:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:19:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:19:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:19:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:19:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:19:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:19:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:19:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:19:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:19:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:19:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:19:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:19:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:19:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:19:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:19:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:19:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:19:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:19:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:19:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:19:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:19:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:19:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:19:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:19:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:19:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:19:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:19:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:19:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:19:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:19:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:19:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:19:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:19:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:19:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:19:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:19:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:19:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:19:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:19:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:19:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:19:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:19:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:19:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:19:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:19:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:19:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:19:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:19:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:19:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:19:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:19:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:19:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:19:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:19:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:19:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:19:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:19:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:19:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:19:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:19:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:19:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:19:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:19:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:19:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:19:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:19:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:19:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:19:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:19:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:19:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:19:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:19:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:19:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:19:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:19:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:19:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:19:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:19:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:19:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:19:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:19:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:19:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:19:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:19:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:19:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:19:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:19:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:19:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:19:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:19:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:19:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:19:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:19:13,166 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:19:13,416 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:19:13,669 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:19:13,669 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:19:13,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:19:13 BoogieIcfgContainer [2021-08-27 06:19:13,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:19:13,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:19:13,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:19:13,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:19:13,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:19:11" (1/3) ... [2021-08-27 06:19:13,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3cc462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:19:13, skipping insertion in model container [2021-08-27 06:19:13,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:12" (2/3) ... [2021-08-27 06:19:13,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3cc462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:19:13, skipping insertion in model container [2021-08-27 06:19:13,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:19:13" (3/3) ... [2021-08-27 06:19:13,683 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-1.i [2021-08-27 06:19:13,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:19:13,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-08-27 06:19:13,732 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:19:13,739 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 06:19:13,739 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-08-27 06:19:13,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 136 states have internal predecessors, (145), 25 states have call successors, (25), 23 states have call predecessors, (25), 23 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 06:19:13,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:19:13,772 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:13,772 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 06:19:13,772 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 06:19:13,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:13,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1560720609, now seen corresponding path program 1 times [2021-08-27 06:19:13,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:13,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107158428] [2021-08-27 06:19:13,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:13,788 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:13,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:13,794 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 06:19:13,803 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 06:19:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:14,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:19:14,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:14,189 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 06:19:14,253 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 06:19:14,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:14,368 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 06:19:14,369 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:14,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107158428] [2021-08-27 06:19:14,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107158428] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:14,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:14,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:19:14,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517705604] [2021-08-27 06:19:14,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:19:14,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:14,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:19:14,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:14,396 INFO L87 Difference]: Start difference. First operand has 183 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 136 states have internal predecessors, (145), 25 states have call successors, (25), 23 states have call predecessors, (25), 23 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) 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 06:19:14,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:14,641 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2021-08-27 06:19:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:19:14,642 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 06:19:14,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:14,651 INFO L225 Difference]: With dead ends: 165 [2021-08-27 06:19:14,651 INFO L226 Difference]: Without dead ends: 162 [2021-08-27 06:19:14,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:14,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-08-27 06:19:14,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2021-08-27 06:19:14,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 87 states have (on average 1.3793103448275863) internal successors, (120), 113 states have internal predecessors, (120), 24 states have call successors, (24), 22 states have call predecessors, (24), 22 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2021-08-27 06:19:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 168 transitions. [2021-08-27 06:19:14,690 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 168 transitions. Word has length 17 [2021-08-27 06:19:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:14,691 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 168 transitions. [2021-08-27 06:19:14,691 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 06:19:14,691 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 168 transitions. [2021-08-27 06:19:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:19:14,691 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:14,692 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 06:19:14,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-27 06:19:14,901 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 06:19:14,901 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 06:19:14,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:14,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1560720608, now seen corresponding path program 1 times [2021-08-27 06:19:14,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:14,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141481284] [2021-08-27 06:19:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:14,903 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:14,910 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 06:19:14,911 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 06:19:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:15,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:19:15,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:15,156 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 06:19:15,244 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 06:19:15,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:15,613 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 06:19:15,613 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:15,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141481284] [2021-08-27 06:19:15,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141481284] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:15,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:15,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-27 06:19:15,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558879607] [2021-08-27 06:19:15,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:19:15,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:15,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:19:15,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:19:15,623 INFO L87 Difference]: Start difference. First operand 156 states and 168 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 06:19:16,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:16,117 INFO L93 Difference]: Finished difference Result 161 states and 173 transitions. [2021-08-27 06:19:16,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:19:16,133 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 06:19:16,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:16,135 INFO L225 Difference]: With dead ends: 161 [2021-08-27 06:19:16,135 INFO L226 Difference]: Without dead ends: 161 [2021-08-27 06:19:16,136 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 188.3ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-08-27 06:19:16,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 156. [2021-08-27 06:19:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 113 states have internal predecessors, (119), 24 states have call successors, (24), 22 states have call predecessors, (24), 22 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2021-08-27 06:19:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 167 transitions. [2021-08-27 06:19:16,150 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 167 transitions. Word has length 17 [2021-08-27 06:19:16,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:16,150 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 167 transitions. [2021-08-27 06:19:16,151 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 06:19:16,151 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 167 transitions. [2021-08-27 06:19:16,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:19:16,152 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:16,152 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 06:19:16,165 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 06:19:16,361 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 06:19:16,362 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 06:19:16,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:16,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1532091458, now seen corresponding path program 1 times [2021-08-27 06:19:16,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:16,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80823775] [2021-08-27 06:19:16,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:16,363 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:16,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:16,366 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 06:19:16,400 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 06:19:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:16,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:19:16,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:16,684 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 06:19:16,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:16,795 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 06:19:16,795 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:16,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80823775] [2021-08-27 06:19:16,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80823775] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:16,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:16,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:19:16,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422620862] [2021-08-27 06:19:16,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:19:16,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:16,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:19:16,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:16,798 INFO L87 Difference]: Start difference. First operand 156 states and 167 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 06:19:16,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:16,825 INFO L93 Difference]: Finished difference Result 155 states and 164 transitions. [2021-08-27 06:19:16,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:19:16,826 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 06:19:16,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:16,827 INFO L225 Difference]: With dead ends: 155 [2021-08-27 06:19:16,827 INFO L226 Difference]: Without dead ends: 155 [2021-08-27 06:19:16,828 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:16,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-08-27 06:19:16,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2021-08-27 06:19:16,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 110 states have internal predecessors, (116), 23 states have call successors, (23), 22 states have call predecessors, (23), 22 states have return successors, (23), 23 states have call predecessors, (23), 22 states have call successors, (23) [2021-08-27 06:19:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 162 transitions. [2021-08-27 06:19:16,838 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 162 transitions. Word has length 17 [2021-08-27 06:19:16,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:16,844 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 162 transitions. [2021-08-27 06:19:16,845 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 06:19:16,845 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2021-08-27 06:19:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:19:16,846 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:16,846 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] [2021-08-27 06:19:16,863 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 06:19:17,055 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 06:19:17,055 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 06:19:17,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:17,056 INFO L82 PathProgramCache]: Analyzing trace with hash 106477568, now seen corresponding path program 1 times [2021-08-27 06:19:17,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:17,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155543932] [2021-08-27 06:19:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:17,057 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:17,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:17,058 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 06:19:17,061 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 06:19:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:17,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:19:17,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:17,378 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 06:19:17,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:17,483 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 06:19:17,483 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:17,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155543932] [2021-08-27 06:19:17,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155543932] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:17,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:17,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:19:17,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730456053] [2021-08-27 06:19:17,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:19:17,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:17,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:19:17,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:17,486 INFO L87 Difference]: Start difference. First operand 153 states and 162 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:17,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:17,504 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2021-08-27 06:19:17,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:19:17,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-08-27 06:19:17,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:17,507 INFO L225 Difference]: With dead ends: 155 [2021-08-27 06:19:17,507 INFO L226 Difference]: Without dead ends: 155 [2021-08-27 06:19:17,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:17,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-08-27 06:19:17,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2021-08-27 06:19:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 110 states have internal predecessors, (115), 23 states have call successors, (23), 22 states have call predecessors, (23), 22 states have return successors, (23), 23 states have call predecessors, (23), 22 states have call successors, (23) [2021-08-27 06:19:17,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 161 transitions. [2021-08-27 06:19:17,519 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 161 transitions. Word has length 29 [2021-08-27 06:19:17,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:17,519 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 161 transitions. [2021-08-27 06:19:17,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:17,519 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 161 transitions. [2021-08-27 06:19:17,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:19:17,520 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:17,520 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] [2021-08-27 06:19:17,531 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 06:19:17,720 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 06:19:17,721 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 06:19:17,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:17,721 INFO L82 PathProgramCache]: Analyzing trace with hash -890594785, now seen corresponding path program 1 times [2021-08-27 06:19:17,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:17,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4908524] [2021-08-27 06:19:17,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:17,722 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:17,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:17,722 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 06:19:17,723 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 06:19:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:17,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 06:19:17,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:18,155 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 06:19:18,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:18,303 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 06:19:18,304 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:18,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4908524] [2021-08-27 06:19:18,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4908524] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:18,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:18,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-08-27 06:19:18,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035559390] [2021-08-27 06:19:18,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:19:18,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:18,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:19:18,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:19:18,306 INFO L87 Difference]: Start difference. First operand 153 states and 161 transitions. Second operand has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:18,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:18,397 INFO L93 Difference]: Finished difference Result 174 states and 184 transitions. [2021-08-27 06:19:18,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:19:18,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-08-27 06:19:18,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:18,401 INFO L225 Difference]: With dead ends: 174 [2021-08-27 06:19:18,401 INFO L226 Difference]: Without dead ends: 174 [2021-08-27 06:19:18,401 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 88.5ms TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:18,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-08-27 06:19:18,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 167. [2021-08-27 06:19:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 120 states have internal predecessors, (124), 25 states have call successors, (25), 24 states have call predecessors, (25), 25 states have return successors, (26), 25 states have call predecessors, (26), 24 states have call successors, (26) [2021-08-27 06:19:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 175 transitions. [2021-08-27 06:19:18,422 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 175 transitions. Word has length 29 [2021-08-27 06:19:18,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:18,423 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 175 transitions. [2021-08-27 06:19:18,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 175 transitions. [2021-08-27 06:19:18,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-27 06:19:18,424 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:18,424 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 06:19:18,435 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 06:19:18,624 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 06:19:18,625 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 06:19:18,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:18,625 INFO L82 PathProgramCache]: Analyzing trace with hash -390780931, now seen corresponding path program 1 times [2021-08-27 06:19:18,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:18,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721962037] [2021-08-27 06:19:18,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:18,626 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:18,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:18,627 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 06:19:18,630 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 06:19:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:18,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:19:18,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:18,964 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 06:19:18,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:19,122 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 06:19:19,123 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:19,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721962037] [2021-08-27 06:19:19,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721962037] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:19,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:19,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:19:19,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340918128] [2021-08-27 06:19:19,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:19:19,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:19,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:19:19,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:19:19,124 INFO L87 Difference]: Start difference. First operand 167 states and 175 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 06:19:19,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:19,158 INFO L93 Difference]: Finished difference Result 173 states and 181 transitions. [2021-08-27 06:19:19,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:19:19,159 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 06:19:19,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:19,160 INFO L225 Difference]: With dead ends: 173 [2021-08-27 06:19:19,160 INFO L226 Difference]: Without dead ends: 169 [2021-08-27 06:19:19,160 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:19:19,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-08-27 06:19:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-08-27 06:19:19,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 96 states have (on average 1.3125) internal successors, (126), 122 states have internal predecessors, (126), 25 states have call successors, (25), 24 states have call predecessors, (25), 25 states have return successors, (26), 25 states have call predecessors, (26), 24 states have call successors, (26) [2021-08-27 06:19:19,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 177 transitions. [2021-08-27 06:19:19,165 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 177 transitions. Word has length 32 [2021-08-27 06:19:19,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:19,165 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 177 transitions. [2021-08-27 06:19:19,165 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 06:19:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 177 transitions. [2021-08-27 06:19:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-27 06:19:19,166 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:19,166 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 06:19:19,183 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 06:19:19,376 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 06:19:19,376 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 06:19:19,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:19,377 INFO L82 PathProgramCache]: Analyzing trace with hash 69328541, now seen corresponding path program 1 times [2021-08-27 06:19:19,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:19,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521966287] [2021-08-27 06:19:19,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:19,377 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:19,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:19,378 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 06:19:19,380 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 06:19:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:19,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 06:19:19,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:19,759 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 06:19:19,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:19,987 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 06:19:19,987 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:19,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521966287] [2021-08-27 06:19:19,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521966287] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:19:19,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:19:19,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-27 06:19:19,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464623113] [2021-08-27 06:19:19,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:19:19,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:19,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:19:19,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:19:19,992 INFO L87 Difference]: Start difference. First operand 169 states and 177 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 06:19:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:20,163 INFO L93 Difference]: Finished difference Result 177 states and 187 transitions. [2021-08-27 06:19:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:19:20,164 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 06:19:20,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:20,167 INFO L225 Difference]: With dead ends: 177 [2021-08-27 06:19:20,167 INFO L226 Difference]: Without dead ends: 173 [2021-08-27 06:19:20,167 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 172.3ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:19:20,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-08-27 06:19:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-08-27 06:19:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 100 states have (on average 1.3) internal successors, (130), 126 states have internal predecessors, (130), 25 states have call successors, (25), 24 states have call predecessors, (25), 25 states have return successors, (26), 25 states have call predecessors, (26), 24 states have call successors, (26) [2021-08-27 06:19:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 181 transitions. [2021-08-27 06:19:20,174 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 181 transitions. Word has length 34 [2021-08-27 06:19:20,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:20,175 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 181 transitions. [2021-08-27 06:19:20,175 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 06:19:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 181 transitions. [2021-08-27 06:19:20,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:19:20,178 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:20,179 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 06:19:20,190 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 06:19:20,388 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 06:19:20,390 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 06:19:20,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:20,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1976839203, now seen corresponding path program 2 times [2021-08-27 06:19:20,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:20,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711635779] [2021-08-27 06:19:20,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:19:20,391 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:20,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:20,392 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 06:19:20,393 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 06:19:20,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:19:20,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:19:20,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:19:20,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:20,691 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 06:19:20,909 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 06:19:20,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:21,142 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 06:19:21,143 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:21,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711635779] [2021-08-27 06:19:21,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711635779] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:21,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:21,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:19:21,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731871784] [2021-08-27 06:19:21,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:19:21,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:21,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:19:21,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:19:21,145 INFO L87 Difference]: Start difference. First operand 173 states and 181 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 06:19:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:22,017 INFO L93 Difference]: Finished difference Result 198 states and 214 transitions. [2021-08-27 06:19:22,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:19:22,018 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 06:19:22,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:22,019 INFO L225 Difference]: With dead ends: 198 [2021-08-27 06:19:22,019 INFO L226 Difference]: Without dead ends: 198 [2021-08-27 06:19:22,020 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 195.7ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:19:22,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-08-27 06:19:22,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 172. [2021-08-27 06:19:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 100 states have (on average 1.29) internal successors, (129), 125 states have internal predecessors, (129), 25 states have call successors, (25), 24 states have call predecessors, (25), 25 states have return successors, (26), 25 states have call predecessors, (26), 24 states have call successors, (26) [2021-08-27 06:19:22,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 180 transitions. [2021-08-27 06:19:22,027 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 180 transitions. Word has length 38 [2021-08-27 06:19:22,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:22,027 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 180 transitions. [2021-08-27 06:19:22,028 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 06:19:22,028 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 180 transitions. [2021-08-27 06:19:22,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:19:22,032 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:22,032 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 06:19:22,044 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 06:19:22,242 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 06:19:22,242 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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 06:19:22,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:22,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1976839202, now seen corresponding path program 1 times [2021-08-27 06:19:22,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:22,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527742377] [2021-08-27 06:19:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:22,243 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:22,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:22,244 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 06:19:22,246 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 06:19:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:22,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:19:22,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:22,697 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 06:19:22,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:23,108 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 06:19:23,108 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:23,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527742377] [2021-08-27 06:19:23,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527742377] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:19:23,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:19:23,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-08-27 06:19:23,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260232403] [2021-08-27 06:19:23,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 06:19:23,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:23,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 06:19:23,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-08-27 06:19:23,111 INFO L87 Difference]: Start difference. First operand 172 states and 180 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 06:19:23,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:23,693 INFO L93 Difference]: Finished difference Result 184 states and 198 transitions. [2021-08-27 06:19:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:19:23,700 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 06:19:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:23,702 INFO L225 Difference]: With dead ends: 184 [2021-08-27 06:19:23,702 INFO L226 Difference]: Without dead ends: 180 [2021-08-27 06:19:23,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 648.4ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-08-27 06:19:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-08-27 06:19:23,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-08-27 06:19:23,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 108 states have (on average 1.2685185185185186) internal successors, (137), 133 states have internal predecessors, (137), 25 states have call successors, (25), 24 states have call predecessors, (25), 25 states have return successors, (26), 25 states have call predecessors, (26), 24 states have call successors, (26) [2021-08-27 06:19:23,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 188 transitions. [2021-08-27 06:19:23,711 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 188 transitions. Word has length 38 [2021-08-27 06:19:23,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:23,711 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 188 transitions. [2021-08-27 06:19:23,711 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 06:19:23,712 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 188 transitions. [2021-08-27 06:19:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-27 06:19:23,714 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:23,714 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, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:23,727 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 06:19:23,924 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 06:19:23,925 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 06:19:23,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:23,925 INFO L82 PathProgramCache]: Analyzing trace with hash 738093052, now seen corresponding path program 1 times [2021-08-27 06:19:23,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:23,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814145944] [2021-08-27 06:19:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:23,926 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:23,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:23,927 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 06:19:23,928 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 06:19:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:24,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 06:19:24,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:24,494 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 06:19:24,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:24,693 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 06:19:24,694 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:24,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814145944] [2021-08-27 06:19:24,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814145944] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:24,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:24,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-08-27 06:19:24,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419470988] [2021-08-27 06:19:24,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:19:24,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:24,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:19:24,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:19:24,696 INFO L87 Difference]: Start difference. First operand 180 states and 188 transitions. Second operand has 9 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:19:24,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:24,786 INFO L93 Difference]: Finished difference Result 194 states and 204 transitions. [2021-08-27 06:19:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:19:24,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2021-08-27 06:19:24,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:24,790 INFO L225 Difference]: With dead ends: 194 [2021-08-27 06:19:24,790 INFO L226 Difference]: Without dead ends: 194 [2021-08-27 06:19:24,790 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 88.4ms TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:24,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-08-27 06:19:24,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 190. [2021-08-27 06:19:24,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 113 states have (on average 1.2566371681415929) internal successors, (142), 138 states have internal predecessors, (142), 28 states have call successors, (28), 26 states have call predecessors, (28), 27 states have return successors, (29), 28 states have call predecessors, (29), 27 states have call successors, (29) [2021-08-27 06:19:24,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 199 transitions. [2021-08-27 06:19:24,799 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 199 transitions. Word has length 42 [2021-08-27 06:19:24,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:24,799 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 199 transitions. [2021-08-27 06:19:24,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:19:24,800 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 199 transitions. [2021-08-27 06:19:24,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 06:19:24,800 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:24,800 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 06:19:24,813 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 06:19:25,010 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 06:19:25,010 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 06:19:25,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:25,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1612308062, now seen corresponding path program 2 times [2021-08-27 06:19:25,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:25,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469581032] [2021-08-27 06:19:25,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:19:25,011 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:25,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:25,012 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 06:19:25,013 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 06:19:25,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:19:25,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:19:25,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:19:25,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:25,399 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 06:19:25,804 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 06:19:25,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:26,791 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 06:19:26,792 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:26,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469581032] [2021-08-27 06:19:26,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469581032] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:26,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:26,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:19:26,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600195170] [2021-08-27 06:19:26,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:19:26,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:26,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:19:26,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:19:26,797 INFO L87 Difference]: Start difference. First operand 190 states and 199 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 06:19:28,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:28,897 INFO L93 Difference]: Finished difference Result 193 states and 201 transitions. [2021-08-27 06:19:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:19:28,898 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 06:19:28,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:28,899 INFO L225 Difference]: With dead ends: 193 [2021-08-27 06:19:28,899 INFO L226 Difference]: Without dead ends: 193 [2021-08-27 06:19:28,900 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 907.5ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:19:28,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-08-27 06:19:28,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 189. [2021-08-27 06:19:28,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 113 states have (on average 1.247787610619469) internal successors, (141), 137 states have internal predecessors, (141), 28 states have call successors, (28), 26 states have call predecessors, (28), 27 states have return successors, (29), 28 states have call predecessors, (29), 27 states have call successors, (29) [2021-08-27 06:19:28,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 198 transitions. [2021-08-27 06:19:28,905 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 198 transitions. Word has length 46 [2021-08-27 06:19:28,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:28,905 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 198 transitions. [2021-08-27 06:19:28,905 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 06:19:28,906 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 198 transitions. [2021-08-27 06:19:28,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-27 06:19:28,906 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:28,906 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:28,921 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 06:19:29,116 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 06:19:29,116 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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 06:19:29,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:29,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1499185596, now seen corresponding path program 1 times [2021-08-27 06:19:29,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:29,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106181941] [2021-08-27 06:19:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:29,118 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:29,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:29,118 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 06:19:29,119 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 06:19:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:29,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:19:29,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:19:29,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:19:29,960 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:29,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106181941] [2021-08-27 06:19:29,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106181941] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:29,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:29,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:19:29,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738029116] [2021-08-27 06:19:29,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:19:29,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:29,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:19:29,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:19:29,961 INFO L87 Difference]: Start difference. First operand 189 states and 198 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-27 06:19:30,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:30,102 INFO L93 Difference]: Finished difference Result 202 states and 211 transitions. [2021-08-27 06:19:30,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:19:30,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2021-08-27 06:19:30,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:30,104 INFO L225 Difference]: With dead ends: 202 [2021-08-27 06:19:30,104 INFO L226 Difference]: Without dead ends: 171 [2021-08-27 06:19:30,104 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:19:30,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-08-27 06:19:30,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 161. [2021-08-27 06:19:30,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 96 states have (on average 1.28125) internal successors, (123), 119 states have internal predecessors, (123), 23 states have call successors, (23), 22 states have call predecessors, (23), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:19:30,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2021-08-27 06:19:30,109 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 47 [2021-08-27 06:19:30,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:30,109 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2021-08-27 06:19:30,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-27 06:19:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2021-08-27 06:19:30,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 06:19:30,110 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:30,110 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 06:19:30,125 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 06:19:30,320 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 06:19:30,320 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 06:19:30,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:30,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1012985954, now seen corresponding path program 1 times [2021-08-27 06:19:30,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:30,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018742826] [2021-08-27 06:19:30,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:30,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:30,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:30,337 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 06:19:30,338 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 06:19:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:30,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 06:19:30,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:31,067 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 06:19:31,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:32,016 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 06:19:32,016 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:32,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018742826] [2021-08-27 06:19:32,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018742826] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:19:32,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:19:32,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-08-27 06:19:32,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093352876] [2021-08-27 06:19:32,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-08-27 06:19:32,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:32,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-08-27 06:19:32,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 06:19:32,019 INFO L87 Difference]: Start difference. First operand 161 states and 168 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 06:19:32,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:32,463 INFO L93 Difference]: Finished difference Result 167 states and 174 transitions. [2021-08-27 06:19:32,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 06:19:32,464 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 06:19:32,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:32,465 INFO L225 Difference]: With dead ends: 167 [2021-08-27 06:19:32,465 INFO L226 Difference]: Without dead ends: 163 [2021-08-27 06:19:32,466 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 738.7ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-08-27 06:19:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-08-27 06:19:32,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2021-08-27 06:19:32,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 98 states have (on average 1.2755102040816326) internal successors, (125), 121 states have internal predecessors, (125), 23 states have call successors, (23), 22 states have call predecessors, (23), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:19:32,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 170 transitions. [2021-08-27 06:19:32,470 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 170 transitions. Word has length 51 [2021-08-27 06:19:32,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:32,470 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 170 transitions. [2021-08-27 06:19:32,470 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 06:19:32,470 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 170 transitions. [2021-08-27 06:19:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:19:32,471 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:32,471 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 06:19:32,481 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 06:19:32,680 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 06:19:32,681 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 06:19:32,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:32,681 INFO L82 PathProgramCache]: Analyzing trace with hash -2063436350, now seen corresponding path program 2 times [2021-08-27 06:19:32,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:32,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57320774] [2021-08-27 06:19:32,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:19:32,682 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:32,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:32,683 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 06:19:32,705 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 06:19:33,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:19:33,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:19:33,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:19:33,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:33,174 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 06:19:33,461 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 06:19:33,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:33,694 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 06:19:33,694 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:33,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57320774] [2021-08-27 06:19:33,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57320774] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:33,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:33,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:19:33,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843543389] [2021-08-27 06:19:33,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:19:33,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:33,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:19:33,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:19:33,696 INFO L87 Difference]: Start difference. First operand 163 states and 170 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 06:19:34,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:34,371 INFO L93 Difference]: Finished difference Result 187 states and 202 transitions. [2021-08-27 06:19:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:19:34,371 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 06:19:34,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:34,372 INFO L225 Difference]: With dead ends: 187 [2021-08-27 06:19:34,373 INFO L226 Difference]: Without dead ends: 187 [2021-08-27 06:19:34,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 176.1ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:19:34,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-08-27 06:19:34,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 161. [2021-08-27 06:19:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 119 states have internal predecessors, (123), 23 states have call successors, (23), 22 states have call predecessors, (23), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:19:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2021-08-27 06:19:34,378 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 53 [2021-08-27 06:19:34,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:34,379 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2021-08-27 06:19:34,379 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 06:19:34,379 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2021-08-27 06:19:34,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:19:34,380 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:34,380 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 06:19:34,398 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 06:19:34,590 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 06:19:34,590 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 06:19:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:34,591 INFO L82 PathProgramCache]: Analyzing trace with hash -2063436349, now seen corresponding path program 1 times [2021-08-27 06:19:34,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:34,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773079564] [2021-08-27 06:19:34,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:34,591 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:34,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:34,592 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 06:19:34,593 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 06:19:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:35,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:19:35,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:35,134 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 06:19:35,566 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 06:19:35,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:36,341 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 06:19:36,342 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:36,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773079564] [2021-08-27 06:19:36,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773079564] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:36,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:36,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:19:36,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490769185] [2021-08-27 06:19:36,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:19:36,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:36,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:19:36,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:19:36,344 INFO L87 Difference]: Start difference. First operand 161 states and 168 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 06:19:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:38,218 INFO L93 Difference]: Finished difference Result 159 states and 166 transitions. [2021-08-27 06:19:38,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:19:38,219 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 06:19:38,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:38,219 INFO L225 Difference]: With dead ends: 159 [2021-08-27 06:19:38,219 INFO L226 Difference]: Without dead ends: 159 [2021-08-27 06:19:38,220 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 733.9ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:19:38,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-08-27 06:19:38,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-08-27 06:19:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 98 states have (on average 1.2346938775510203) internal successors, (121), 117 states have internal predecessors, (121), 23 states have call successors, (23), 22 states have call predecessors, (23), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:19:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 166 transitions. [2021-08-27 06:19:38,225 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 166 transitions. Word has length 53 [2021-08-27 06:19:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:38,225 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 166 transitions. [2021-08-27 06:19:38,226 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 06:19:38,226 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 166 transitions. [2021-08-27 06:19:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-27 06:19:38,226 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:38,226 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] [2021-08-27 06:19:38,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:38,437 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 06:19:38,437 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 06:19:38,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:38,438 INFO L82 PathProgramCache]: Analyzing trace with hash 848250913, now seen corresponding path program 1 times [2021-08-27 06:19:38,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:38,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862231203] [2021-08-27 06:19:38,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:38,438 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:38,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:38,439 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 06:19:38,440 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 06:19:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:38,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:19:38,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:39,136 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 06:19:39,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:39,362 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 06:19:39,363 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:39,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862231203] [2021-08-27 06:19:39,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862231203] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:39,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:39,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-08-27 06:19:39,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378280697] [2021-08-27 06:19:39,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:19:39,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:39,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:19:39,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:19:39,364 INFO L87 Difference]: Start difference. First operand 159 states and 166 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:19:39,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:39,398 INFO L93 Difference]: Finished difference Result 161 states and 167 transitions. [2021-08-27 06:19:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:19:39,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-08-27 06:19:39,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:39,406 INFO L225 Difference]: With dead ends: 161 [2021-08-27 06:19:39,406 INFO L226 Difference]: Without dead ends: 159 [2021-08-27 06:19:39,406 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.4ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:19:39,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-08-27 06:19:39,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-08-27 06:19:39,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 98 states have (on average 1.2244897959183674) internal successors, (120), 116 states have internal predecessors, (120), 23 states have call successors, (23), 22 states have call predecessors, (23), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:19:39,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 165 transitions. [2021-08-27 06:19:39,417 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 165 transitions. Word has length 58 [2021-08-27 06:19:39,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:39,418 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 165 transitions. [2021-08-27 06:19:39,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:19:39,418 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 165 transitions. [2021-08-27 06:19:39,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 06:19:39,418 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:39,419 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] [2021-08-27 06:19:39,430 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 06:19:39,630 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 06:19:39,630 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 06:19:39,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:39,630 INFO L82 PathProgramCache]: Analyzing trace with hash -899782374, now seen corresponding path program 1 times [2021-08-27 06:19:39,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:39,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193969022] [2021-08-27 06:19:39,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:39,631 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:39,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:39,632 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 06:19:39,633 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 06:19:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:40,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:19:40,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:40,400 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 06:19:40,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:40,691 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 06:19:40,691 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:40,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193969022] [2021-08-27 06:19:40,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193969022] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:40,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:40,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-08-27 06:19:40,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831262143] [2021-08-27 06:19:40,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:19:40,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:40,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:19:40,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:40,693 INFO L87 Difference]: Start difference. First operand 159 states and 165 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:19:40,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:40,774 INFO L93 Difference]: Finished difference Result 163 states and 168 transitions. [2021-08-27 06:19:40,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:19:40,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2021-08-27 06:19:40,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:40,775 INFO L225 Difference]: With dead ends: 163 [2021-08-27 06:19:40,775 INFO L226 Difference]: Without dead ends: 159 [2021-08-27 06:19:40,775 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 70.3ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:19:40,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-08-27 06:19:40,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-08-27 06:19:40,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 98 states have (on average 1.2142857142857142) internal successors, (119), 115 states have internal predecessors, (119), 23 states have call successors, (23), 22 states have call predecessors, (23), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:19:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 164 transitions. [2021-08-27 06:19:40,779 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 164 transitions. Word has length 63 [2021-08-27 06:19:40,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:40,779 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 164 transitions. [2021-08-27 06:19:40,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:19:40,780 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 164 transitions. [2021-08-27 06:19:40,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-08-27 06:19:40,780 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:40,780 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] [2021-08-27 06:19:40,794 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 06:19:40,991 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 06:19:40,992 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 06:19:40,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:40,992 INFO L82 PathProgramCache]: Analyzing trace with hash 409918581, now seen corresponding path program 1 times [2021-08-27 06:19:40,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:40,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780834771] [2021-08-27 06:19:40,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:40,993 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:40,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:40,993 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 06:19:40,994 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 06:19:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:41,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 06:19:41,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:41,757 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 06:19:42,173 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 06:19:42,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:42,604 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 06:19:42,605 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:42,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780834771] [2021-08-27 06:19:42,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780834771] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:42,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:42,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-08-27 06:19:42,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143644886] [2021-08-27 06:19:42,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 06:19:42,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:42,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 06:19:42,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:19:42,607 INFO L87 Difference]: Start difference. First operand 159 states and 164 transitions. Second operand has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:19:43,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:43,639 INFO L93 Difference]: Finished difference Result 183 states and 196 transitions. [2021-08-27 06:19:43,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 06:19:43,640 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 74 [2021-08-27 06:19:43,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:43,641 INFO L225 Difference]: With dead ends: 183 [2021-08-27 06:19:43,641 INFO L226 Difference]: Without dead ends: 183 [2021-08-27 06:19:43,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 117 SyntacticMatches, 15 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 349.1ms TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-08-27 06:19:43,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-08-27 06:19:43,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 157. [2021-08-27 06:19:43,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 98 states have (on average 1.1938775510204083) internal successors, (117), 113 states have internal predecessors, (117), 23 states have call successors, (23), 22 states have call predecessors, (23), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:19:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 162 transitions. [2021-08-27 06:19:43,645 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 162 transitions. Word has length 74 [2021-08-27 06:19:43,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:43,645 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 162 transitions. [2021-08-27 06:19:43,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:19:43,646 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 162 transitions. [2021-08-27 06:19:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-08-27 06:19:43,646 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:43,646 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] [2021-08-27 06:19:43,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:43,858 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 06:19:43,858 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 06:19:43,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:43,859 INFO L82 PathProgramCache]: Analyzing trace with hash 409918582, now seen corresponding path program 1 times [2021-08-27 06:19:43,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:43,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492262042] [2021-08-27 06:19:43,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:43,859 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:43,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:43,860 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 06:19:43,863 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 06:19:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:44,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-27 06:19:44,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:44,674 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 06:19:45,297 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 06:19:45,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:46,812 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 06:19:46,812 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:46,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492262042] [2021-08-27 06:19:46,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492262042] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:46,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:46,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-08-27 06:19:46,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057682403] [2021-08-27 06:19:46,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-08-27 06:19:46,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:46,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-08-27 06:19:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-08-27 06:19:46,814 INFO L87 Difference]: Start difference. First operand 157 states and 162 transitions. Second operand has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:19:50,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:50,028 INFO L93 Difference]: Finished difference Result 155 states and 160 transitions. [2021-08-27 06:19:50,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:19:50,029 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 74 [2021-08-27 06:19:50,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:50,030 INFO L225 Difference]: With dead ends: 155 [2021-08-27 06:19:50,030 INFO L226 Difference]: Without dead ends: 155 [2021-08-27 06:19:50,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1544.0ms TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-08-27 06:19:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-08-27 06:19:50,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-08-27 06:19:50,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 111 states have internal predecessors, (115), 23 states have call successors, (23), 22 states have call predecessors, (23), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:19:50,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 160 transitions. [2021-08-27 06:19:50,034 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 160 transitions. Word has length 74 [2021-08-27 06:19:50,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:50,034 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 160 transitions. [2021-08-27 06:19:50,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:19:50,034 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 160 transitions. [2021-08-27 06:19:50,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-27 06:19:50,035 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:50,035 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] [2021-08-27 06:19:50,046 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 06:19:50,244 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 06:19:50,245 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 06:19:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:50,245 INFO L82 PathProgramCache]: Analyzing trace with hash 58138982, now seen corresponding path program 1 times [2021-08-27 06:19:50,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:50,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385673439] [2021-08-27 06:19:50,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:50,246 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:50,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:50,248 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 06:19:50,248 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 06:19:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:50,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:19:51,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:51,330 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 06:19:51,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:51,723 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 06:19:51,723 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:51,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385673439] [2021-08-27 06:19:51,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385673439] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:51,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:51,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2021-08-27 06:19:51,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115660175] [2021-08-27 06:19:51,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 06:19:51,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:51,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 06:19:51,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:19:51,725 INFO L87 Difference]: Start difference. First operand 155 states and 160 transitions. Second operand has 14 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-08-27 06:19:51,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:51,814 INFO L93 Difference]: Finished difference Result 161 states and 165 transitions. [2021-08-27 06:19:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:19:51,821 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 87 [2021-08-27 06:19:51,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:51,823 INFO L225 Difference]: With dead ends: 161 [2021-08-27 06:19:51,823 INFO L226 Difference]: Without dead ends: 155 [2021-08-27 06:19:51,823 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:19:51,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-08-27 06:19:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-08-27 06:19:51,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 98 states have (on average 1.163265306122449) internal successors, (114), 110 states have internal predecessors, (114), 23 states have call successors, (23), 22 states have call predecessors, (23), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-27 06:19:51,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 159 transitions. [2021-08-27 06:19:51,827 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 159 transitions. Word has length 87 [2021-08-27 06:19:51,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:51,828 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 159 transitions. [2021-08-27 06:19:51,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-08-27 06:19:51,828 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 159 transitions. [2021-08-27 06:19:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-08-27 06:19:51,829 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:51,829 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] [2021-08-27 06:19:51,842 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 06:19:52,042 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 06:19:52,042 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 06:19:52,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:52,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1134551509, now seen corresponding path program 1 times [2021-08-27 06:19:52,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:52,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287002102] [2021-08-27 06:19:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:52,043 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:52,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:52,045 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 06:19:52,068 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 06:19:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:52,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-27 06:19:52,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:53,002 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 06:19:53,595 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 06:19:53,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:54,056 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 06:19:54,056 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:54,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287002102] [2021-08-27 06:19:54,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287002102] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:54,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:54,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 17] imperfect sequences [] total 18 [2021-08-27 06:19:54,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601760287] [2021-08-27 06:19:54,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-27 06:19:54,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:54,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-27 06:19:54,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-08-27 06:19:54,058 INFO L87 Difference]: Start difference. First operand 155 states and 159 transitions. Second operand has 19 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 8 states have call successors, (28), 7 states have call predecessors, (28), 4 states have return successors, (21), 6 states have call predecessors, (21), 4 states have call successors, (21) [2021-08-27 06:19:55,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:55,266 INFO L93 Difference]: Finished difference Result 207 states and 224 transitions. [2021-08-27 06:19:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:19:55,267 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 8 states have call successors, (28), 7 states have call predecessors, (28), 4 states have return successors, (21), 6 states have call predecessors, (21), 4 states have call successors, (21) Word has length 100 [2021-08-27 06:19:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:55,268 INFO L225 Difference]: With dead ends: 207 [2021-08-27 06:19:55,268 INFO L226 Difference]: Without dead ends: 207 [2021-08-27 06:19:55,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 165 SyntacticMatches, 17 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 438.8ms TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2021-08-27 06:19:55,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-08-27 06:19:55,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 181. [2021-08-27 06:19:55,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 116 states have (on average 1.1637931034482758) internal successors, (135), 129 states have internal predecessors, (135), 26 states have call successors, (26), 26 states have call predecessors, (26), 27 states have return successors, (30), 25 states have call predecessors, (30), 25 states have call successors, (30) [2021-08-27 06:19:55,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 191 transitions. [2021-08-27 06:19:55,274 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 191 transitions. Word has length 100 [2021-08-27 06:19:55,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:55,275 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 191 transitions. [2021-08-27 06:19:55,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 8 states have call successors, (28), 7 states have call predecessors, (28), 4 states have return successors, (21), 6 states have call predecessors, (21), 4 states have call successors, (21) [2021-08-27 06:19:55,275 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 191 transitions. [2021-08-27 06:19:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-08-27 06:19:55,276 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:55,276 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] [2021-08-27 06:19:55,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:55,489 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 06:19:55,489 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 06:19:55,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:55,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1134551510, now seen corresponding path program 1 times [2021-08-27 06:19:55,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:55,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559555549] [2021-08-27 06:19:55,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:55,490 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:55,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:55,491 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 06:19:55,492 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 06:19:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:56,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-27 06:19:56,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:56,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:19:57,248 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 06:19:57,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:59,144 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 06:19:59,144 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:59,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559555549] [2021-08-27 06:19:59,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559555549] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:59,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:59,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 18] imperfect sequences [] total 36 [2021-08-27 06:19:59,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674284519] [2021-08-27 06:19:59,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-08-27 06:19:59,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:59,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-27 06:19:59,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1229, Unknown=0, NotChecked=0, Total=1332 [2021-08-27 06:19:59,146 INFO L87 Difference]: Start difference. First operand 181 states and 191 transitions. Second operand has 37 states, 28 states have (on average 3.7142857142857144) internal successors, (104), 23 states have internal predecessors, (104), 14 states have call successors, (33), 12 states have call predecessors, (33), 6 states have return successors, (23), 10 states have call predecessors, (23), 6 states have call successors, (23) [2021-08-27 06:20:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:02,437 INFO L93 Difference]: Finished difference Result 179 states and 187 transitions. [2021-08-27 06:20:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 06:20:02,438 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 28 states have (on average 3.7142857142857144) internal successors, (104), 23 states have internal predecessors, (104), 14 states have call successors, (33), 12 states have call predecessors, (33), 6 states have return successors, (23), 10 states have call predecessors, (23), 6 states have call successors, (23) Word has length 100 [2021-08-27 06:20:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:02,439 INFO L225 Difference]: With dead ends: 179 [2021-08-27 06:20:02,439 INFO L226 Difference]: Without dead ends: 179 [2021-08-27 06:20:02,440 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 159 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 2020.2ms TimeCoverageRelationStatistics Valid=151, Invalid=1741, Unknown=0, NotChecked=0, Total=1892 [2021-08-27 06:20:02,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-08-27 06:20:02,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2021-08-27 06:20:02,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 116 states have (on average 1.1293103448275863) internal successors, (131), 127 states have internal predecessors, (131), 26 states have call successors, (26), 26 states have call predecessors, (26), 27 states have return successors, (30), 25 states have call predecessors, (30), 25 states have call successors, (30) [2021-08-27 06:20:02,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 187 transitions. [2021-08-27 06:20:02,445 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 187 transitions. Word has length 100 [2021-08-27 06:20:02,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:02,445 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 187 transitions. [2021-08-27 06:20:02,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 28 states have (on average 3.7142857142857144) internal successors, (104), 23 states have internal predecessors, (104), 14 states have call successors, (33), 12 states have call predecessors, (33), 6 states have return successors, (23), 10 states have call predecessors, (23), 6 states have call successors, (23) [2021-08-27 06:20:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 187 transitions. [2021-08-27 06:20:02,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-27 06:20:02,447 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:02,447 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:20:02,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-08-27 06:20:02,660 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 06:20:02,660 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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 06:20:02,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:02,661 INFO L82 PathProgramCache]: Analyzing trace with hash -2129417995, now seen corresponding path program 1 times [2021-08-27 06:20:02,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:02,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42628302] [2021-08-27 06:20:02,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:02,661 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:02,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:02,662 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 06:20:02,663 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 06:20:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:03,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:20:03,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:03,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:04,382 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:20:04,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42628302] [2021-08-27 06:20:04,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42628302] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:20:04,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:20:04,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2021-08-27 06:20:04,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628766850] [2021-08-27 06:20:04,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 06:20:04,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:20:04,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 06:20:04,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:20:04,385 INFO L87 Difference]: Start difference. First operand 179 states and 187 transitions. Second operand has 14 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2021-08-27 06:20:04,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:04,512 INFO L93 Difference]: Finished difference Result 183 states and 189 transitions. [2021-08-27 06:20:04,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:20:04,514 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) Word has length 107 [2021-08-27 06:20:04,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:04,517 INFO L225 Difference]: With dead ends: 183 [2021-08-27 06:20:04,517 INFO L226 Difference]: Without dead ends: 177 [2021-08-27 06:20:04,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 138.8ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:20:04,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-08-27 06:20:04,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-08-27 06:20:04,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 115 states have (on average 1.1130434782608696) internal successors, (128), 125 states have internal predecessors, (128), 26 states have call successors, (26), 26 states have call predecessors, (26), 26 states have return successors, (29), 25 states have call predecessors, (29), 25 states have call successors, (29) [2021-08-27 06:20:04,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 183 transitions. [2021-08-27 06:20:04,524 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 183 transitions. Word has length 107 [2021-08-27 06:20:04,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:04,525 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 183 transitions. [2021-08-27 06:20:04,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2021-08-27 06:20:04,526 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 183 transitions. [2021-08-27 06:20:04,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-27 06:20:04,527 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:04,527 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 06:20:04,541 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 06:20:04,740 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 06:20:04,741 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 06:20:04,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:04,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1727985365, now seen corresponding path program 1 times [2021-08-27 06:20:04,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:04,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293543185] [2021-08-27 06:20:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:04,742 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:04,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:04,743 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 06:20:04,745 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 06:20:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:05,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 38 conjunts are in the unsatisfiable core [2021-08-27 06:20:05,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:05,875 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 06:20:06,654 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 06:20:06,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:07,199 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 06:20:07,199 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:20:07,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293543185] [2021-08-27 06:20:07,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293543185] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:20:07,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:20:07,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22, 21] imperfect sequences [] total 22 [2021-08-27 06:20:07,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511720285] [2021-08-27 06:20:07,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:20:07,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:20:07,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:20:07,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:20:07,201 INFO L87 Difference]: Start difference. First operand 177 states and 183 transitions. Second operand has 23 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 14 states have internal predecessors, (103), 10 states have call successors, (32), 9 states have call predecessors, (32), 4 states have return successors, (23), 7 states have call predecessors, (23), 5 states have call successors, (23) [2021-08-27 06:20:08,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:08,745 INFO L93 Difference]: Finished difference Result 210 states and 226 transitions. [2021-08-27 06:20:08,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-27 06:20:08,746 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 14 states have internal predecessors, (103), 10 states have call successors, (32), 9 states have call predecessors, (32), 4 states have return successors, (23), 7 states have call predecessors, (23), 5 states have call successors, (23) Word has length 113 [2021-08-27 06:20:08,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:08,747 INFO L225 Difference]: With dead ends: 210 [2021-08-27 06:20:08,747 INFO L226 Difference]: Without dead ends: 210 [2021-08-27 06:20:08,748 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 185 SyntacticMatches, 19 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 636.8ms TimeCoverageRelationStatistics Valid=103, Invalid=827, Unknown=0, NotChecked=0, Total=930 [2021-08-27 06:20:08,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-08-27 06:20:08,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 183. [2021-08-27 06:20:08,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 119 states have (on average 1.1092436974789917) internal successors, (132), 128 states have internal predecessors, (132), 29 states have call successors, (29), 29 states have call predecessors, (29), 26 states have return successors, (32), 25 states have call predecessors, (32), 28 states have call successors, (32) [2021-08-27 06:20:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 193 transitions. [2021-08-27 06:20:08,753 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 193 transitions. Word has length 113 [2021-08-27 06:20:08,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:08,753 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 193 transitions. [2021-08-27 06:20:08,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 14 states have internal predecessors, (103), 10 states have call successors, (32), 9 states have call predecessors, (32), 4 states have return successors, (23), 7 states have call predecessors, (23), 5 states have call successors, (23) [2021-08-27 06:20:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 193 transitions. [2021-08-27 06:20:08,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-27 06:20:08,754 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:08,755 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 06:20:08,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2021-08-27 06:20:08,987 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 06:20:08,987 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 06:20:08,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:08,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1727985364, now seen corresponding path program 1 times [2021-08-27 06:20:08,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:08,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897832652] [2021-08-27 06:20:08,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:08,988 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:08,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:08,989 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 06:20:08,991 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 06:20:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:10,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 48 conjunts are in the unsatisfiable core [2021-08-27 06:20:10,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:10,222 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 06:20:11,196 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 06:20:11,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:13,523 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 06:20:13,524 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:20:13,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897832652] [2021-08-27 06:20:13,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897832652] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:20:13,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:20:13,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 22] imperfect sequences [] total 44 [2021-08-27 06:20:13,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047234327] [2021-08-27 06:20:13,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-08-27 06:20:13,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:20:13,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-08-27 06:20:13,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1853, Unknown=0, NotChecked=0, Total=1980 [2021-08-27 06:20:13,526 INFO L87 Difference]: Start difference. First operand 183 states and 193 transitions. Second operand has 45 states, 34 states have (on average 3.588235294117647) internal successors, (122), 27 states have internal predecessors, (122), 18 states have call successors, (39), 16 states have call predecessors, (39), 6 states have return successors, (25), 12 states have call predecessors, (25), 8 states have call successors, (25) [2021-08-27 06:20:17,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:17,818 INFO L93 Difference]: Finished difference Result 181 states and 190 transitions. [2021-08-27 06:20:17,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-27 06:20:17,819 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 34 states have (on average 3.588235294117647) internal successors, (122), 27 states have internal predecessors, (122), 18 states have call successors, (39), 16 states have call predecessors, (39), 6 states have return successors, (25), 12 states have call predecessors, (25), 8 states have call successors, (25) Word has length 113 [2021-08-27 06:20:17,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:17,820 INFO L225 Difference]: With dead ends: 181 [2021-08-27 06:20:17,820 INFO L226 Difference]: Without dead ends: 181 [2021-08-27 06:20:17,821 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 175 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2673.5ms TimeCoverageRelationStatistics Valid=189, Invalid=2673, Unknown=0, NotChecked=0, Total=2862 [2021-08-27 06:20:17,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-08-27 06:20:17,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-08-27 06:20:17,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 119 states have (on average 1.084033613445378) internal successors, (129), 126 states have internal predecessors, (129), 29 states have call successors, (29), 29 states have call predecessors, (29), 26 states have return successors, (32), 25 states have call predecessors, (32), 28 states have call successors, (32) [2021-08-27 06:20:17,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 190 transitions. [2021-08-27 06:20:17,825 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 190 transitions. Word has length 113 [2021-08-27 06:20:17,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:17,826 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 190 transitions. [2021-08-27 06:20:17,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 34 states have (on average 3.588235294117647) internal successors, (122), 27 states have internal predecessors, (122), 18 states have call successors, (39), 16 states have call predecessors, (39), 6 states have return successors, (25), 12 states have call predecessors, (25), 8 states have call successors, (25) [2021-08-27 06:20:17,826 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 190 transitions. [2021-08-27 06:20:17,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-08-27 06:20:17,827 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:17,828 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, 1, 1, 1] [2021-08-27 06:20:17,842 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 06:20:18,041 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 06:20:18,042 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 06:20:18,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:18,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1066268322, now seen corresponding path program 1 times [2021-08-27 06:20:18,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:18,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548748260] [2021-08-27 06:20:18,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:18,043 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:18,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:18,044 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 06:20:18,044 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 06:20:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:19,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-27 06:20:19,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:20,783 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 06:20:20,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:21,874 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 06:20:21,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:20:21,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548748260] [2021-08-27 06:20:21,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548748260] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:20:21,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:20:21,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 21] imperfect sequences [] total 43 [2021-08-27 06:20:21,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642164399] [2021-08-27 06:20:21,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-08-27 06:20:21,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:20:21,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-08-27 06:20:21,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1726, Unknown=0, NotChecked=0, Total=1892 [2021-08-27 06:20:21,876 INFO L87 Difference]: Start difference. First operand 181 states and 190 transitions. Second operand has 44 states, 33 states have (on average 4.0) internal successors, (132), 26 states have internal predecessors, (132), 19 states have call successors, (43), 17 states have call predecessors, (43), 7 states have return successors, (26), 13 states have call predecessors, (26), 9 states have call successors, (26) [2021-08-27 06:20:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:23,957 INFO L93 Difference]: Finished difference Result 180 states and 189 transitions. [2021-08-27 06:20:23,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-27 06:20:23,958 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 33 states have (on average 4.0) internal successors, (132), 26 states have internal predecessors, (132), 19 states have call successors, (43), 17 states have call predecessors, (43), 7 states have return successors, (26), 13 states have call predecessors, (26), 9 states have call successors, (26) Word has length 116 [2021-08-27 06:20:23,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:23,959 INFO L225 Difference]: With dead ends: 180 [2021-08-27 06:20:23,959 INFO L226 Difference]: Without dead ends: 180 [2021-08-27 06:20:23,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 182 SyntacticMatches, 7 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1578.5ms TimeCoverageRelationStatistics Valid=230, Invalid=2422, Unknown=0, NotChecked=0, Total=2652 [2021-08-27 06:20:23,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-08-27 06:20:23,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-08-27 06:20:23,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 119 states have (on average 1.0756302521008403) internal successors, (128), 125 states have internal predecessors, (128), 29 states have call successors, (29), 29 states have call predecessors, (29), 26 states have return successors, (32), 25 states have call predecessors, (32), 28 states have call successors, (32) [2021-08-27 06:20:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 189 transitions. [2021-08-27 06:20:23,964 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 189 transitions. Word has length 116 [2021-08-27 06:20:23,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:23,964 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 189 transitions. [2021-08-27 06:20:23,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 33 states have (on average 4.0) internal successors, (132), 26 states have internal predecessors, (132), 19 states have call successors, (43), 17 states have call predecessors, (43), 7 states have return successors, (26), 13 states have call predecessors, (26), 9 states have call successors, (26) [2021-08-27 06:20:23,965 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 189 transitions. [2021-08-27 06:20:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-27 06:20:23,965 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:23,966 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, 1, 1, 1, 1, 1, 1] [2021-08-27 06:20:23,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-08-27 06:20:24,177 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 06:20:24,177 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 06:20:24,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:24,178 INFO L82 PathProgramCache]: Analyzing trace with hash -378207761, now seen corresponding path program 1 times [2021-08-27 06:20:24,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:24,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957923333] [2021-08-27 06:20:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:24,178 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:24,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:24,179 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 06:20:24,180 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 06:20:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:25,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 98 conjunts are in the unsatisfiable core [2021-08-27 06:20:25,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:25,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:25,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:25,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:25,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:25,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:25,932 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-08-27 06:20:25,933 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 06:20:28,192 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 06:20:28,304 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-08-27 06:20:28,304 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 06:20:30,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,220 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:30,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,226 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:30,227 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:30,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:30,236 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:30,237 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 06:20:31,755 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:31,756 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 06:20:31,857 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 06:20:31,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:36,298 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 1212 treesize of output 1102 [2021-08-27 06:20:36,332 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-08-27 06:20:36,334 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 260773 treesize of output 129701 [2021-08-27 06:21:20,161 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_f_22_get_#in~kobj.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_f_22_get_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse1 (bvadd (_ bv15 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|)) (.cse2 (bvadd (_ bv14 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|)) (.cse3 (bvadd (_ bv13 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|)) (.cse4 (bvadd |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv12 32)))) (or (not (= (let ((.cse0 (select (store |c_#memory_int| c_ldv_kobject_get_~kobj.base (let ((.cse10 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv15 32))) (.cse9 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv14 32))) (.cse8 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv13 32))) (.cse5 (select |c_#memory_int| c_ldv_kobject_get_~kobj.base)) (.cse6 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv12 32)))) (let ((.cse7 (bvadd (concat (concat (concat (select .cse5 .cse10) (select .cse5 .cse9)) (select .cse5 .cse8)) (select .cse5 .cse6)) (_ bv1 32)))) (store (store (store (store .cse5 .cse6 ((_ extract 7 0) .cse7)) .cse8 ((_ extract 15 8) .cse7)) .cse9 ((_ extract 23 16) .cse7)) .cse10 ((_ extract 31 24) .cse7))))) |v_f_22_get_#in~kobj.base_BEFORE_CALL_4|))) (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4))) (_ bv1 32))) (= (let ((.cse11 (select (store |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base| (let ((.cse17 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv15 32))) (.cse16 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv14 32))) (.cse15 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv13 32))) (.cse12 (select |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base|)) (.cse13 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv12 32)))) (let ((.cse14 (bvadd (concat (concat (concat (select .cse12 .cse17) (select .cse12 .cse16)) (select .cse12 .cse15)) (select .cse12 .cse13)) (_ bv1 32)))) (store (store (store (store .cse12 .cse13 ((_ extract 7 0) .cse14)) .cse15 ((_ extract 15 8) .cse14)) .cse16 ((_ extract 23 16) .cse14)) .cse17 ((_ extract 31 24) .cse14))))) |v_f_22_get_#in~kobj.base_BEFORE_CALL_4|))) (concat (concat (concat (select .cse11 .cse1) (select .cse11 .cse2)) (select .cse11 .cse3)) (select .cse11 .cse4))) (_ bv1 32))))) is different from false [2021-08-27 06:21:20,218 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:21:20,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957923333] [2021-08-27 06:21:20,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:21:20,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1433915641] [2021-08-27 06:21:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:21:20,219 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:21:20,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:21:20,219 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 06:21:20,220 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 06:21:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:21:22,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 142 conjunts are in the unsatisfiable core [2021-08-27 06:21:22,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:21:22,423 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 16 treesize of output 12 [2021-08-27 06:21:22,611 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-08-27 06:21:22,611 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 06:21:22,830 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-08-27 06:21:22,830 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 06:21:23,093 INFO L354 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2021-08-27 06:21:23,094 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 06:21:23,408 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-08-27 06:21:23,408 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 59 treesize of output 67 [2021-08-27 06:21:23,870 INFO L354 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2021-08-27 06:21:23,870 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 06:21:24,341 INFO L354 Elim1Store]: treesize reduction 344, result has 13.4 percent of original size [2021-08-27 06:21:24,341 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 81 treesize of output 95 [2021-08-27 06:21:24,876 INFO L354 Elim1Store]: treesize reduction 430, result has 12.6 percent of original size [2021-08-27 06:21:24,876 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 91 treesize of output 108 [2021-08-27 06:21:25,582 INFO L354 Elim1Store]: treesize reduction 556, result has 11.3 percent of original size [2021-08-27 06:21:25,582 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 103 treesize of output 123 [2021-08-27 06:21:26,592 INFO L354 Elim1Store]: treesize reduction 691, result has 10.5 percent of original size [2021-08-27 06:21:26,592 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 115 treesize of output 138 [2021-08-27 06:21:27,484 INFO L354 Elim1Store]: treesize reduction 840, result has 9.8 percent of original size [2021-08-27 06:21:27,484 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 127 treesize of output 153 [2021-08-27 06:21:28,529 INFO L354 Elim1Store]: treesize reduction 1003, result has 9.1 percent of original size [2021-08-27 06:21:28,530 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 139 treesize of output 168 [2021-08-27 06:21:29,815 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-08-27 06:21:29,816 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 06:21:31,225 INFO L354 Elim1Store]: treesize reduction 1296, result has 8.2 percent of original size [2021-08-27 06:21:31,226 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 06:21:32,873 INFO L354 Elim1Store]: treesize reduction 1496, result has 7.8 percent of original size [2021-08-27 06:21:32,873 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 06:21:34,630 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:21:34,630 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 06:21:41,260 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 06:21:43,296 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 06:21:43,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:43,497 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:21:43,501 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 06:21:49,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:49,382 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:21:49,383 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 06:21:54,034 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:21:54,034 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 06:21:57,465 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:21:57,465 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 06:21:58,800 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 06:21:58,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:18,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:22:18,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930486067] [2021-08-27 06:22:18,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:18,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:22:18,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:22:18,126 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 06:22:18,126 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 06:22:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:19,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 98 conjunts are in the unsatisfiable core [2021-08-27 06:22:19,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:20,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:20,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:20,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:20,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:22:20,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:22:20,125 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-08-27 06:22:20,126 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 06:22:22,264 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 06:22:22,394 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-08-27 06:22:22,394 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 06:22:22,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:22:22,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:22:22,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:22,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:22:22,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:22:22,954 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:22:22,954 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 06:22:23,369 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:22:23,369 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 06:22:23,402 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 06:22:23,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:24,706 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 1212 treesize of output 1102 [2021-08-27 06:22:24,737 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-08-27 06:22:24,738 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 16933 treesize of output 8741 [2021-08-27 06:23:08,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:23:08,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:23:08,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:23:08,382 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:23:08,382 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:23:08,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:23:08,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:23:08,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:23:08,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:23:08,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:23:08,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:23:08,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:23:08,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:23:08,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:23:08,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:23:08,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:23:08,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:23:08,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:23:08,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:23:08,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:23:08,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:08,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-08-27 06:23:08,809 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 06:23:08,996 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 06:23:09,001 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:23:09,004 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 06:23:09,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:23:09 BoogieIcfgContainer [2021-08-27 06:23:09,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:23:09,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:23:09,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:23:09,014 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:23:09,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:19:13" (3/4) ... [2021-08-27 06:23:09,017 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:23:09,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:23:09,018 INFO L168 Benchmark]: Toolchain (without parser) took 237149.71 ms. Allocated memory was 60.8 MB in the beginning and 474.0 MB in the end (delta: 413.1 MB). Free memory was 38.2 MB in the beginning and 156.1 MB in the end (delta: -117.9 MB). Peak memory consumption was 298.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:09,018 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 60.8 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 73.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:23:09,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.57 ms. Allocated memory is still 60.8 MB. Free memory was 38.1 MB in the beginning and 29.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:09,018 INFO L168 Benchmark]: Boogie Preprocessor took 121.74 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 29.2 MB in the beginning and 54.4 MB in the end (delta: -25.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:09,019 INFO L168 Benchmark]: RCFGBuilder took 1198.98 ms. Allocated memory is still 73.4 MB. Free memory was 54.1 MB in the beginning and 42.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:09,019 INFO L168 Benchmark]: TraceAbstraction took 235336.39 ms. Allocated memory was 73.4 MB in the beginning and 474.0 MB in the end (delta: 400.6 MB). Free memory was 42.3 MB in the beginning and 156.1 MB in the end (delta: -113.8 MB). Peak memory consumption was 286.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:09,019 INFO L168 Benchmark]: Witness Printer took 3.26 ms. Allocated memory is still 474.0 MB. Free memory is still 156.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:23:09,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 60.8 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 73.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 483.57 ms. Allocated memory is still 60.8 MB. Free memory was 38.1 MB in the beginning and 29.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 121.74 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 29.2 MB in the beginning and 54.4 MB in the end (delta: -25.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1198.98 ms. Allocated memory is still 73.4 MB. Free memory was 54.1 MB in the beginning and 42.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 235336.39 ms. Allocated memory was 73.4 MB in the beginning and 474.0 MB in the end (delta: 400.6 MB). Free memory was 42.3 MB in the beginning and 156.1 MB in the end (delta: -113.8 MB). Peak memory consumption was 286.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.26 ms. Allocated memory is still 474.0 MB. Free memory is still 156.1 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) }; [L771] CALL entry_point() [L764] struct ldv_kobject *kobj; [L765] 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; [L765] RET, EXPR ldv_kobject_create() [L765] kobj = ldv_kobject_create() [L766] CALL f_22_get(kobj) [L758] 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; [L758] RET ldv_kobject_get(kobj) [L766] RET f_22_get(kobj) [L767] CALL f_22_put(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: 770]: 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 49 procedures, 342 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 235269.1ms, OverallIterations: 27, TraceHistogramMax: 16, EmptinessCheckTime: 43.8ms, AutomataDifference: 25003.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3536 SDtfs, 1676 SDslu, 29940 SDs, 0 SdLazy, 16114 SolverSat, 406 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18426.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3159 GetRequests, 2574 SyntacticMatches, 99 SemanticMatches, 486 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2683 ImplicationChecksByTransitivity, 13675.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=10, InterpolantAutomatonStates: 338, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 194.5ms AutomataMinimizationTime, 26 MinimizatonAttempts, 171 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 475.5ms SsaConstructionTime, 1778.9ms SatisfiabilityAnalysisTime, 25300.9ms InterpolantComputationTime, 1548 NumberOfCodeBlocks, 1512 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3044 ConstructedInterpolants, 503 QuantifiedInterpolants, 13186 SizeOfPredicates, 129 NumberOfNonLiveVariables, 6377 ConjunctsInSsa, 425 ConjunctsInUnsatCore, 52 InterpolantComputations, 46 PerfectInterpolantSequences, 3800/4058 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 06:23:09,153 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...